Gyrhino Gyrocopter doing a jump takeoff

[lmogden1]

great video

[pacificcloud]

Thats nifty, I want one

[FooManAU]

Search for You-Tube video titled : Aero-TV: Jump Take-off Gyros - Dick Degraw's Homemade Masterpieces.

In the video you can see Dick explaining how his gyro was made and how it works to be able to do the jump take-off.

[neuralwarp]

@tchick it may be custom built, and jump take off may be fairly unusual, but it is just a gyrocopter. A hybrid rotorcraft either has wings or a rotor that is powered during flight. This has neither.

[RunningSwimmingMan]

That is awesome...

[skyboy1956]

@tchick ...If you look carefully, you'll note the rotor never "cones" prior to liftoff to suggest it is pulling collective pitch and providing lift. Also rotor torque, and the rearward tilt of the rotor would cause issues. The Gyrhino is a true autogyro, the rotor provides lift by air flowing up and through the rotor, not vice-versa like a helicopter. I believe in this video, Mr. DeGraw is facing into the wind which contributes to the spectactular zero roll takeoff run.

[tchick]

@skyboy1956 Have you inspected this aircraft in-person? I have. It has a collective. Dick pulls the collective to change the pitch for the jump takeoff and then returns it to the flying pitch. If all it takes is facing into the wind to perform a jump takeoff we'd all be doing them.

[skyboy1956]

Mr. DeGraw has 2 Gyrhinos. I believe the other one is flown by his wife. Both Gyrhinos were flying around my house this morning South of Jackson, MI. Really cool stuff. I wish they would drop in to my airstrip sometime.

Nothing fake about it.

[liqu1dcham3leon]

How does he pull this off? Do you need to have some amount of wind coming at you to take off so quickly? I don't know much about gyros, so...

[tchick]

@liqu1dcham3leon This is a custom hybrid aircraft. He has collective pitch like a helicopter to achieve the jump and then transitions into autorotation flight (like a normal gyro flies) after the jump.

[soar8hours]

If my airplane wing falls off, I pull the rocket deployed parachute handle :)

[Puronicth]

Hi. I'm new to this. Is that a "prerotator" he uses to get the main disk up? Is that a separate motor for that?

[tchick]

@Puronicth It does not use a separate engine for the prerotator. The prerotator is supplied power by the one engine.

[tiltrotorcoaxialheli]

1935 Pitcairn auto-gyro could do jump takeoffs and vertical landings. Its nice to have air in your name.

[kaderoder]

If any of you obtain an Aircraft, dont let shit fall off it. Most of that stuff is really important.

[cwren1022]

Is it a heli or a gyrocopter? Either way I want one

[adambee32]

WHAT? how the hell did that happen? is the rotor powered or free-spinning?

[FYIitsnotme]

How much?

[salamalycoom]

Was that a 3 bladed wing?

[tchick]

@salamalycoom Yes, this gyro uses a 3 bladed rotor system. This is a hybrid aircraft. The rotor head is similar to a helicopter's.

[DusSpotter96]

LOL

[gewizz2]

i dont trust helicopters bcoz they dont glide if a blade falls off

[tchick]

I don't trust planes because they can't glide if a wing falls off.

[manoman0]

@tchick - I don't even trust birds because they can't glide if their wings fall off.

[villian121]

@tchick lmao that was good.

[aumi20]

@tchick loool

[killobot9]

@tchick not to be a smart ass about it but the f 15 proved that theory wrong

[tchick]

@killobot9 OK Mr Smarty pants, If you're referring to gliding without a wing an f15 did it once. That was one of those one-in-a -million occurrences and they weren't gliding. They were using a lot of power. Let's see them do it on a regular basis. There have been several recent incidents where small planes have lost their wings in flight and they were not able to glide. What kind of aircraft do you fly?

[NelielTuOderswank]

@killobot9 Yeah, people fall to earth without parachutes and live too, but it doesn't happen very often now does it?

[bluecorvid]

@killobot9 That video was a fake. Go to Snopes.

[DavidTayKokHuat]

@tchick I choose the one that have wings and rotor so if the wings fell off it still have rotor and if the rotor fell off it still have wings.

