I dont really understand what is so difficult...most of these dont have forward thrust.....i can by a 20 dollar plastic helicopter that does the same thing....not that difficult to make....they are able to make thousands that work and dont have to be individually dialed in....
Has anyone used autopilots to fly these in hover mode? There are lots of different gyro setups for relatively little cost that can fly almost anything
I have no idea why your going with multiple engines, when ducted winglets, and tail you only need 4 servo's, and link the ducts and control surfice's. One large engine probably takes out the instability while hovering (no throttle issues because the thrust is = in all the ducts, except when the duct.are gradualy close while the main ducts rotate to the back. Of course you know it works because its totally based on the working model a Harrier "jumpjet" :-) doh he beat me to it lol
I have no idea why your going with multiple engines, when ducted winglets, and tail you only need 4 servo's, and link the ducts and control surfice's. One large engine probably takes out the instability while hovering (no throttle issues because the thrust is = in all the ducts, except when the duct.are gradualy close while the main ducts rotate to the back. Of course you know it works because its totally based on the working model a Harrier "jumpjet" :-)
@mynamearekid I know what you mean, and they call themselfs pro's, and why are ppl finding it so hard to make VTOL RC's? We were making them back when i did BTEC aerospace in 96
Great Videos, Dave, Val, Keith, and Scott. If you're still doing the VTOL project, maybe you could have sliding slats or something instead of Differential Thrust to kinda lessen the thrust on one to make it pitch that way.
10:15 COANDA C-O-A-N-D-A!!! NOT CANADA or something else... that thing flies using the Coanda effect. If I remember exactly that effect sounds like this: attaching a moving fluid to a wall...sorry if I'm wrong. oh and Henri Coanda was a romanian inventor! i'm also romanian, so i'm happy ;)
Pretty nice but I still dont get why you want to use push props instead of a pull configuration... If your thrust is below your CG as you propose at ~14:30, you'll have a much more unstable equilibrium. Though instability will help maneuvering in forward flight, it will be an shitload of work with gyros adjustments and stuff. Great video and great info though!
@10:07. Co-and-a. Named after Romanian Aerodynamicist Henri Coanda who discovered that fluid attaches to and flows around a curved surface when it is flowing. Great video, thanks for posting.
if you designed the simple 4 heli blade in such a way that 2 blades would hold the plane whilst the other 2 blades transition to forward flight then the 2 blades that dont move could be used for pitch or roll
if you designed the simple 4 heli blade in such a way that 2 blades would hold the plane whilst the other 2 blades transition to forward flight then the 2 blades that dont move could be used for pitch
14:50. a problem, your idea of having the motors down then rotate up, so to take off you're going to need them to push and when they're up you need them to pull, it won't workkk :S
Helicopters do vertical takeoff/landing, pirouetting and transition into/out of forward flight just fine. The Osprey design works well enough also. Just what is it that you are trying to do that hasn't already been solved long ago?
You guys don't seem to have very specific design goals.
Awsome show guys. Good info. I love what you said about the WIKI experts, that is so True!. Keep up the good work, just put a sock in the camera girl LOL. Very distracting.
rc powers from the sound you dont fly heli the ground effect is rotor wash thats why you want fast lift off to get out of the wash befor it can move you around
@RCSuperPowers I don't understand what you mean. Check out Coanda Effect on wikipedia. This effect is used on modern STOL aircraft like the An-72. Forcefully speeding up air over a curved surface decreases the air pressure much more than conventional flight. It allows the wing to lift without much forward speed.
Can't believe I just spent 40 minutes watching these videos. Really goes to show just how interesting you've made them as I don't really have any experience/even much interest in RC-stuff in general. The VTOL is just something that really interests an engineer(student)/general geek.
Sounds alright. If that prop inertia thing is still a problem, some kind of airflow restrictor over the intake side of a ducted fan might be the way to go instead. That way you can throttle rapidly without need of adjustable prop. And there's a limit to the amount of vacuum that you can draw, thus the pressure differential would be less than if you tried to restrict the flow on the exhaust side. The trick is to find a material that's light and yet rigid enough to slide over the intake opening.
Did you guys ever hear of the Heinkel Lerche III ? Thats an interesting concept. Its O-shaped wings are around the props for stabilisation but in level flight they still have enough lift to keep the plane in the air. You should check that out
Sadly I do not have the type of disposable income to play around with these ideas, but I have a few ideas that you guys didnt mention and one almost completely bypasses your conundrum by turning one power/thrust source into 4.
The idea behind the Coanad UFO is a concept that I learned about in my Aerospace 1020 class (Theory of Flight). Its Bernoulli's principle. As velocity (of the air) goes up, pressure decreases causing lift.
the same principle that lets you blow over the top of a straw and because of the drop in pressure the liquid will rise higher in the straw. I learned that in 6th grade.... maybe college is over rated.
