Rubber Band Powered Flight

[TheWilliam1991tube]

they are very stupids

[giomenpc]

mas inutil impocible jajjaaa

[ScienceguyOrg]

On the original design you need dihedral or winglets for stability, the landing gear could be lighter. Do some reading and try again, you can make it work!

[GORDON49X]

These were crap.

[ChiIdKiIIer]

65 HP? didn't know horses could fly hehe :)

[MiniMegaMuffin]

Who thought the first plane was WAY bigger?

[bonbonbuns]

its either to heavey, or needs the prepellors to spin faster.

[hollyrollerful]

Fly outside, earling morning. Maiden flights require unrestricted airspace. Hand launch over soft grass. Adjust model as necessary.

[FreindlyMantis]

You need either a stronger rubber band, a bigger tail, or launch it gently by hand. If you eliminate the stall they both look like they will fly. Very nice job.

[toaster550]

put a rc motor on there then it would fly

[freakstyle2030]

hell if i went throught sll the trouble with builing them and they were to heavy for the ruber band to carry i would cut the nose piece flat and mount a small motor on it

[00Jesusrocks]

you guys need bigger tails!!! so the planes wont stall

[Bushflyerman]

First off, it is nice to see kids your age with interests other than video games. The plane looks awesome. I own a 1946 Aeronca Cheif myself. The initial take off attempt is a perfect example of the "yaw" that is developed from a single prop aeroplane. I believe you would of had lift off if the main wings had more angle of incedence. If you noticed with a tail dragger, when the tail comes up, the angle at which the main wings intersect the air, they are basically straight. Awesome though!

[esl19]

D+ Good song though.

[xarlz159]

they should make a hydraulics cannon like the aircraft carrier do

[multicolor0]

The second one needs dihedral, more nose weight, and less drag producing landing gear.

[multicolor0]

The first one didn`t have enough power to take off from the ground. Try hand launching both of them.

[AugustusLarch]

You should check out the contemperary designs in the model aviation world. You are way off getting something to perform well. You can buy kits from SIG that are a good start. It's okay to scratchbuild but you need better design parameters. That second design might have worked with a lifting stabilizer. Visit a local model club or read a modeling magazine for more info.

No one tries for distance in rubber power anymore. Duration is where it is at.

[imbok]

Build, Fly, Crash, Repair, Modify, Repeat.

[ncn8ochaser]

@imbok hahaha got it worked down to science, eh? ;)

[christos200]

be aware of the torque ! makes the aircraft making a left roll due to propeller torque on the chassis by spinning right

[VienQuach]

get some aerodynamics and aircraft stability knowledge.

[nibbler125]

second one was tail heavy

[monboy10]

you should of made it so once it got off of the ground the heavy landing gear would come off

[pfishy69]

Your build quality is superb. try trimming your models and check the centre of gravity to make sure there is enough nose weight

[PedroKolbEmmel]

fail  and the diedral?????

[Kokilo97]

JAJAJAJAJAJA

[aaronrose83]

fail

[rc18trocks]

if wheel base was wider it wouldn't tip so much :)

[SgtHamster45]

whats up wit the landing gear

[tinorkertesz]

dude, you really dont know anything about airplanes!!?? that's the shittiest thing in youtube!!!

when i was 10 i made better airplanes

[NIGHTEHAWK]

same, but give him some credit for effort

[Reallaty]

omg is everyone retarded who has a rubber band powered plane? just freakin throw it and it will flly for longer and better

[tommyeflight89]

@Reallaty

You're retarded and clearly do not know much of anything relating to this subject. A classic 'Youtube idiot', posting and commenting where you do not belong. A proper free flight rubber powered model can achieve flight times on the order of 10mins indoors. Outdoors, they can fly out of sight.

The planes shown here are a good attempt, but appear too heavy and overbuilt to fly well, if at all.

[Reallaty]

@tommyeflight89 10 minutes are you serious, ill believe you when you make a vid and show me

[jetplaneflyer]

@Reallaty

Do a search in Youtube for 'F1D'.. Flights of arround ten minutes are possible indoors.

A search on 'F1B' will show you some outdoor rubber power models. They need special 'dethermaliser' devices to prevent them flying away.

[The700jam]

@tommyeflight89 its not about how fun it is its about how far it flys

[tomview1]

@The700jam I do this for fun....am I wrong?

[AdamSchaller123]

@tommyeflight89 i wonder how many people read your ENTIRE comment

[MSJDesign]

@Reallaty Are you dumb?

[Reallaty]

@MSJDesign nope I can speak but thanks for asking

[MSJDesign]

@Reallaty Can you read? Complete sentences? Grasp the concept of gravity? Chew your own food? Wipe your own rear?

[Reallaty]

@MSJDesign im just going to ignore what you said in your comment because clearly you've gone crazy. im pretty sure you get the joke because if you were trying to insult me you spelled it wrong. just laugh and forget about it, if you comment back then ive become an important obstacle in your life and you wouldnt want that would you.

[Bucker131Jungmann]

hey, in what grade was this?

[TheFreddyweddy]

the second plane needs a longer fuselarge stick it will mak it more stable you could also add dihideral

[1968DartGTS]

May not of worked, but at least you tried it out and had the balls to post your results. Good on you. It is never a failure because you always learn something from a situation. So goes the good part of life!