[superjezz]

@tchick Because Gyros can glide when the rotor falls off yeah?.

[i8thegoverment]

@superjezz thumbs up for the @tchick comment!! so many retarded comments on yt

[kohehd]

@tchick What if your rotorcraft loses its wings?

[OABluewiring]

@tchick An F-15 can, apparently.

[lotnik2207]

@gewizz2 its not true :] heli can landing save with no working engine ...

[HeatSroken777]

u need to mount a paintball gun to it

[ChaostheClown]

@HeatSroken777 what the hell kind of thinking is this? lol

[HeatSroken777]

@ChaostheClown well when i play woodsball my team sometimes gets pinned down and we need a ton of fire support

if u could have a gyro fl in and gun people down it would be very helpful

[ChaostheClown]

@HeatSroken777 lol

[pdxflyerZ]

Wow! Gotta try a gyro this year

[tchick]

Find a gyro flyin and go for a ride. Where do you live?

[pdxflyerZ]

I live in Portland Oregon - very near Scappoose where Sport Copter is located. Called once before for lessons and they were closed on the weekends.

[wordreet]

Cool! I've been reading up on Autogyros. The jump happens when the power is removed from the rotor and the blades change pitch automatically. This effect was discovered by Juan de la Cierva in about 1936. He was the front runner in developing these brilliant little craft.

5/5

[tchick]

A normal autogyro will not do a jump takeoff like this. This Autogyro has a rotor head similar to a helicopter. The pilot changes the pitch of the rotorblades to create the jump.

[wordreet]

Ah, so is this type of mechanism not available generally? I see a LFINO machine on here with it.. Yes, I guess it would be better if the pilot initiates the jump rather than it happening automatically, as on Cierva's earlier ones.

[Navigator7777777]

@ import,

Ugly is in the eye of the beholder.

Can you show me some cool looking gyrocopters that can do the same thing?

[Skyway172]

crazy fuker

[importsc41886]

that thing is ugly

[sf49ersrule]

haha for real

[madichelp0]

but cool

[wordreet]

@importsc41886

A Dragonfly is ugly compared to a Peregrin Falcon, but both are ultra sucessful. ;-)

[Tecnobingo]

@importsc41886 I think you have use a "kind" word :-)

But since I don't know who is the designer (amateur,company, etc...) I think it is however...interesting.

[importsc41886]

@Tecnobingo yes i agree it is interesting but not appealing to the eyes but that's just my opinion

[Blackson187]

LOL

[adrianrubi]

do you need a headwind for a jump-take-off?

[tchick]

No. It will jump whithout a headwind. Dick built another gyro like this for his wife this past year. Someone posted a video of them jumping both gyros at the Mentone, IN flyin.

[leviterande]

collective or what?

[tchick]

Yes. This is a hybrid aircraft. The collective is used for takeoff only and then it flies like a gyro in-flight.

[kakompo]

Wow. This one such a powerful engine. Nice!

[mrboxleytheonly]

do want!!!

[SVAFnemesis]

there must be a powerful engine, this gyro jumps like a helicopter

[123456789114]

wow slow 2 take off then BAM!! he's gone

i envy him

[stuga]

I WANT!

[inricheetos]

This thing is marvelous

[majurpain]

...so it isn't a collective, not a helicopter

[tchick]

This is a custom gyro and it does have a collective that changes the pitch of the rotorblades for the jump-takeoff. The blades then return to a fixed pitch for normal flight.

[gamr4life]

Isn't CarterCopter trying to patent this "collective pitch for gyros" on their design? Are there any single-place kits or plans for a VTOL gyro available now? This has got to be the wave of the future for gyros (I would think); the VTOL capability of the heli, without the design complexity and cost!

[wqvsaa]

After posting I thought about it and remembered that the forward momentum is what keeps the blades spinning.

I can't wait to buy one myself.

[wqvsaa]

Can this gyro hover like a helicopter since it has a collective?

[tchick]

No. He just uses the collective to do the jump. After that the blades return to a fixed pitch for normal flight.

[bounty93]

isn't that essentially a helicopter?

[tchick]

Not really. He just changes the pitch in the blades to do the jump takeoff. After that the blades return to a fixed pitch for normal flight. The benefits of autogiro flight compared to helocopter flight is less pilot workload. Most gyros will fly hands off the controls. Most Helos don't.