What about a small weight sliding along a bar. It will change the center of gravity... Moving with a fast servo, maybe it can be an idea. What you think ?
Like you vid. Look at rotormast on youtube. Have been getting in and out for a few months now. This project took 3 years and 5k. But the 12 Z was $1500 of it/ And another 1k for a custom mixer. This ship now goes in and out with ease. flew 3 flights yesterday with multible conversions and three today. Not allot of work to fly.
Coanda .. pronounced Co-And-Ah ... its a nice aeronautical principal dealing with boundry layer air. why couldnt you use your ducted fan in back with a vectored nossle their and perhaps another fan of some sort in front splitting thrust to each side with again vectored ports to add thrust ? why move and engine when you can rotate a tube ? I'm fairly sure there should be some form of stepper motor type arrangement that can slowly move the ducts to forward for thrust.
Neat. But if you only have enough power to do an easy vertical hover, your transition will = fail. It's simple vector (or trig) math, the compnent of net thrust that makes you go forward is subtracted from that which provides lift. So you actually need the kind of power to climb rapidly to do a sucessful transition. Helicopters don't vary rotor speed, and use collective to change thrust. Since a ducted prop doesn't have collective, obstructing air to lower output thrust at high power may work.
Youtube post chars too few... Anyhow, to be sucessful you need enough net thrust to maintain an adequate lift component, until your forward component gets you enough speed such that lift can come from wings. Then all your net thrust can go forward. BTW, running at full power and obstructing flow should be a workaround for inertia lag of spinning props/fans. Unless you can do collective style variable pitch, however obstructing airflow seems easier. There's my 2 cents, take it or leave it.
Nah, it's not. Because motor stays in the position when taking off, instead of transferring power for moving forward. So, it;s actually a helicopter in a shape of a airplane.
youtube user "Rotormast" has perfected the hover/transition process for electrics and has a video posted of an entire flight with multiple landings, take offs, hovering and forward flight. look him up. fully functioning v-22 with all the bells and whistles. As to turbines and jets, Skymaster is working on a fully functioning harrier turbine powered.
It's pronounced KO-ON-DA. It works by a vacuum formed by the change in direction of the moving air over the surface. As the air transitions from horizontal to vertical over the surface to vertical (down), a vacuum is formed at the curve, pulling the machine up.
Love your show! You've taught me a lot. been flyin for solid 2 years now, but your hair cut has been getting worse threw out the years...lol .... sorry!
EW's jet VTOL is practically a JCA (F35), the only difference being he rotates the the front fan instead of the rear, it even has wing tip RCS like the JCA.
You've drawn some insane conclusions from your experiments, but I love it, keep it coming!
try (#) fans down and (#) fans back. make the fans that point down able to vector from down to back. have the back fans locked in place. for takeoff and landing, us the down fans, hover and then activate the rear fans while the vertical are still pointing down. get the plane moveing forward with the rear fans, then vector the front fans so that they to piont backwards, and do the same for landings. (i'll post a video on this idea soon called " vertical takeoff/landing therory" check it out.)
I was thinking about having one large fan pointed down for take off and One pointed backward for flight. Then you would start with a VTOL and then a flick of the channel five switch and the VTOL motor would shut and the flight one would start. I'd do it, but I'm more of a builder and flyer. I don't now much about programming.
its hole is really big and the jet speeds up but then it takes its brakes off and kuickly makes the hole smaller giving it more thrust very fast, (note it works the other way round in properel ducted fans) but still it gives a very fast thrust change. And if you combine it with the usual speed controll you can get good results. use the speed control for changing the speed in forward movement and going up and down i vtol and then use the trust control to stabilise it.
Look up the Doak model 16 made for the Army in the 50's. Its in a Museum at Fort Eustis Virginia where I used to work and I think you will find that very interesting. Oh and it worked very well
im saying compressed air for stabilization. little blow off valves on the plane. mounted close to the middle for speed of reaction. then you can use the main motor for thrust and not worry about extra duty for one motor
The question i keep coming back to is , Are there fans strong enough and yet still light enough to make this plausible?, as in the f-35 type middle fan and rear fan
well i didnt get that they were only doing this for toys at first up the is a plane with an engine and fan system in the middle of it to make it foove and stay completely still, it has a Prat and Whintey engines in it, and dude im not a bro ok who the hell calls a girl a bro how old are you?....
Its amazing Dave how far we have come the last 10 years within the Rc world. Sitting back and realizing we are in areas now that were being explored in the 60's and 70s in the early days of the x plane series etc. Love the work you guys are up to.
you need more than a knob, as you rotate forward you need to proportionally increase throttle or there will be some altitude loss. if you rotate the engine 45 deg from the vertical position, you are only getting 71% of the original thrust down
Thanks, Dave, for featuring the Verticopter. As you mentioned, the Verticopter has been tested extensively in the simulator, but it also has had real, successful RC prototypes with successful transitions. If your viewers want more info about the Verticopter, I put a video response up for your approval. Thanks again! Great information!
