From: Dave C. <dav...@co...> - 2006-04-06 16:25:51
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The air-ground.nas system assumes that the airplane starts on the ground. = =A0I=20 used this assumption to simplify things because air-ground.nas was my first= =20 attempt at Nasal system programming. =A0In order to get the spoilers workin= g=20 right for an in-flight start you might need to disable air-ground.nas in th= e=20 737-300-set.xml file. =A0I'll take a look at air-ground.nas and see if I ca= n=20 fix the limitation. BTW, as Innis covered in an earlier email, the air-ground.nas system was=20 something I wrote to model the autospoilers and autobrakes systems. =A0The= =20 model isn't exact, but it's pretty close. =A0To get a more exact model I'd = have=20 to include an antiskid system, and I'd also have to do it in C++ since I'm= =20 more comfortable with that. The current 737-300 model, with air-ground.nas activated, works like this. = =A0 The autospeedbrakes are disarmed, and the autobrakes switch (a 6-position=20 rotary switch) is in the RTO position. =A0This is the normal setup for take= off. =A0 If you reject the takeoff above 80 knots ground speed the ground and flight= =20 spoilers all come up, and the brakes go to maximum force. Once airborne you should select an autobrake setting for landing, either=20 "OFF", "1", "2", "3" or "MAX". =A0These settings are mapped to the property= =20 "/controls/gear/autobrakes" with values 0, 1, 2, 3, and 4. =A0AFAIK there i= s no=20 panel switch for this yet, so you have to set this in the property browser.= =A0 Prior to landing you should also set the autospeedbrakes by setting the=20 property "/controls/flight/autospeedbrakes-armed" equal "true". =A0Now when= you=20 land the ground and flight spoilers will come up. Dave |