WHy lol

[52niner]

Not to offend any of my comrades in the former soviet union but why the heck would they make this thing so hard to fly? When I'm at low speeds or trying to hover, I'm constantly having to adjust the trim because the rudder goes left or right , then it goes right to left but I do a better job hovering on my own then the damn autopilot. Any ideas why the rudder is acting crazy?

[EagleEye]

Better engage the hover mode when you are near a full stop. When you hit the hover mode button the autopilot wants to fly to the exact position where do you engage the hover mode.

If that is not the case, then you may have select the wrong waypoint and the helo is trying to face you to the next waypoint. When the target computer is switched to "auto turn on taget" the helo will align to you`re Shkval target point.

 

EDIT: Some times I disable the Heading Hold stabiliser, if I don`t want that the helo is trying to hold the heading...

Edited August 28, 2009 by EagleEye

[My Fing ID]

I still can't figure out why the AP does some weird stuff at times. Sometimes I'll hit the Auto Hover and my copter will start spinning wildly or suddenly pitch forwards 30+ degrees. My AP buttons I've noticed are flashing at this time. Usually I just have to kill the AP all together and try to hover while I re-engage. This usually happens after I've been doing some fancy maneuvers and yes the FD is off.

[Nate--IRL--]

If your rotor speed drops low enough (during these fancy manoeuvres), the electrical generators do not produce enough power, momentarily shutting off the autopilot system. You know this has happened by the buttons flashing as the systems are now disengaged.

 

Nate

 

Edit:- Also consider assigning a button to engage/disengage the Heading hold, this is much easier that using the trim when changing heading. Disengage - change heading to desired direction - re-engage - Trim is unaffected. Alternatively Fly with the Flight Director on all the time.

Edited August 28, 2009 by Nate--IRL--

[BKLronin]

Theres always a reason why something goes wrong in the KA 50. 9 times out of 10 it´s the Pilot :D. Takes time to learn all the dependencies.

[My Fing ID]

I like the FD for strafing, but flying around I use the AP. I guess I'll have to be a big more gentle and plan my hover points farther out. Usually I just pull up and drop the collective like a rock. After that I'm at about 50 kph so I just slow down to as close to 0 as I can and hit the AH. Usually works, it's just sometimes it doesn't, almost always after a strafing run. TY.

 

Hey, is there a way I can tell where my power's at, well other than systems restarting like the Shulka or whatever the targeting system's called? I see the power gauge move when I turn on my batteries but I never see it move past there.

[Nate--IRL--]

If you hear the Rotor speed warning (yellow light flashing), consider it a warning of imminent power failure among other things. Adjust your flying to get rid of the warning, usually dropping some collective will do this.

 

Also if the FD is on you can't auto hover. FD must be off for AH.

 

Nate

[Martillo1]

From medium to high speeds, the aerodinamic forces help to keep the desired heading. However at low speeds its more a matter of rudder.

[159th_Viper]

Not to offend any of my comrades in the former soviet union but why the heck would they make this thing so hard to fly? ?

 

Well-Known issue........;)

 

..............

 

 

..................

 

 

 

.......................

 

 

 

Called Pilot-Error :thumbup:

 

 

Not to worry though - Trust me, we've all been there and bought the T-Shirt.........Nothing that Flight-Hours won't cure :joystick:

 

 

:pilotfly:

[Itkovian]

Just a question from someone who just got the game and is only starting the process of RTFMing (I also ordered a hard copy, so for now I'm being more casual about it, and trying to figure basics out - like how my FF stick needed to have its FF axis reverse for trimming to actually make sense *Grin*):

 

Why exactly does the yellow light start flashing when I max out the collective?

 

I thought it was something about overstressing the engines or some such, but you are saying it is more about low rotor RPM causing loss of generator power? Could anyone explain how this is happening?

 

Too much angle of attack on the rotor blades, causing too much drag and slowing down the rotor?

 

Itkovian

[159th_Viper]

 

Why exactly does the yellow light start flashing when I max out the collective?

 

 

You are exceeding your Maximum allowed Rotor RPM - 98%. If you have a look at your Rotor RPM Indicator, you'll see a wee Red Line to the left of the '10' - you are exceeding that mark when you Max your collective - Bad things Happen then......;)

[Waldo_II]

You are exceeding your Maximum allowed Rotor RPM - 98%. If you have a look at your Rotor RPM Indicator, you'll see a wee Red Line to the left of the '10' - you are exceeding that mark when you Max your collective - Bad things Happen then......;)

 

 

It is more likely that he is going lower than the minimum recommended rotor RPM if he is maxing out the collective. Higher collective means more resistance on the rotors which means rotor speed, ultimately rotor RPM, is down.

 

Going under the minimum recommended rotor RPM is alright for a little while if the reason for the low RPM is high collective. I figure that the amount of lift being provided is compensating for the lower RPM, unless someone here can correct me.

[Itkovian]

So under which circumstances is max collective a good idea?

 

Thank you.

 

Itkovian

[159th_Viper]

It is more likely that he is going lower than the minimum recommended rotor RPM if he is maxing out the collective. Higher collective means more resistance on the rotors which means rotor speed, ultimately rotor RPM, is down....