Thanks, Dave....I started about a week ago. Going for the Concept VTOL (real thing is most likely vaporware) Falx 507 Tilt Wing. This is a bit different from a V22 as the whole wing tilts rather than just the motors.
I'll be posting my trials and tribulations on my rc-groups blog. Good luck with your project!
Thanks for the info - Good! We have all seen the video of the F-35 doing a VTOL - obviously no load - but has anyone see it transition to forward flight from vert. takeoff??
Wouldn't having the lifting fans at the top of the a/c be like holding the top of the broomstick? i.e. because the CoG would be below the base (the fans' CoP), it would be positively stable; a roll would cause negative feedback, bringing the CoG back underneath, so it is level again. It would probably not make that much difference cos the pivot would still be close to the CoG, but every little helps? Or is there something else, which I don't know about?
yea i was thinking the same thing, I love the vids and dave has a good hands on education, but im not sure that vtol test bed with the tall towers is a proper application of the balancing a broom stick concept. Though it all depends on where the CG is on that test bed.
(pghern) really, are you kidding? The F-35 owns the hat trick in VTOL, vertical take off, transition to horizontal, supersonic flight, transition to vertical, hover.
lol i knew that vtol would be too harsh and cost too much, i mentioned it on one of the earlier vids about this concept...but stol is good too, you realized how much of a bite you were taking on the concept then realized you'd need more than you can afford, so..looking forward to an stol or somethin
This video held so much information and videos that Reilly brought the ideas home on what you are going to do with your plane. This video made my weekend. I look so forward to seeing how your set up works when you start test flying it. Thank you for sharing your knowledge and i can not wait to see your next video. god bless you all there and your family. I hope you have a great Sunday.
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I prefer your old videos over your new ones...
randomrcstuff 6 months ago in playlist RC AIRPLANES! (CLICK HERE)
I prefer your old videos over your new ones...
randomrcstuff 6 months ago
stop un-listing videos please!!
randomrcstuff 6 months ago in playlist RC AIRPLANES! (CLICK HERE)
@randomrcstuff Good idea. I should send them straight to PRIVATE instead.
RCSuperPowers 6 months ago
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randomrcstuff 6 months ago in playlist RC AIRPLANES! (CLICK HERE)
lol linkey link
matthewcollingwood 1 year ago
After years trying to make a VTOL you guys are the best thing it ever happen to me!
Nevermind121 1 year ago
I dont really understand what is so difficult...most of these dont have forward thrust.....i can by a 20 dollar plastic helicopter that does the same thing....not that difficult to make....they are able to make thousands that work and dont have to be individually dialed in....
KATOMATE01 1 year ago
Has anyone used autopilots to fly these in hover mode? There are lots of different gyro setups for relatively little cost that can fly almost anything
Theriomalstrom 1 year ago
I have no idea why your going with multiple engines, when ducted winglets, and tail you only need 4 servo's, and link the ducts and control surfice's. One large engine probably takes out the instability while hovering (no throttle issues because the thrust is = in all the ducts, except when the duct.are gradualy close while the main ducts rotate to the back. Of course you know it works because its totally based on the working model a Harrier "jumpjet" :-) doh he beat me to it lol
Me102288 1 year ago
I have no idea why your going with multiple engines, when ducted winglets, and tail you only need 4 servo's, and link the ducts and control surfice's. One large engine probably takes out the instability while hovering (no throttle issues because the thrust is = in all the ducts, except when the duct.are gradualy close while the main ducts rotate to the back. Of course you know it works because its totally based on the working model a Harrier "jumpjet" :-)
Me102288 1 year ago
The Coanda is easy to understand, it works the same as a wing fast air on top = low presure = lift
zebadee277 1 year ago
@QuantumQuacks
LOL Big kid getting off on calling others names!
TheWingflyer 1 year ago
"What do they call that less desity... a vacuum.. a vacuum..." ITS CALLED LIFT!!!!!!!! FUCK!!!!!!! AERONAUTICS 101!!!! JESUS CHRIST!!!!!!
mynamearekid 1 year ago
@mynamearekid I know what you mean, and they call themselfs pro's, and why are ppl finding it so hard to make VTOL RC's? We were making them back when i did BTEC aerospace in 96
zebadee277 1 year ago
What motor is he using on that big F-35? Can anyone please tell me.
omega3677 1 year ago
Great Videos, Dave, Val, Keith, and Scott. If you're still doing the VTOL project, maybe you could have sliding slats or something instead of Differential Thrust to kinda lessen the thrust on one to make it pitch that way.
legoliker7517 1 year ago
Make a BIG AV8-B harrier whit EDF :D
juandragon1 1 year ago
Kinda reminds me of the Halo Hornets
CUMSmith 1 year ago
FWIW, I think coanda is pronounced "co-ann-duh". I'm not sure of which syllable gets 'stressed'.