[Footballar09]

wow that was dumb

[JoAcORaBbIdSrUleZ]

you must see the el proyecto del avioncito or el vuelo de gala javier and que vuelo caray!!! :)

[PabloVader]

seee the el proyecto del avioncito

[stealthhamster7]

# 2 is a little tale heavy

[MissDaProach]

I would say the angle of incidence of the wing relative to the fuselage is too little on the homemade design and that is why it doesnt fly well. the airfoil looked like a perfectly symmetric one as well. This would not give it enough lift to fly.

[ETericET]

Because of the direction of the prop spin you must put a slight angle on the prop axis to blow up onto the underside of the wing to counter this.

[Nitroboss2007]

what about reduce weight and get some information about center of gravity???

[spiritointhe84]

ok now you need a rpm moltiplicator at the end of the rubber band!

[bananasfoster2]

The prop spinning causes torque so you need a rudder on there and point it in the direction the prop is not spinning. Just a little though. Enough to keep you straight. You are getting good lift it is just that you need to make sure the wing is not touching the ground. Maybe stick ailerons and elevators on there to for up trim and direction correction. lol rhyme.

[Freerunner72]

The yellow one flies great if you have the CG about 1/ of the way down the wing and you THROW IT!!!!!!!! the ground launch takes up about half the rubberbands power BTW i thing the homemade blue one the wing was too far forwrd

[hopeso]

You need down thrust and right thrust on the propeller. You need to add lots of dihedral to the wing. You need to have the balance point 1/3rd back from the leading edge. You need a few degrees of incidence on the wing.

[mojsije1234]

EPIC FAIL!!!!!!!!!!!!!!!!!!!

[Mark2790]

At least you had a go. Learn from your mistakes, make adjustments, and try again.

[mustkill139]

nice really cool.  whats the song

[edwin4759]

plane was too heavy. and center of gravity is up forward too much.

[Ignantredneck]

lose the music, and dont post any more slide shows on youtube. Faggot.

[Anthonytheforgotten]

cool project :)

[coatduck]

it a little late but you have to counter the torque roll, mabey by adding some flaps to the main wing

[MEGAS1LORD1DEVIN]

5/5

[eduardofborrego]

You need respect the cg...and your structure is mutch robust

[grayngreen]

The landing gear is your problem.... it's throwing the CG (center of gravity) too far to the rear. Make it lighter weight and pointing to the nose and not the tail. You can try more rubber and stretch winding it . You're working way to hard to re-invent the wheel !

[owngeblade]

the reason your plane reered to the left was because your landing gears are too narrow i never put wheels on mine and rather throw them than floor launch them

[gwheyduke]

Try some dihedral in the wings.

[luckytdt]

yea, hand launch time

[MIGUEL2005LIMA]

is aeronca.

[Hello3427956704]

its not ale heavy, the back stabalizers ar way to tiny and must be bigger. also adding a V to the wing would help.

[frederic470]

the blue one is tail heavy, however is still needs a larger tail.... wings further back would help a lot

[flightsimace]

the blue one would have flowen had it just not been so tail heavy that was the problem

[grk65]

Live and learn, Nice try

Keep trying, never give up.

[WillDeStijl]

weak sauce! Why make a video and put it on Youtube? to be embarrassed?

[bmcz]

the landing gear is too far back from the center of gravity for it to take off from the wheels. if the landing gear is moved forward, there is no reason the Aeronca should not take off from the wheels.

[rideyz3]

no no no you cant let it just take off... you got to toss it

[sparhu]

you've just got to make sure that the cg is about 1/4 of an inch behind the center of pressure, and of course that its balanced latteraly. either add weight to the nose (checking... then add or subtract accordingly) or mount the wings so that the cg is on the right spot. nice design though. 5 stars

[herikdaris]

quien canta esta cancion?

[rpompeu]

incubus - Drive

[zultone]

Need dihedral in the wings, a little down w/right thrust for the motor, and your Center of gravity needs adjusted.

Good looking planes though

[awsem1o1]

dope it it makes the tissue tingt!

[lfonden]

the second version needed mor tail stablization nad the main wing needs a to sit further back on the fueselage(to keep from stalling) and you need more of a "V" tilt on the main wing(for stablizaition)=)

[aeromodelistacalo]

esto no es lo tuyo anda dejalo

[PerryMerca]

UHm yo dude freakin nice job but if i were you get the plane in your hand and trow it hard and then it goes in the air. There's no way it would take off like that.But otherwise nice job man

[dabliomusic]

BEST PLANE...SONG 10000000!!!!!

[speedstakerguy]

try throwing the planes?

[kmelon1]

did u use dope or heat cover?

[marceloyanez111]

i recommend instead of masking tape use tissue paper its lighter

[spader699]

did you spray the parts with water coz that shrinks the tissue and gives it a better finish

[arpnlaei]

That Piper cub thing would maybe fly if you lighten up that  bulky landing gear. Good vid though. :)

[sk8hards]

that suckes totaly!!

[jackofclubs469]

That wasn't cool. They didn't fly

[xddorox]

Definitely a CG issue for both planes. Very nice construction otherwise.

[yfz45094]

what a douche

[rocketbat]

nice attemps!, the second one should work if you slide the wing backwards to push the CoG forwards.

[majikrebel]

i participated in a similar project in my high school for a state wide competition known as science olympiad

i got eigth in the state with my plane. SOme advice is to make the plane as light as possible. mine had a wingspan of 50 centimeters and weighed under 7 grams

it flew for 43 seconds in a circle in a gym. I used simple ribs and mylar for the wings.

[pigmie1]

gotta spread the wheels apart a bit so it wont tip so easily