RE: [Flightgear-devel] b1900d questions.....

2006-03-28 Thread Vivian Meazza
Martin Spott wrote

 Hello Syd,
 two points I would like to comment on:
 
 syd  sandy wrote:
 
  The flight dynamics seem a bit off , Im not sure if anyone modified them
  again , but it seems to want to stall at take off speeds...   I want to
  fix that , but I think someone may have tweaked it to be more accurate
  ... and I'm no expert in that area... if everyone thinks its ok I'll
  leave it alone.
  One more -  any votes on keeping or removing the popup GPS ? I
 
 Although the b1900d flies pretty nice, the stall behaviour is somewhat
 strange - _and_ after a stall there's almost no chance to recover, even
 if you are at high enough altitude. I have to admit that I'm not
 completely sure and I don't want to blame innocent people, still I
 suspect this is not a problem specific to the b1900d but to YASim
 aircraft in general.

I have not noticed this for other YASim aircraft, but I do note that the
approach aoa is 5 degs while the wing stall angle of attack (aoa) is 7.5
degs. The wing stall aoa number looks far too low to me, and being so close
to the approach aoa is likely to cause difficulties. Possibly a typo for
17.5 degs? Or perhaps it is correct ... just a thought. 


Vivian



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Re: [Flightgear-devel] b1900d questions.....

2006-03-28 Thread Lee Elliott
On Tuesday 28 March 2006 10:26, Vivian Meazza wrote:
 Martin Spott wrote

  Hello Syd,
  two points I would like to comment on:
 
  syd  sandy wrote:
   The flight dynamics seem a bit off , Im not sure if anyone
   modified them again , but it seems to want to stall at
   take off speeds...   I want to fix that , but I think
   someone may have tweaked it to be more accurate ... and
   I'm no expert in that area... if everyone thinks its ok
   I'll leave it alone.
   One more -  any votes on keeping or removing the popup GPS
   ? I
 
  Although the b1900d flies pretty nice, the stall behaviour
  is somewhat strange - _and_ after a stall there's almost no
  chance to recover, even if you are at high enough altitude.
  I have to admit that I'm not completely sure and I don't
  want to blame innocent people, still I suspect this is not a
  problem specific to the b1900d but to YASim aircraft in
  general.

 I have not noticed this for other YASim aircraft, but I do
 note that the approach aoa is 5 degs while the wing stall
 angle of attack (aoa) is 7.5 degs. The wing stall aoa number
 looks far too low to me, and being so close to the approach
 aoa is likely to cause difficulties. Possibly a typo for 17.5
 degs? Or perhaps it is correct ... just a thought.


 Vivian

I've been able to get out of /most/ stalls and spins, given 
enough altitude, but it's vital to ensure that the trims are 
centered, which is not likely to be the case if you've been 
using an autopilot.

LeeE



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Re: [Flightgear-devel] b1900d questions.....

2006-03-23 Thread Martin Spott
Hello Syd,
two points I would like to comment on:

syd  sandy wrote:

 The flight dynamics seem a bit off , Im not sure if anyone modified them 
 again , but it seems to want to stall at take off speeds...   I want to 
 fix that , but I think someone may have tweaked it to be more accurate 
 ... and I'm no expert in that area... if everyone thinks its ok I'll 
 leave it alone.
 One more -  any votes on keeping or removing the popup GPS ? I 

Although the b1900d flies pretty nice, the stall behaviour is somewhat
strange - _and_ after a stall there's almost no chance to recover, even
if you are at high enough altitude. I have to admit that I'm not
completely sure and I don't want to blame innocent people, still I
suspect this is not a problem specific to the b1900d but to YASim
aircraft in general.

Regarding popups, I don't generally object to popups but I think there
always should be the possibility to control an instrument without
having to use popups. This is my personal opinion,

martin.
-- 
 Unix _IS_ user friendly - it's just selective about who its friends are !
--


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Re: [Flightgear-devel] b1900d questions.....

2006-03-22 Thread Josh Babcock
syd  sandy wrote:

 One more -  any votes on keeping or removing the popup GPS ? I
 personally dont care for it myself, but it made testing much easier 
 I might as well try to fix as much as I can while I'm on a roll :).

I vote to put the clickable regions directly on the panel.

Josh


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Re: [Flightgear-devel] b1900d questions.....

2006-03-22 Thread Julien Pierru
same as Josh, clickable regions directly on the panel.Julien