RocKiteman 1 year ago
@RocKiteman the "ann"
Jdogdrums7 1 year ago
@Jdogdrums7 Gotcha, Chief....
RocKiteman 1 year ago
FWIW, I think coanda is pronounced "co-ann-duh". I'm not sure of which syllable gets 'stressed'.
RocKiteman 1 year ago
10:15 COANDA C-O-A-N-D-A!!! NOT CANADA or something else... that thing flies using the Coanda effect. If I remember exactly that effect sounds like this: attaching a moving fluid to a wall...sorry if I'm wrong. oh and Henri Coanda was a romanian inventor! i'm also romanian, so i'm happy ;)
h3xyournightmare 1 year ago
Pretty nice but I still dont get why you want to use push props instead of a pull configuration... If your thrust is below your CG as you propose at ~14:30, you'll have a much more unstable equilibrium. Though instability will help maneuvering in forward flight, it will be an shitload of work with gyros adjustments and stuff. Great video and great info though!
waltibaba 1 year ago
what would happen if you used a sort of inverted "V" shape for the fans to blow air down and to the sides in the front of the plane?
everynewdayweeblycom 1 year ago
@10:07. Co-and-a. Named after Romanian Aerodynamicist Henri Coanda who discovered that fluid attaches to and flows around a curved surface when it is flowing. Great video, thanks for posting.
pete2778 1 year ago
you all should like totally take some help from the swat katz lol :P XD
brendendas 1 year ago
why does the dude on the left keeps cutting the guy on the right... freaking damn irritating
BLADEMANDAD 1 year ago
good old head wind...makes you plan look like a VTOL rc plane...that is until the wind all of a sudden goes away and you stall and crash xD
studionightbird0 1 year ago
tozzzzzzzzzzzzzzz
intellegence63smart 1 year ago
9:58 that looks like something from avatar!
carmine5120 1 year ago
This has been flagged as spam show
if you designed the simple 4 heli blade in such a way that 2 blades would hold the plane whilst the other 2 blades transition to forward flight then the 2 blades that dont move could be used for pitch or roll
MegaJacko6 1 year ago
if you designed the simple 4 heli blade in such a way that 2 blades would hold the plane whilst the other 2 blades transition to forward flight then the 2 blades that dont move could be used for pitch
MegaJacko6 1 year ago
Anyone come up with a proper jet engine for VTOL RC rather than prop driven RC?
MovieMad007 1 year ago
What about the switch blade you see on tv
jetflyer96 1 year ago
gyro controlling speed controllers works just fine bruv :)
0n3m1s1s0 1 year ago
A friend of mine used to say "Koala" effect XD !!
solnegrolunaroja 1 year ago
Hey, the Heinkel Lerche is a broomstick theory combined with stacked counter rotating propellers.
I'm sure you already know about oldschool WW2 VTOL's, but it'd be awesome to incorporate the Lerche's ideas into a project.
treeof611 1 year ago
Hey, the Heinkel Lerche is a broomstick theory combined with stacked couter rotating propellers.
I'm sure you already know about oldschool WW2 VTOL's, but it'd be awesome to incorporate the Lerche's ideas into a project.
treeof611 1 year ago
delicious info! congrats from brazil!
cesarskydiver 1 year ago
03:52 - moonshine?
rokinrobin 1 year ago
14:50. a problem, your idea of having the motors down then rotate up, so to take off you're going to need them to push and when they're up you need them to pull, it won't workkk :S
MiiSTMAN 1 year ago
@MiiSTMAN EXACTLY :) but all he has to do is make the motors swivel BACKWAARDS and the problem is miraculously solved lol
0n3m1s1s0 1 year ago
@0n3m1s1s0 yes aha :)
MiiSTMAN 1 year ago
@MiiSTMAN It did work, in all four videos, I dont know where youre getting the idea the transition doesnt work.
NelielTuOderswank 1 year ago
Helicopters do vertical takeoff/landing, pirouetting and transition into/out of forward flight just fine. The Osprey design works well enough also. Just what is it that you are trying to do that hasn't already been solved long ago?
You guys don't seem to have very specific design goals.
KDanagger 1 year ago
Video won't play for me past 11 minutes.
bastian74 1 year ago
Nice video, very informative.
You have another subscriber.
bookworm1960 1 year ago
I like the AT&T add
TamiyaExperienced 1 year ago
Just get a heli :P problem gone.
