On Sunday 23 December 2007 11:13:03 Martin Fenelon wrote:
> On Friday 21 December 2007 22:42, Dan Lyke wrote:
> [snip]
>
> > I took the c172p up to 500 feet, cut the engine, pulled all the way back
> > on the stick (yeah, I know, it's not authentic, but I have a stick, not
> > a yoke), and as the speed dropped to 50kts or so the plane started into
> > this sort of kite-like sink, but the ailerons were still pretty
> > responsive.
>
> The stall 'g' break of the real thing is certainly missing too. I can't get
> an 'autorotating' spin either.
>
> Martin

Some of the available models do a better job of modeling stall/spin/snap 
characteristics.  The PA24-250 is one example.  But most of the models 
currently available for flighgear do not do a good job of modeling 
stall/spin/snap characterisics.   Some aircraft should be particularly 
difficult to handle during a stall.  For example the P-51D has a very 
critical wing and should be very difficult to handle when a stall occurs.  
But it mushes stright ahead like a (very fast) trainer when stalled.  There 
is also no buffeting in most of the models when approaching stall.

On the other hand modern lower performance GA aircraft will in general have 
very forgiving stall charaterisics.  I have not piloted a C172 but I have 
spent some time flying a Piper Tomahawk.  In the Tomahawk if you enter a 
(non-accelerated) stall striaght ahead the ailerons will remain affective 
even after the stall is fully developed and you are sinking at 1000+ feet per 
minute with the yoke all the way back.   I suspect that the C152 and C172 are 
not too much different in this regard.  But a P-51D and most other high 
performance aircraft should not act this way when stalled.

Hal 

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