ka50 goes out of control

[EtherealN]

Does the sim model mountain effects on RVRS?

 

What do you mean by "mountain effects"?

 

If you mean cushioning when being a split second from impacting the ground, yes, ground effect is modeled. If you mean the impact of thinner air on the dynamics of RVRS entry, yes.

[adam12]

What I meant is natural airflow up the hills.

 

It's something I read here: http://helenkrasner.suite101.com/vortex-ring-state-a51416

 

"The approach to off-airfield confined areas is another situation where vortex ring can easily occur. Again, there is often a high workload, the airspeed is likely to be low, and the pilot may have to approach downwind or not even be sure of the wind direction. There are a few less common times when vortex ring can occur; according to an experienced mountain pilot, up-flowing air in the hills can give the same situation as being in a descent. It should also be noted that conditions for vortex ring can differ depending on weight, density altitude, and helicopter type. It can also occur occasionally without warning. It is therefore something of which helicopter pilots should always be aware."

[adam12]

I'm curious what you guys think of the statement bolded.

 

It's not something I've been able to cross-reference anywhere else (yet)

[power5]

Wind on the windward side is smashing into the mountain at whatever its airspeed is. This can easily push a helicopter down.

 

I also thought the radar altimeter went to 300agl?

[EtherealN]

I'm curious what you guys think of the statement bolded.

 

It's not something I've been able to cross-reference anywhere else (yet)

 

Depends on the situation, but if you are transitioning into a body of air that is flowing in that manner, I agree that it should be capable of causing such effects. I'd expect this effect to require you to be fairly close to the mountain though.

 

As a note as well: you do NOT need "wind" for this to happen IRL. Sunlight is enough. (The sun-side of the mountain gets hot, heats the air, and this air starts ascending but some liquid dynamics peculiarities causes it to "follow" the side of the mountain - sort of like the Quanda(sp?) effect I think.

 

So yes, I buy it. I'm not 100% certain to which level DCS:BS models it though - probably not. And for the sun example - very likely not. (There's no genuine thermal flow simulation for the atmosphere as far as I know, and no Quanda effect, so that one isn't there.)

[adam12]

o which level DCS:BS models it though - probably not. And for the sun example - very likely not

 

Nevertheless very interesting to learn about. Thanks for the feedback.

[XarBat]

There are a few instances when in a hover during cold weather with all the heating switches on; the autopilot stability channels will shut off after x amount of minutes. Anyone know exactly why this is?

[Nate--IRL--]

There are a few instances when in a hover during cold weather with all the heating switches on; the autopilot stability channels will shut off after x amount of minutes. Anyone know exactly why this is?

 

No Idea why, but if you could get that in a short track I'd be grateful.

 

Nate

[adam12]

There are a few instances when in a hover during cold weather with all the heating switches on; the autopilot stability channels will shut off after x amount of minutes. Anyone know exactly why this is?

 

Impossible to know without the track, but could you be experiencing an electrical problem? Maybe too much drain?

[XarBat]

If I use time acceleration while playing, will it mess up the track?