MrJacobbbo 1 year ago
あっれ
makua15457 1 year ago
pffft i can do that
neighbor98 1 year ago
Drinking moon shine 3:55
alexgomez123 1 year ago
air hogs has one that turns so its a helicopter then a plane
pkmnXpert 1 year ago
Excellent video, im still smiling, and very jelous!
kempley-helicopters . com
KempleyHelicopters 1 year ago
I'll just take a swig from my gallon jar of water....
roastoo00ooveges 1 year ago
couple tree weeks LOL 13:55
mazafuzle 1 year ago
Awsome show guys. Good info. I love what you said about the WIKI experts, that is so True!. Keep up the good work, just put a sock in the camera girl LOL. Very distracting.
SixxKicks 1 year ago
always when the older guy talks other dude keep saying yes yes yes yes...
nippe97 1 year ago
hey you guys should make one on the wing tips and on the tail you can set up a 3ch cheapy 20$ rc heli set-up and just glue it there
XxstryaexX1 1 year ago
rc powers from the sound you dont fly heli the ground effect is rotor wash thats why you want fast lift off to get out of the wash befor it can move you around
dude7422 1 year ago
thats awsome i am trying to do vtol with a multiplex minimag tiltwing mod one motor on each wing and one on the tail for pitch
edfjets101 1 year ago
TRY AN OSPREY DESIGN!
jameslalu1 1 year ago
Vertigo is not a short take-off it is VTOL--clearly seen..and has transition.
trondyne 1 year ago
wow at 3:50 he talks about a program...
what kind of a program? any examples?
Thanks!
DrDimk0o 1 year ago
this guy, wobby01 made a very sicsesful VTOL, andit works real good
0012554 1 year ago
the miniature model you prefer is same as v-22 osprey
TheShravanth 1 year ago
This has been flagged as spam show
Coanda Effect, It's called the KO-AND-A Effect!
LOLDISNEYLAND 1 year ago 2
@LOLDISNEYLAND I think they now changed to the "Koo-Koo-A-Fect" just to bother you.
RCSuperPowers 1 year ago 5
@RCSuperPowers I don't understand what you mean. Check out Coanda Effect on wikipedia. This effect is used on modern STOL aircraft like the An-72. Forcefully speeding up air over a curved surface decreases the air pressure much more than conventional flight. It allows the wing to lift without much forward speed.
LOLDISNEYLAND 1 year ago
@RCSuperPowers Good one Dave.
Lakerguy1000 1 year ago
I laugh so hard, this a great Hobby guys!
nipponhouseplayer 1 year ago
Can't believe I just spent 40 minutes watching these videos. Really goes to show just how interesting you've made them as I don't really have any experience/even much interest in RC-stuff in general. The VTOL is just something that really interests an engineer(student)/general geek.
jipasd 1 year ago
Sounds alright. If that prop inertia thing is still a problem, some kind of airflow restrictor over the intake side of a ducted fan might be the way to go instead. That way you can throttle rapidly without need of adjustable prop. And there's a limit to the amount of vacuum that you can draw, thus the pressure differential would be less than if you tried to restrict the flow on the exhaust side. The trick is to find a material that's light and yet rigid enough to slide over the intake opening.
pauljs75 1 year ago
right!?
craztboy 1 year ago
@ 9:53 those were the planes they use in avatar movie... the exact design... awesome...
yamaha4759 1 year ago
Did you guys ever hear of the Heinkel Lerche III ? Thats an interesting concept. Its O-shaped wings are around the props for stabilisation but in level flight they still have enough lift to keep the plane in the air. You should check that out
Buemmo 1 year ago
first one looks VERY muck like it's being dangled!
korodore 1 year ago
Use the gyro to control the pitch of props not the speed of motors?
rballn1 1 year ago
that craft @ 10:00 is like that thing in avatar :-)
hanfmaster 1 year ago
THAT IS A PRETTY PLANE I REALLY WANT IT!
blazeabla 1 year ago
you are one famous person
SuperPlanemaster 1 year ago
lol 11:51
KartKing4ever 2 years ago 4
For aeronautics sakes ,
IT'S CO-ANDA, anyone who studied a little aerodynamics should know this.
