[Flightgear-devel] Re: [Flightgear-users] RE: Turbine Engine (Concorde, Hunter and Citation Information Needed)

2005-09-03 Thread Andy Ross
Vivian Meazza wrote:
 YASim has not yet implemented shut down/start up controls for
 gas turbines.  Therefore there are none for the Hawker Hunter.

As far as I can see, there is no generic implementation possible
for turbine startup and shutdown.  Everything would have to be
done specifically for each engine type.  Maybe the best thing to
do would be to expose some appropriate inputs to the engine
code (running or not, current RPM, station temperatures, etc...)
and implement the details per-engine in Nasal...

I'm wholely open to suggestions.

FWIW: why do people care about this stuff so much?  Engine
startup and shutdown is a boring, algorithmic, checklist task.
It's not exactly what I'd call fun, and it certainly won't ever
be implemented at a fidelity level useful for flight training.
What's the deal? :)

Andy

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RE: [Flightgear-devel] Re: [Flightgear-users] RE: Turbine Engine (Concorde, Hunter and Citation Information Needed)

2005-09-03 Thread Vivian Meazza
Andy Ross

 
 Vivian Meazza wrote:
  YASim has not yet implemented shut down/start up controls for
  gas turbines.  Therefore there are none for the Hawker Hunter.
 
 As far as I can see, there is no generic implementation possible
 for turbine startup and shutdown.  Everything would have to be
 done specifically for each engine type.  Maybe the best thing to
 do would be to expose some appropriate inputs to the engine
 code (running or not, current RPM, station temperatures, etc...)
 and implement the details per-engine in Nasal...
 
 I'm wholely open to suggestions.
 
 FWIW: why do people care about this stuff so much?  Engine
 startup and shutdown is a boring, algorithmic, checklist task.
 It's not exactly what I'd call fun, and it certainly won't ever
 be implemented at a fidelity level useful for flight training.
 What's the deal? :)

No idea. I suppose flameouts and relights could enliven a dull mission.
Then we could do compressor surge, and bird strikes ... nah, forget it :-)

Vivian 


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Re: [Flightgear-devel] Re: [Flightgear-users] RE: Turbine Engine (Concorde, Hunter and Citation Information Needed)

2005-09-03 Thread Dave Martin
On Saturday 03 September 2005 17:43, Vivian Meazza wrote:
 the deal? :)

 No idea. I suppose flameouts and relights could enliven a dull mission.
 Then we could do compressor surge, and bird strikes ... nah, forget it :-)

 Vivian

Would it be a first if FlightGear implemented a real-time AI flocking bird 
hazard? ;)

Dave Martin

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Re: [Flightgear-devel] Re: [Flightgear-users] RE: Turbine Engine (Concorde, Hunter and Citation Information Needed)

2005-09-03 Thread Lee Elliott
On Saturday 03 Sep 2005 19:02, Dave Martin wrote:
 On Saturday 03 September 2005 17:43, Vivian Meazza wrote:
  the deal? :)

  No idea. I suppose flameouts and relights could enliven a
  dull mission. Then we could do compressor surge, and bird
  strikes ... nah, forget it :-)
 
  Vivian

 Would it be a first if FlightGear implemented a real-time AI
 flocking bird hazard? ;)

 Dave Martin

Anyone got any bird 3-views?

;)

LeeE

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[Flightgear-devel] RE: Turbine Engine(Concorde, Hunter and Citation Information Needed)

2005-09-03 Thread Jim Alberico
 
  Would it be a first if FlightGear implemented a real-time AI
  flocking bird hazard? ;)
 
  Dave Martin

 Anyone got any bird 3-views?

 ;)

 LeeE


Not exactly a 3-view, but there is a well-done open source game called
Scorched3d that has 3D flocking objects amusingly called boids.  Boid
types are bat, seagull, AH-64, and F-18.  Go figure!  Each has a 3D mesh and
a bitmap skin.

These flocking objects have no role other than eye candy, but they are cool.
The whole game has lots of great eye candy and fun physics.

Jim A

(p.s., it's long evolved from the old Scorched Tanks game I used to play on
my Amigas years ago!!)


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Re: [Flightgear-devel] Re: [Flightgear-users] RE: Turbine Engine (Concorde, Hunter and Citation Information Needed)

2005-09-03 Thread Peter Stickney
On Saturday 03 September 2005 11:47, Andy Ross wrote:
 Vivian Meazza wrote:
  YASim has not yet implemented shut down/start up controls for
  gas turbines.  Therefore there are none for the Hawker Hunter.
 
 As far as I can see, there is no generic implementation possible
 for turbine startup and shutdown.  Everything would have to be
 done specifically for each engine type.  Maybe the best thing to
 do would be to expose some appropriate inputs to the engine
 code (running or not, current RPM, station temperatures, etc...)
 and implement the details per-engine in Nasal...

For the most part, starting a jet engine is a no-fuss, no-muss 
proposition.  You turn on the power, push the start button, and bring 
the throttle to the Idle Stop when it shows some small value of RPM.  
The fuel control takes care of the rest.  That's pretty much the case 
for anything but the first Me 262s/Meteors/YP-80s.  Occasionally you 
might have a fuel booster pump, or separate switch for the ignitors, 
but that's about it.
Unless you want to be logging Hot Starts and Wet Starts, there's 
nothing horribly inaccurate about just pushing the button or 
advancing the throttle, and a few seconds later it's idling at 10% 
thrust. (Somewhere around 35-40% RPM) 

-- 
Pete Stickney
  

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[Flightgear-devel] Re: Flightgear-devel Digest, Vol 28, Issue 43

2005-09-03 Thread Steve Knoblock
Digital autopilot.

With help from Roy Vegard Ovesen, I have managed to get the Digitrak
autopilot working in a minimal way. It will hold the heading you
select using the GPS to drive the autopilot. The files are available
at

http://www.city-gallery.com/vpilot/flightgear/

download the latest version (0.0.3). Let me know what you think.

Steve



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