fly/fgdata
1
0
Fork 0
Code Activity

Update the attributes for <jet> and <propeller> from the YASim source

Browse source 
code, including a few guesses.
This commit is contained in:
david 2003-03-09 12:21:52 +00:00
parent 426631620a
commit 996baca8a6
1 changed files with 32 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
Aircraft-yasim/README.yasim
View file

@ -141,16 +141,29 @@ flap0, flap1, slat, spoiler:
angle by which the stall AoA is translated by the
slat extension.
jet: A turbojet/fan engine. Really cheezy right now, so there's
not much to set. It accepts a <control> subelement to map a
jet: A turbojet/fan engine. It accepts a <control> subelement to map a
property to its throttle setting, and an <actionpt> subelement
to place the action point of the thrust at a different
position than the mass of the engine.
x,y,z: The location of the engine, as a point mass. If no
actionpt is specified, this will also be the point of
application of thrust.
mass: The mass of the engine, in pounds.
thrust: The maximum sea-level thrust, in pounds.
x,y,z: The location of the engine, as a point mass.
If no actionpt is specified, this will also
be the point of application of thrust.
mass: The mass of the engine, in pounds.
thrust: The maximum sea-level thrust, in pounds.
afterburner: Maximum additional thrust from the afterburner,
in pounds [0].
rotate: Vector angle of the thrust in degrees about the
Y axis [0].
n1-idle: Idling rotor speed [55].
n1-max: Maximum rotor speed [102].
n2-idle: Idling compressor speed [73].
n2-max: Maximum compressor speed [103].
tsfc: Thrust-specific fuel consumption [0.8].
This should be considerably lower for modern
turbofans.
egt: Exhaust gas temperature at takeoff [1050].
epr: Engine pressure ratio at takeoff [3.0].
exhaust-speed: The maximum exhaust speed in knots [~1555].
propeller: A propeller connected to a non-turbocharged piston engine
The engine model is evolving, this element is likely to change
@ -169,9 +182,20 @@ propeller: A propeller connected to a non-turbocharged piston engine
propeller. Generally not the same as the
aircraft's cruise speed.
cruise-rpm: The RPM of the propeller at max-eff. cruise.
alt: The cruise altitude.
cruise-power: The power produced at cruise, in horsepower.
cruise-alt: The reference cruise altitude in feet.
eng-power: The brake horsepower at cruise.
eng-rpm: The engine RPM at cruise (for geared engines?).
takeoff-power: The takeoff power required by the propeller...
takeoff-rpm: ...at the given takeoff RPM.
displacement: The engine displacement in cubic inches.
compression: The engine compression [??]
turbo-mul: The turbocharger multiplier.
wastegate-mp: The manifold pressure to activate the wastegate
(inHG).
min-rpm: The minimum operational RPM.
max-rpm: The maximum operational RPM.
actionpt: Defines an "action point" for an enclosing jet or propeller
element. This is the location where the force from the thruster