Can a Toucan hover?
 

My guess is it will :)
Sorry for posting it! but Hay "It is Exciting".

Turbo Prop Biplane 1.5:1 Thrust to weight.
http://www.turbinetoucan.com/homepage/img-download.jpg
http://www.turbinetoucan.com/
I am keeping my eye on this one, (I might even plan a trim to the US next year, just to get a good look at it)

how's this.
8400 Feet Per Minute and NOT AT FULL POWER!!!!!!!!
http://www.turbinetoucan.com/


Ok., Did you get that link :)

Just because it can accelerate straight up, doesn't mean it can hover.

I expect that if it did manage to come to a zero vertical rate of climb it would have no lateral control and that it would start to rotate pretty quickly as the ailerons would be ineffective.

Can a Toucan hover?


If anything can, a Toucan can!

Yes, but beauty isn't usually a good indicator of ability!

They could possibly be a little more relaxed than a nocan, but any more than 3 cans will begin to degrade the ability to hover.

I wonder how much the spiral flow will cause it to rotate right ?


I was also wondering if the ailerons were inward enough to be in the Flow so as it could still have roll control.
When I looked at the pics and the size of the prop, I came to the conclusion that it will still have some roll control. but if they want more. all they need do is add a couple aileron extensions that bring some control surface in close to the fuselage.


Personally. I think they should have done it on an Edge 540 style monoplane (with Turbine implant). that things wings are dead on line with the thrust line and with some inner Aileron extension modifications(Flaperon).
But like they say. The Biplane is nostalgic.

Had a pilot working for me once, don't remember his name, but his nickname given him by some of the hard case rangers that he flew with was "toucan."

They reckon he would never be able to hover.

why would it not be able to hover? if a model one can...

That was my thought, but then model helicpters can fly inverted.

Turbine Toucan
 

Greetings All,

I was actually pointed to your thread about the Turbine Toucan, so I thought I would stop by and say hello. I actually own the aircraft. And it hovers beautifully I might add.

If any of you have ever seen Sean Tucker or the late Jim LeRoy, you'd know they perform a maneuver called the Harrier. Now, neither quite hovers due to the lack of thrust to weight performance but they can simulate it with virtually no forward speed and total control of the aircraft.

Remember, we have 4 large ailerons that almost come into the fuselage, so we have plenty of authority. The thrust developed by the 100” four blade prop is carried well over the ailerons, so vectoring the thrust is no issue. We also have high deflection angles with the ailerons as well. Oversized rudder/vertical stab and oversized elevator/horizontal stab give us far greater control laterally.

We are not in uncharted territory. Only one other propeller driven, fixed wing aircraft was ever built that managed to hover then accelerate out of the vertical straight up. The name of the aircraft was the Turbo Raven, flown by legendary Wayne Handley. Take a look at the link http://www.waynehandley.com/archive.html

We’ll be posting video of the Turbine Toucan doing it’s thing in the coming weeks, so we invite you to come by and check it out once the video is posted. For you who haven’t seen the aircraft, please come on by, we’d love to see you on the site!

Any questions please fire them my way on the website at [email protected]

David Kervinen

Thank you David for Replying to this thread.
To assist you.
I also placed it in two other Sub forums. due to similar relevance.
Private Flying http://www.pprune.org/forums/showthread.php?t=293589
Flight Testing http://www.pprune.org/forums/showthread.php?t=293593

I have been telling a lot of Pilots about your Endeavors and success to date. and the most common issue and question is. Un controllable torque at high power.

Personally. I have not found the perfect answer. but I was thinking along the lines of No Problem due to ;
1/ Inline turbine produces negligible torque back to the Fuse (IE just bearing frictions, and slipstream opposite)
2/ you have the full length Ailerons x4 that are within the Prop thrust thus providing control (Thrust vectoring)

No 2 I am sure of. But No1. I am still confused.
would you say
NO. she would roll you over if you took off with what ever power would allow you to scream down the runway with the Plane attached.
Yay,No problem with power/pitch application and the torque roll without enough airspeed over the wings/Ailerons.

See my confusion : ) (only due to my own lack of experience and Education :) )

Thanks Again
Bryce.

I think this only works if the turbine is mounted on bearings, so it spins in the opposite direction of the propeller. Kind of like those little free flight helicopters, bell 47 body, 4 bladed rotor, and a little cox motor mounted on the top of the rotor. Otherwise all that torque will be resolved at the mounts of the turbine to the airframe, and canceled by the moment generated from the ailerons.

-- IFMU

PS I wouldn't mind owning a turbine toucan when I grow up!

Check this video out, it is Wayne Handley and the Turbo Raven. If you watch it, at the end you'll see the virtical stop and go! So the hover is not an issue. Enjoy the video!

http://www.kbvp.com/extreme-videos/w...n-moffet-field

Very impressive.

However, if the Toucan were in the hover at 5ft above the ground I guess his powers of recovery are limited in times of engine failure!

Might be interesting to know what the "avoid curve" would be like for this aircraft.

I see Toucans every day at work....
They can't hover....
The only bird I ever saw really hovering is the Hummingbird (Colibri).
That little guy also can fly backwards....

3top

PS: Now if you strap a turbine onto that little flyer it probably goes Mach 1 too...