Free Flight, Free Speech

https://forum.flightgear.org/viewtopic.php?f=17&t=38762 I think this is an interesting topic, especially for helicopters, where glancing at the gauges repeatedly is needed, and you don't really want to move the view cause a lots happening. I think I'd like a single key press to call this up and ...

Yes that would make sense, but it''s effect on the main rotor rpm's should be minimal. There is however rpm variations of the main rotor caused by it's governor 'hunting' the rpm's around the 324 value. My code used this value to govern the tail rotor rpm, which because of the increase in rpm's of t...

A lot of spanners got thrown into the machinery it's taking time to understand all the implications. And my understanding changes on a daily basis... Yesterday I thought the RPM of the tail rotor shaft was for torque, but after last nights work my thoughts are it's actually to ensure the rpm's of th...

Ok located that info here https://www.quora.com/How-does-a-helicopter-piston-engine-rotate-the-rotor-head 3 support bearings and 2 bevel gearboxes also given me speed of tail rotor rpm. [edit] oh wow I just found out the tail drive shaft is at 40,863 RPM... with the two bevel gearboxes reducing this...

Next question, you might be able to answer.

Typically how many universal joints in the tail rotor drive-chain.

I'm trying to work out it's efficiency.

So far I have this

gear box efficiency = 0.941
3 universal joints at 0.99
Angular take-off efficiency = 0.931

regards

Simon

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.

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 ...

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 ...

One of the issues with using 3d models is their accuracy, they're not engineering quality they're game quality.

Also they're not solid models they're surface models and I'm not sure if a surface can be converted into a solid model, normally it's done the other way.