Jebus guys, that name should ring a bell to anyone constructing planes , RC or otherwise.
boinkboink1968 2 years ago
these guys should have a tv show
sredneok 2 years ago 63
@sredneok not should, they NEED a TV show!
rockerzac99 1 year ago
Sadly I do not have the type of disposable income to play around with these ideas, but I have a few ideas that you guys didnt mention and one almost completely bypasses your conundrum by turning one power/thrust source into 4.
burnrider2001 2 years ago
WRONG.. vertigo can hover. and its old tech....i know i filmed the video you show and know the pilot
sonixsp 2 years ago
muito bom! muito criativo !!
rogguigo 2 years ago
The answer lies with in the Skyrider.
shoopwhoopX 2 years ago
put four ducted fans like the first guy and then put a prop on so you can go foward
dude0886951 2 years ago
The idea behind the Coanad UFO is a concept that I learned about in my Aerospace 1020 class (Theory of Flight). Its Bernoulli's principle. As velocity (of the air) goes up, pressure decreases causing lift.
retsofauhsoj101 2 years ago
the same principle that lets you blow over the top of a straw and because of the drop in pressure the liquid will rise higher in the straw. I learned that in 6th grade.... maybe college is over rated.
burnrider2001 2 years ago
virticopter is on x plane simulator i have it but dont have a way to pay for the download to add the plane to my system
baileythedudeman57 2 years ago
What about a small weight sliding along a bar. It will change the center of gravity... Moving with a fast servo, maybe it can be an idea. What you think ?
Agarmantes 2 years ago
I that one bottle of whiskey you drinking ha??
TalaxY84 2 years ago 2
Like you vid. Look at rotormast on youtube. Have been getting in and out for a few months now. This project took 3 years and 5k. But the 12 Z was $1500 of it/ And another 1k for a custom mixer. This ship now goes in and out with ease. flew 3 flights yesterday with multible conversions and three today. Not allot of work to fly.
Rotormast 2 years ago 3
Coanda .. pronounced Co-And-Ah ... its a nice aeronautical principal dealing with boundry layer air. why couldnt you use your ducted fan in back with a vectored nossle their and perhaps another fan of some sort in front splitting thrust to each side with again vectored ports to add thrust ? why move and engine when you can rotate a tube ? I'm fairly sure there should be some form of stepper motor type arrangement that can slowly move the ducts to forward for thrust.
Kaboom0623 2 years ago 3
The first jet reacts fast enough with the EDFs because they are very small. Small jets can spool up and down quickly
gilligasad 2 years ago
Neat. But if you only have enough power to do an easy vertical hover, your transition will = fail. It's simple vector (or trig) math, the compnent of net thrust that makes you go forward is subtracted from that which provides lift. So you actually need the kind of power to climb rapidly to do a sucessful transition. Helicopters don't vary rotor speed, and use collective to change thrust. Since a ducted prop doesn't have collective, obstructing air to lower output thrust at high power may work.
pauljs75 2 years ago
Youtube post chars too few... Anyhow, to be sucessful you need enough net thrust to maintain an adequate lift component, until your forward component gets you enough speed such that lift can come from wings. Then all your net thrust can go forward. BTW, running at full power and obstructing flow should be a workaround for inertia lag of spinning props/fans. Unless you can do collective style variable pitch, however obstructing airflow seems easier. There's my 2 cents, take it or leave it.
pauljs75 2 years ago 2
12:42
its call a high alpha
FordManMT 2 years ago
did you ever look at the "flying Flapjack"
FordManMT 2 years ago
@b101aa2
Nah, it's not. Because motor stays in the position when taking off, instead of transferring power for moving forward. So, it;s actually a helicopter in a shape of a airplane.
sokolum 2 years ago
youtube user "Rotormast" has perfected the hover/transition process for electrics and has a video posted of an entire flight with multiple landings, take offs, hovering and forward flight. look him up. fully functioning v-22 with all the bells and whistles. As to turbines and jets, Skymaster is working on a fully functioning harrier turbine powered.
b101aa2 2 years ago
that's pretty neat. when they tweak the stabilization a bit ,its gonna be even better.
JonGarrett2010 2 years ago
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randomvidz14 2 years ago
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randomvidz14 2 years ago
try to make a V-22 osprey
DillardxDUH 2 years ago
Or the pelican from halo!
Onlooker117 2 years ago
omg i just watched a 16.29minute video lol nice
anthony100000000 2 years ago
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Nice try. Keep it up check out esteembpo + com for social media marketing. reyuyu
bethaprivttee 2 years ago
I think that if you put the fans higher or in the upper portion of the plane, it will be MORE stable. but u use gyros, so it doesnt really matter lol
SpartanDara117 2 years ago
Dammit, their called TILTROTORS!!!! Say it with me T I L T R O T O R ...
Seanamon78 2 years ago
but then again, a lot of your airplanes dave have no aerodynamics in them like the extra 300, its flat winged. :P
just thought i'd point that out.
