AlphaOneSix

The governor doesn't try to hold the engine RPM, no. The governor tries to hold rotor RPM. (This is true when the throttle is set to its full right position). If the rotor RPM starts to drop (typically due to an increase in collective pitch), more fuel is introduced, and the engine RPM increases. If the rotor RPM starts to increase (typically due to a decrease in collective pitch), less fuel is introduced, and the engine RPM decreases. If the engine RPM reaches the limit for the electronic governor (101.15% for dual engine operation, 102.5% for single engine operation), then no additional fuel can be introduced, and the rotor RPM will begin to drop. If the pilot pulls excessive collective, the rotor RPM will drop because the engines cannot spool up fast enough to maintain the rotor RPM, but the engine RPM will definitely increase quite rapidly. I'm assuming that you're referring to the power synchronizer on the engine fuel controls. In which case each engine has one. Both engines connect directly to the main gearbox, so maybe you are referring to the main gearbox itself as the power coupler. While it's true that one engine is the driving engine and one engine is the driven engine, I think you're overestimating the difference between the two.

He's talking about engine RPM, not rotor RPM. DanielNL, the engines don't have a way to dump their power overboard if it's not needed, all of the power generated by the engines must, by design, be converted into rotor speed. If you reduce the power required by the rotor, the engine power must also be reduced, or else the rotor speed would quickly exceed its limits. This is managed automatically by the engine fuel control unit. Each engine's fuel control has an internal, mechanical governor that regulates engine power in order to maintain rotor speed at a certain value. An increase in rotor RPM results in a reduction of fuel introduced into the engine, and a corresponding decrease of engine RPM, just as a decrease in rotor RPM results in an increase of fuel introduced into the engine, and a corresponding increase in engine RPM. All in order to maintain rotor RPM at or near a prescribed value. Virtually all turboshaft engines work this way. There is no way to maintain a high engine RPM without that RPM being converted into excess rotor RPM. In fact, I'm at a loss to think of any engine at all that does not reduce its power output when the demand for power decreases, be it a car, a jet, or a helicopter.

I have quite a bit to say about that, but I'll just say I don't agree with your conclusion.

To make it official it would have to beat the Lynx record set back in 1986. I don't think that will ever be beaten by a conventional helicopter.

The Mi-24 that set the helicopter speed record had its wings removed to save weight. That speed record was beaten by a Westland Lynx, which was also a modified version. But even with the wings installed, the Mi-24 is still faster than most helicopters. Some production versions of the Mi-24 can outrun production versions of the Lynx, for example. I guess it depends on what source you're using for the speeds.

The rotor system on the Mi-24 is canted 2.5 degrees to the right (starboard). No other helicopter in DCS has a tilted rotor system to the side like this. The wings on the Mi-24 don't help at all with retreating blade stall, that's purely a function of rotor speed (specifically, at the rotor tips) and forward airspeed. The wings help with lift in forward flight, which does unload the rotor system and allow more power to be used for forward speed.

The inverter won't provide power and won't make any sound when it's off. If it does that in-game then that's a bug. Also, Off = always off, Manual = always on, Auto = on when main generators are offline, off when main generators are online.

It means the pumps are working. When a tank runs out of fuel, the light will go out.

I agree. However, I am also of the opinion that most actual pilots also do not have the experience to evaluate the FM in meaningful ways. I believe it, additionally, requires at least some knowledge of and experience with DCS in particular and PC-based flight simulation in general.

No, he meant Flight Engineer. That's what the Air Force calls Crew Chiefs if you're an Army-type person. There's more to it than that, but that will suffice.

AN/AAR-47 Missile Approach Warning System

Are you looking at rotor RPM? Sounds like you might be looking at engine RPM.

When the cockpit armor is installed, it usually includes armor plate for the sides of the engines, flight control servos, and the hydraulic compartment. The armor is basically just quarter inch steel plate.

I reject the premise that whiners need to be dealt with in the first place. Let them whine, I say!

This covers aircraft designations pretty well, although it can still be confusing: https://en.wikipedia.org/wiki/1962_United_States_Tri-Service_aircraft_designation_system For ground stuff like weapons and vehicles, "M" just stands for "Model".

Sadly the Cobra and the Apache don't share anything in common like the F-18 and F-16 do.

Already had it. It was abused. It went away.

Literally every turbine helicopter on the planet operates this way. If the rotor doesn't spin, neither does the N2 turbine in the engine. (EDIT: Now that I've made such an absolute statement, someone will find a way to prove me wrong)

Oddly enough, I've never seen a helicopter without a rotor brake. Granted, I'm referring to aircraft I've actually worked on, so it's a relatively small subset of helicopters. Rotor brakes are used, as Sandman1330 mentions, to slow down the rotor during shutdown. Different aircraft have different limitation on when you can start using the rotor brake. On the B412, for example, it's 40% rotor rpm. On the Mi-8, it's 12-20% depending on what it says in the flight manual. Some aircraft also use the rotor brake during start to keep the rotor from spinning during engine start, typically in heavy winds where the blades might flap too much before they build up enough speed. On the Mi-8, you can't start the engine with the rotor brake on, and we use the rotor brake routinely while the aircraft is parked if we don't tie down the blades. And also as Sandman mentioned, there is no wear on the mast, in all cases I've seen, the rotor brake is always attached to something hanging off the main gearbox. Usually just a disk brake that's geared into the main gearbox, but on the Mi-8 it's a drum brake attached to the tail rotor output shaft. Oh and you never, ever, increase rotor pitch angle to slow down the rotor blades...ever.

Yeah I thought I had read that a while back, just that I don't think they've shown pictures yet with the third pylon.

I've not yet seen photos that include Iglas, those are Vikhrs in the picture, on a 4-rail launcher.

There are more but I need to convert them, which is a bit of a pain because I used a lot of animations. Maybe that was a bad idea...

NOT CORRECT. The timing is how long the battery AND coolant lasts. Coolant is required for the seeker to...seek. Also I don't have any indication that the missile receives power from the aircraft, so I'm not sure that's the case, either. Just because something seems like it should work some way does not mean that it does. The launchers uses the same battery and coolant unit that the shoulder-fired version uses, just two per missile instead of one. The documentation for the launcher says that it's only good for 30/60 seconds. Whether that's because of battery or coolant is kind of irrelevant. Once you select A-A you have 30 seconds to engage your target, maybe 60 seconds depending on how you activate the second BCU. After that 60 seconds is up for all the missiles in the launcher, you might as well jettison them.

Yes, there are only two BCUs (Battery Coolant Units) installed per missile. Each is good for 30 seconds of use. I'm only guessing (that's okay because this thread is nothing but guesses) but the A-A switch probably pops a BCU. Or something along those lines.

When you select the Igla, you only have 30-60 seconds before you have to fire it, when that time is up, it's dead weight. The controller will go to the next missile, and again you have 30-60 seconds to fire it, or it too becomes dead weight. I wonder if ED will model this? I should add that you can either select the missile twice for 30 seconds each time, or 60 seconds once. If you select it, but don't use it, it's dead weight and won't work until you land and the magical thing nobody is talking about gets replaced. For an explanation, I would suggest Google or just head on over to the Russian-language side of the forum.