stray cat Posted February 18, 2014 Posted February 18, 2014 Very inexperienced DCS newb speaking, so... So far I gathered that there is a throttle and the collective. Throttle handling the engine power and collective handling the rotor speed. Is there any use in messing with the throttle during flight or do you simply need it during startup and do the in flight stuff with the collective?
Buzzles Posted February 18, 2014 Posted February 18, 2014 As I understand it, you don't touch the throttle in flight when the governer is on. Full throttle is needed to make the governer work. You should only need to use the throttle in flight if the governer breaks or you turn it off. Collective is your main control, although you can also use the governer controls to tweak rotor RPM. On the ground, yes, throttle is pretty much only used for start up. I'm sure some other people who are much more knowledgable than I can expand upon that. Fancy trying Star Citizen? Click here!
Lizzard Posted February 18, 2014 Posted February 18, 2014 Throttle handling the engine power and collective handling the rotor speed. Is there any use in messing with the throttle during flight or do you simply need it during startup and do the in flight stuff with the collective? I hope I am telling no bullshit here, but i would say the throttle sets the Engine RPM and the collective sets the Attack Angle of the Rotorblades (changing the amount of lift). Normaly you set the throttle to "full" prior take-off and leave it there all the time (if you have a heavy loaded chopper you should also set the governor to "emer" which increses the rpm even more) My Specs: I don`t care..it is a Computer..a black one..
Yurgon Posted February 20, 2014 Posted February 20, 2014 (edited) As far as I know, all helicopters have a very specific value (or range) for optimum rotor RPM. In case of our Huey, that value is Edit: 324 RPM (previously this read 6600 RPM, but that's turbine RPM... :music_whistling:) As was said before, the collective stick controls the blade pitch angle. Basically, when blade pitch is increased, more power is required to maintain optimum RPM, and when blade pitch is decreased, less power is required. It's the governor's job to maintain optimum RPM, so basically the pilot sets throttle to full during startup and the governor takes care of the rest. It's also quite easy to ask more power than is available - just increase collective to the full up position and watch the rotor RPM indicator drop. It's quite possible to get the low RPM warning this way. As far as I know, governors are usually found in helicopters with turbine engines. According to Wikipedia, the piston engine powered Robinson R22 features a governor in some models: To ease the pilot's workload, a mechanical throttle correlator adjusts the throttle as the collective pitch control is raised or lowered. The pilot only needs to make small adjustments by twisting the throttle grip on the collective throughout the flight regime. Later models are also equipped with an electronic governor which works to maintain RPM within normal operating limits [...] But coming back on topic: In the Huey, just set throttle to full during startup and set it to idle and then to the off-position when powering down. Outside of malfunction and emergency situations, there should be no reason to adjust the throttle in-flight. :thumbup: Edited April 11, 2014 by Yurgon Mixed up RPMs, thanks bart :)
Flamin_Squirrel Posted March 1, 2014 Posted March 1, 2014 As far as I know, governors are usually found in helicopters with turbine engines. According to Wikipedia, the piston engine powered Robinson R22 features a governor in some models The POH for the R22 seems to indicate that a governor is standard equipment. IIRC when you lift the collective, a mechanical linkage opens the throttle in most helicopters to provide the additional power that will inevitably be required; the governor is simply there for fine tuning the throttle. In fact in the R22, you can even feel the governor turn the throttle in your hand.
bart Posted April 11, 2014 Posted April 11, 2014 As far as I know, all helicopters have a very specific value (or range) for optimum rotor RPM. In case of our Huey, that value is 6600 RPM. 6600 rpm rotor speed :shocking: That's the turbine rpm that the governor will attempt to maintain. The optimum main rotor speed on our Huey is 324 rpm. 1 System :- i7-12700K 3.6 GHz 12 core, ASUS ROG Strix Z690-A Gaming, 64GB Corsair Vengeance RGB Pro 3200MHz, 24GB Asus ROG Strix Geforce RTX 3090, 1x 500GB Samsung 980 PRO M.2, 1x 2TB Samsung 980 PRO M.2, Corsair 1000W RMx Series Modular 80 Plus Gold PSU, Windows 10. VIRPIL VPC WarBRD Base with HOTAS Warthog Stick and Warthog Throttle, VIRPIL ACE Interceptor Pedals, VIRPIL VPC Rotor TCS Plus Base with a Hawk-60 Grip, HP Reverb G2.
Yurgon Posted April 11, 2014 Posted April 11, 2014 6600 rpm rotor speed :shocking: That's the turbine rpm that the governor will attempt to maintain. The optimum main rotor speed on our Huey is 324 rpm. D'Oh. I even knew the correct rotor RPM without checking the manual -- I simply mixed the two values up in my previous post. :doh: Post edited to avoid future confusion. Thanks for the hint. :thumbup:
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