Sharod101 2 years ago
It's pronounced KO-ON-DA. It works by a vacuum formed by the change in direction of the moving air over the surface. As the air transitions from horizontal to vertical over the surface to vertical (down), a vacuum is formed at the curve, pulling the machine up.
timberbridge 2 years ago
coanda effect is like the basic in jet prop..and they don't know about it..?
aserta 2 years ago
I dont think their planes use the coanda effect for flight.
matszz 2 years ago
last time i checked most airplanes use coanda effect except for the cube. don't ask what the cube is...there's a cake inside
aserta 2 years ago
the cake is a lie
singer3188 2 years ago
What if you had 4 like at 11:20 and made the 2 side ones move forward and back
sk8terdudx10 2 years ago
Love your show! You've taught me a lot. been flyin for solid 2 years now, but your hair cut has been getting worse threw out the years...lol .... sorry!
bendover0420 2 years ago
Love your pseudo-science, real funny.
EW's jet VTOL is practically a JCA (F35), the only difference being he rotates the the front fan instead of the rear, it even has wing tip RCS like the JCA.
You've drawn some insane conclusions from your experiments, but I love it, keep it coming!
ChrisHeli1978 2 years ago
try (#) fans down and (#) fans back. make the fans that point down able to vector from down to back. have the back fans locked in place. for takeoff and landing, us the down fans, hover and then activate the rear fans while the vertical are still pointing down. get the plane moveing forward with the rear fans, then vector the front fans so that they to piont backwards, and do the same for landings. (i'll post a video on this idea soon called " vertical takeoff/landing therory" check it out.)
planemaniac1 2 years ago
I was thinking about having one large fan pointed down for take off and One pointed backward for flight. Then you would start with a VTOL and then a flick of the channel five switch and the VTOL motor would shut and the flight one would start. I'd do it, but I'm more of a builder and flyer. I don't now much about programming.
HangarX1 2 years ago
If eddie weeks ever did a take-off from the ground I'd like to see it. Can anyone find a vid of him taking off from the ground with the rig?
carbunkle101 2 years ago
Comment removed
alempalem 2 years ago
lol can i have ur toy chinook? I love those thins.
Camaroson2008 2 years ago
maby you could make a plane like the V-22 osprey
catalogTO82 2 years ago
Look again at the Vertigo. Looks to me like it came to a stop (after a short forward roll) before it lifted off.
garyshoaf 2 years ago
its hole is really big and the jet speeds up but then it takes its brakes off and kuickly makes the hole smaller giving it more thrust very fast, (note it works the other way round in properel ducted fans) but still it gives a very fast thrust change. And if you combine it with the usual speed controll you can get good results. use the speed control for changing the speed in forward movement and going up and down i vtol and then use the trust control to stabilise it.
tomek123kotek 2 years ago
What about if u use ducted fansbut then control the thrust by making the hole bigger and smaller like in some jets ,when it lifts off ...
tomek123kotek 2 years ago
Look up the Doak model 16 made for the Army in the 50's. Its in a Museum at Fort Eustis Virginia where I used to work and I think you will find that very interesting. Oh and it worked very well
cobrala 2 years ago
im saying compressed air for stabilization. little blow off valves on the plane. mounted close to the middle for speed of reaction. then you can use the main motor for thrust and not worry about extra duty for one motor
omendesign 2 years ago
The question i keep coming back to is , Are there fans strong enough and yet still light enough to make this plausible?, as in the f-35 type middle fan and rear fan
Skurgefaust 2 years ago
I see variable pitch props being good for this.
leobaby 2 years ago
good luck guys! when u get it perfected, will u post plans on ur site?
sierra043 2 years ago
there has to be a way for the center fan to control roll very simply.
Skurgefaust 2 years ago
Its not pronounced conada or condae its pronounced "Kwandae" (Coanda) now if these guys were real engineers they would know their stuff.
Brenstar 2 years ago
you know they already have a plan out there that does this right, with Prat and Witney engines.
beleaveinme16 2 years ago
lol
Skurgefaust 2 years ago
no bro, the f-35 engine/fan system isn't like anything previously made. This is quite unique.
Skurgefaust 2 years ago
well i didnt get that they were only doing this for toys at first up the is a plane with an engine and fan system in the middle of it to make it foove and stay completely still, it has a Prat and Whintey engines in it, and dude im not a bro ok who the hell calls a girl a bro how old are you?....
beleaveinme16 2 years ago
who the hell thinks someone can see through the interwebz and see your a girl, who cares what you are...o0 Please leave comments that are helpful.
Skurgefaust 2 years ago
well hmmm, me like most people have picks up on their profile... want to say something smart perhaps?
beleaveinme16 2 years ago
yes, I could put up a pic of Cookie Monster, dosent mean im really cookie monster.....
Skurgefaust 2 years ago
yea and then again thats obvious its not you then....
beleaveinme16 2 years ago
well most ppl wouldnt put really pics up and not be that person....
beleaveinme16 2 years ago
the Video name is F-35 Lightning II
Skurgefaust 2 years ago
Start simple-The basics of the Real Tech. How it works in real life (pretty simple) watch this video /watch?v=WPYDKAtn-7w&feature=related
He simply used the bleed air from the fan for roll control, i do not know how that factors into the limitations of R/C's but its where im starting.