[fairyheli]

you could put the helicopter out of buisness soon!!!

[ddrumsman549]

Are these expensive to maintain and how safe can these be?

[ChopperH1]

Thanks. Very good explanation. Too bad, flying is that expensive in germany, otherwise,I´d like to try once.

[ChopperH1]

I wonder bout the quick takeoff. Remember, there has to be no power on the main rotor when flying, otherwise you would need a tailrotor to balance the torque. Just to rise the angle of attack of the main rotor blades (for climbing) without the airflow of foreward speed would cause an excessive loss of rpm at the main rotor. So, how does it work? Am I wrong?

[fakebacke]

cool

but its too heavy

[alancj05]

The transmition can be built lighter because it doesn't need to handle much power to spin the blades up. Also it is not critical that it works 100% reliably. Some are simply a friction wheel on the motors flyweel with a flexable shaft to a gear on the rotor. You just don't want it to fail to disengage or you'll be spinning out of control.

[Chao5bringer]

you don't go so high so if the engine cut your literally fucked

[dinoanastos]

not true. it will auto rotate all the way down

[majurpain]

I'm not a gyro pilot- but I did stay at a Holiday Inn Express, so- Gyrocopters fly in a constant state of autorotation. Air flows UP through the rotor, not down as in normal (non autorotating) Helo flight. SOME gyros can prerotate the rotor to 110-130(ish)% of normal rpm while holding the blades at about zero angle of attack. When released, the blades go to their normal positive (fixed) pitch, the gyro jumps and starts going forward as rotor rpm decays to (hopefully) normal autorotate spd.

[123MATTYABC]

wow i love your abilitie to use wikipedia

jks

[MR41230]

Very interesting. Pls excuse my ignorance. Must the rotor 'spin up mechanism' be disengaged before lift-off? Thanks.

[MR41230]

I got my answer from reading all of the comments. Thanks to all..!! I am intrigued.

[madeljacky]

Yes it must be disconected or it turns into a helicopter with no tailrotor control and that is bad!!!

[Sofiepup]

whats the difference in having a 2 blade prop rather than three?

[madeljacky]

The results will be worth seeing when he does a jump start and his engine doesnt disengage from the top rotors!!!

[wesdh]

the engine isnt engaged to the rotors when he leaves the ground. he us's the engine to spin up the top rotor to high speeds, then he disengages it from the engine and pitches the blades to grab air.

[madeljacky]

Read my comment again. When his engine DOESNT disengage. You do understand what doesnt means i hope. I fly autogyros too and i know peferctly well how they work.

[kakashi789456123]

cool

[staviation]

wowee where do i sign

[ozielgza1]

awsome!

[mmdghr]

awsome !!!!

[lochinvar00465]

tchick (2 months ago)

Because I started video taping other aircraft and didn't see him land. Sorry.

Aircraft can do that to your brain. My high power rocket club was awed by a fully restored P51 taxiing past us. It was already down the runway and airborne before ANY of us realized that NONE of us had enough presence of mind to take pictures(most of us had cameras at the ready)

[stuga]

did that have a engine for the top rotor?

[TheRooster602]

what is different about this one that it can take off with no ground roll?

[Ekiller92]

dude a jump start is where it takes off vertically...notice the one in the background that takes off like a plane

[frostatola]

ok, so like what is going on here? I want one. What's with the jump start? Does he input full rudder?.......df

[professor1964]

É de dar inveja a muitos helicóptero por aí. Parabéns pela proeza.

[teampullmyfinger]

cool, blue skies.

[teampullmyfinger]

impressive but why not include the landing also?

[NorbPwn]

I guessing he had an engine to move the propeller, then turned it off, therefore removing the torque, then angle the propeller up to pruduce the lift? Am i right?

[ripcurl010]

so how do we buy one????

[domsantini]

never new they could do that

[cyberjoeone]

Impressionante gostaria de ter mais informações sobre o sistema que aciona o rotor principal para conseguir este efeito!

[FlyGyro]

Excellent shots of this seriously advanced rotorcraft.  With JTO and that radical climb-out, the helo makers should look to their laurels. It's good.