Bell UH-1

Everything in connection with developing aircraft for FlightGear
bell_pilot
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Joined: Sun Feb 07, 2021 2:53 pm

Re: Bell UH-1

Postby bell_pilot » Fri Feb 12, 2021 6:47 pm

pedals
Real Helicopter Pilot 1500+ flight hours
AB206,UH-1H,AH-1W
MSc. Aerospace Engineering

bomber
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Re: Bell UH-1

Postby bomber » Fri Feb 12, 2021 7:51 pm

now I understand.
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

bomber
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Re: Bell UH-1

Postby bomber » Fri Feb 12, 2021 8:52 pm

another question, still on tail rotor

Do you get to the point where you run out of anti-torque peddle and as such can only turn in one direction, going with the rotor torque ?
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

bell_pilot
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Re: Bell UH-1

Postby bell_pilot » Fri Feb 12, 2021 10:42 pm

Good question. It is called as "loss of tail rotor efectiveness".
It happens in high grossweight conditions, high rightside crosswind, other any high demand of power conditions.
You may check google for detailed, in better english details.
Real Helicopter Pilot 1500+ flight hours
AB206,UH-1H,AH-1W
MSc. Aerospace Engineering

bell_pilot
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Re: Bell UH-1

Postby bell_pilot » Fri Feb 12, 2021 10:44 pm

Bomber is exploring helicopter dynamics by just writing FDM.
Whatif he educated in flight mechanics?
His vision is so valuable.
Real Helicopter Pilot 1500+ flight hours
AB206,UH-1H,AH-1W
MSc. Aerospace Engineering

bomber
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Re: Bell UH-1

Postby bomber » Sat Feb 13, 2021 9:10 am

bell_pilot wrote: high rightside crosswind


I would have assumed high leftside crosswind with vortex ringstate setting in on the tail rotor

[edit]... yes high rightside crosswind will effect the advance ratio of the tail rotor prop reducing it's effectiveness. So I suspect both exist and maybe the right side is more of an issue due to the tail rotor being designed to be most effective at low rotational velocity, ie not yawing
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

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IAHM-COL
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Re: Bell UH-1

Postby IAHM-COL » Sat Feb 13, 2021 9:41 am

bell_pilot wrote:Bomber is exploring helicopter dynamics by just writing FDM.
Whatif he educated in flight mechanics?
His vision is so valuable.


If I recall correctly, bomber is a design engineer. So just you are on the right path.

I can't but follow this topic, but my intention is to fly the resultant... :)
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If we gave everybody in the World free software today, but we failed to teach them about the four freedoms, five years from now, would they still have it?

bomber
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Re: Bell UH-1

Postby bomber » Sat Feb 13, 2021 10:59 am

Another question on your set up.

Is your joystick capable of being a twisty ?

If so could you do me the favour of disconnecting your peddles and flying all the different types of helicopter flight models, not just mine.

I'd like you to do this, if you can so as you have a clear understanding of the requirements of flying a helicopter with a twisty.

regards

Simon
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell

bell_pilot
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Re: Bell UH-1

Postby bell_pilot » Sat Feb 13, 2021 4:46 pm

I dont have a twisty joystick, sorry.

For easy use with twisty joysticks, enabling auto-rudder would be a good solution.
Real Helicopter Pilot 1500+ flight hours
AB206,UH-1H,AH-1W
MSc. Aerospace Engineering

bomber
Posts: 1379
Joined: Mon Nov 30, 2015 3:40 pm

Re: Bell UH-1

Postby bomber » Sat Feb 13, 2021 4:50 pm

ok no worries.... I think I'm going to have to enable some auto rudder control for twisties, otherwise I won't even be able to test it.
"If anyone ever tells you anything about an aeroplane which is so bloody complicated you can't understand it, take it from me - it's all balls" - R J Mitchell


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