Skurgefaust 2 years ago
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thead600 2 years ago
I really enjoyed this video. Great job!
karlmahlmann 2 years ago
Its amazing Dave how far we have come the last 10 years within the Rc world. Sitting back and realizing we are in areas now that were being explored in the 60's and 70s in the early days of the x plane series etc. Love the work you guys are up to.
bluedog1976 2 years ago
Go australia LOL
qw1er12sad4as 2 years ago
What's with the 3 stooges haircut ... Moe!
jellysideup 2 years ago
with the verticopter they may have a knob and slowly rotate the props foward cause little or no drop in the aircraft.
snhp9 2 years ago
you need more than a knob, as you rotate forward you need to proportionally increase throttle or there will be some altitude loss. if you rotate the engine 45 deg from the vertical position, you are only getting 71% of the original thrust down
mutilatedjak 2 years ago
You took it right out of my moth thatnks for the correction.
snhp9 2 years ago
gyro for esc? thats new. verrryyy nicey.
kapitanC 2 years ago
Thanks, Dave, for featuring the Verticopter. As you mentioned, the Verticopter has been tested extensively in the simulator, but it also has had real, successful RC prototypes with successful transitions. If your viewers want more info about the Verticopter, I put a video response up for your approval. Thanks again! Great information!
danklaue 2 years ago
"Go Ahead, Start Your 2 Yr Project Now."
Thanks, Dave....I started about a week ago. Going for the Concept VTOL (real thing is most likely vaporware) Falx 507 Tilt Wing. This is a bit different from a V22 as the whole wing tilts rather than just the motors.
I'll be posting my trials and tribulations on my rc-groups blog. Good luck with your project!
vanish56 2 years ago
I love this project and can't wait to see it working :D
carlosthecactus 2 years ago
lol, buy a helicopter
pyropaul566 2 years ago
Thanks for the info - Good! We have all seen the video of the F-35 doing a VTOL - obviously no load - but has anyone see it transition to forward flight from vert. takeoff??
pghern 2 years ago
instead of speeding up or slowing down the props on the gyro, can't you use variable pitch on the gyros? or would that make it too heavy again...
slacker3442 2 years ago
hahaha
nice jug!
stencilwashington 2 years ago
Hey dave, I have some suggestion for you. You can try to use flap setting channel to change from heli mode to airplane mode.
jasleil 2 years ago
as always some very good information.
i always learn a thingy or two watching your videos.
great job
HobbySuperFreak 2 years ago
Only 2 things!!!!
cheeset6 2 years ago
oh very nice
2deluxe58 2 years ago
Wouldn't having the lifting fans at the top of the a/c be like holding the top of the broomstick? i.e. because the CoG would be below the base (the fans' CoP), it would be positively stable; a roll would cause negative feedback, bringing the CoG back underneath, so it is level again. It would probably not make that much difference cos the pivot would still be close to the CoG, but every little helps? Or is there something else, which I don't know about?
frankstrudel 2 years ago
yea i was thinking the same thing, I love the vids and dave has a good hands on education, but im not sure that vtol test bed with the tall towers is a proper application of the balancing a broom stick concept. Though it all depends on where the CG is on that test bed.
mutilatedjak 2 years ago
WHY DOESN'T NASA build toys like the F35 and F22 and SELL THEM WORLDWIDE?
It would cost far less than regular Nasa programs and it would be profitable.
Nasa could EASILY design a realistic F-35 or Harrier using their advanced concepts and they could sell it to us/ mass produced/ for a large profit.
Why wait for China to make it?
whitecollarcriminal 2 years ago 2
i just put 5 thin ribbons on my wild hawk in the bak. does anyone think it will still fly normally?
aircraftalex97 2 years ago
"zoomy zoom..."
Nice vid!
adamdapatsfan 2 years ago
That's not nice (05:30)....
(pghern) really, are you kidding? The F-35 owns the hat trick in VTOL, vertical take off, transition to horizontal, supersonic flight, transition to vertical, hover.
localdude69 2 years ago
lol i knew that vtol would be too harsh and cost too much, i mentioned it on one of the earlier vids about this concept...but stol is good too, you realized how much of a bite you were taking on the concept then realized you'd need more than you can afford, so..looking forward to an stol or somethin
zythepsarian 2 years ago
This video held so much information and videos that Reilly brought the ideas home on what you are going to do with your plane. This video made my weekend. I look so forward to seeing how your set up works when you start test flying it. Thank you for sharing your knowledge and i can not wait to see your next video. god bless you all there and your family. I hope you have a great Sunday.
JoeFielding72 2 years ago
verga
kiphone 2 years ago