 

Quite Right - seemed to have suffered a minor Brain-Drain there......

 

Ta for the Correction :)

[Nate--IRL--]

Just a question from someone who just got the game and is only starting the process of RTFMing (I also ordered a hard copy, so for now I'm being more casual about it, and trying to figure basics out - like how my FF stick needed to have its FF axis reverse for trimming to actually make sense *Grin*):

 

Why exactly does the yellow light start flashing when I max out the collective?

 

I thought it was something about overstressing the engines or some such, but you are saying it is more about low rotor RPM causing loss of generator power? Could anyone explain how this is happening?

 

Too much angle of attack on the rotor blades, causing too much drag and slowing down the rotor?

 

Itkovian

 

It is more that the automatic throttle is not able to increase the engine power quickly enough, to compensate for the increase drag on the rotors. This leads to the rotors being underpowered until the engines catch up. This gives the low Rotor RPM warning (the yellow light). This can also happen when the engines can't produce any more power. (Max engine power = two yellow lights on the over head console).

 

Since the electrical generators are run off the rotor, too low an RPM will result in too little power being generated. Also at Low rotor RPM, blade strike is much more likely as the blades can deflect more due to lower rotational velocity.

 

Nate

[vortex360]

Not to offend any of my comrades in the former soviet union but why the heck would they make this thing so hard to fly?

 

If an enemy like Somalia or Afghanistan got ahold of one they'd have an impossible time utilizing the weapon.

[L4key]

So under which circumstances is max collective a good idea?

 

Thank you.

 

Itkovian

 

 

About 20m from the ground in a vortex! :doh::lol:

 

You can do what you like then it ain't gonna make much difference...

 

Seriously though I have always wondered why the aircraft lets you over-power by so much!

[nemises]

So under which circumstances is max collective a good idea?

 

Thank you.

 

Itkovian

 

No,

If the rotor RPM is dropping due to the increased resistance caused by raising the collective, then you need to lower the collective in order to reduce drag, and allow the rotors to get upto speed again.

 

It is very very dangerous to decay rotor RPM when close to the ground for this reason!

 

Rotor decay can happen when you emergency stop (ie. pull the nose up), or if you add to much collective too quickly, or (if you are Frazier) are in teh middle of some high G manuever like a loop.

 

If RPM gets too low, as well as dropping from the sky, you will also stop generating AC power (DC power thankfully comes from the batteries)...so any gear that runs on AC (ie a lot of stuff!) will drop off...... Most of the super vital stuff is DC thanksfully, but still, can be a bit of a shock.

 

*edit*

As someone above has also said, the Other yellow lights that go on (above your head) are the LH and RH max power lights, which mean (again) that you are pulling too much collective...In this case though, rather than rotor RPM decay beeing the issue, it is engine temeprature (or to be precise engine exhaust gas temperature)......these yellow lights come on to warn you that the EEG's (electronic engine governors) are reducing horsepower to the enigines to cool them down....if you fly "in the yellow" for too long, you can get engine failure.

 

In both cases, you need to lower collective a bit untill teh yelklow lights go off ... this might mean you also have to nose up a bit to keep level flight (and therefore slow down a bit)....these things usually happen when you are trying to fly too high or too fast!

Edited August 28, 2009 by nemises

[Itkovian]

It is more that the automatic throttle is not able to increase the engine power quickly enough, to compensate for the increase drag on the rotors. This leads to the rotors being underpowered until the engines catch up. This gives the low Rotor RPM warning (the yellow light). This can also happen when the engines can't produce any more power. (Max engine power = two yellow lights on the over head console).

 

Since the electrical generators are run off the rotor, too low an RPM will result in too little power being generated. Also at Low rotor RPM, blade strike is much more likely as the blades can deflect more due to lower rotational velocity.

 

Nate

 

Thank you for the info. :)

 

This brings up another question, which is more an extension of my ignorance of Things Rotary:

 

Blade strikes? You mean something like an the upper rotor blade hitting a lower rotor blade? They can flex that much?

 

Itkovian

[GGTharos]

Yes. There's at least one fatal accident caused by blade strike in the history of Ka-50 - specifically when the helicopter was being demonstrated by a Kamov pilot I believe.

 

The incident was even posted on youtube, but I don't have the link handy.

[159th_Viper]

 

Blade strikes? You mean something like an the upper rotor blade hitting a lower rotor blade? They can flex that much?

 

 

Here's a Pic........Close but still OK :)

 

 

[Itkovian]

And what kind of maneuvering brings about something like that?

 

Itkovian

[L4key]

In my experience anything too 'jerky' with the collective high.

 

Try yanking the stick fully back and right at 250 kmh! Does it for me every time. :joystick: <-- what he's doing!

[Itkovian]

It's pretty amazing that it's even possible. Do single rotor aircraft have similar issues?

 

Itkovian

[L4key]

...Issues of hitting their counter rotating twin rotor they don't have? Arf! Probably not! Really, Itkovian, that was worse than one of my questions! :lol: