Aerodynamically, yes. The gear is interpolated from "all" to "none" over the retract-time specified. But you can't see that in the properties; all you get is the control position. David is right, we need to decide on a set of output properties for the actual surface positions.
Yes. kept scratching my head why I could not find the output positions. With the earlier gear version the EICAS display showed a "barber-pole" pattern while the gear was in transit and could report on all three gear positions. looks like that was lost with the change to properties when the class FGGear was removed from FGInterface. >From a distributed/network view point, it would be nice to have a set of control parameters variables that are received by fgfs, possibly mapped or transformed to aero surface actuators(actor_0, actor_1,...,actor_n), then some FCS modeling that results in movement of a corresponding aero surface (flap_0/aero_0, flap_1/aero_1....) whose value could be easily accesses and output to the network for displays, autopilots, whatever. Currently using the network stuff in native_ctrls.cxx for input and opengc.cxx for output. If I knew more about how the properties work ... Oh, what the heck, I'll give it a shot...If not 0.7.9 then maybe the next. Any comments, guidance, suggestions are welcomed. > > Oh, and apropos of the 747, I tried it again last night and reproduced > the power bug that you and Jim Wilson reported. I haven't a clue, > although I know it used to work (I distinctly remember cruising at > 36000 ft.). I must have broken something, probably in the engine > model; I'll take a look. > Here is some engine data and flight conditions derived from another 747 sim. These are pretty close to real numbers At 80 kts, (TOGA setting power) EPR 1.44 1.44 1.44 1.44 N1 103.4 102.3 103.4 104.1 EGT 631 632 631 629 N2 94 93 94 94 F/F 16.1 16.1 16.1 16.1 Oil press 110 110 112 111 Oil temp 49 48 49 50 At 2000 ft 230ts 2000fpm climb rate EPR 1.45 1.45 1.45 1.45 N1 103.9 102.8 103.9 104.9 EGT 637 639 637 635 N2 94 94 94 94 F/F 16.1 16.1 16.1 16.1 Ot 112 110 112 113 Ot 92 91 92 93 At 5000 ft 270 kts 2000 fpm up 1.39 1.39 1.39 1.39 101.6 100.6 101.6 102.6 636 638 636 634 92 92 92 92 13.8 13.8 13.8 13.9 At 10,000 267 kts 3000 fpm up 1.40 1.40 1.40 1.40 101/6 100.6 101.6 102.6 635 637 635 633 92 92 92 92 At 15,000 310 kts 1.41 1.41 1.41 1.41 102.5 101.5 102.5 103.5 93 93 93 93 11.1 11.1 11.1 11.1 112 110 112 113 139 139 139 140 At 20,000 310 kts 2000 fpm climb 1.43 1.43 1.43 1.43 102.4 101.5 102.4 103.4 636 638 636 634 93 93 93 93 11.2 11.2 11.2 11.2 At 25,000 310 kts 2000 fpm up 1.43 1.43 1.43 1.43 102.5 101.5 102,5 103.5 636 637 636 634 93 93 93 93 112 110 112 100 141 140 141 142 At 29,000 1.30 1.30 1.30 1.30 618 619 617 616 88 88 88 88 6.4 6.5 6.5 6.5 Initial cruiise At 33,000 310 kts (.872mach) EPR 1.43 1.43 1.43 1.43 n1 102.1 101.1 102.1 103.1 EGT 633 635 633 632 N2 93 93 93 93 F/F 8.1 8.1 8.1 8.1 OIL P 111 110 111 112 OIL T 140 137 138 138 > Data for 15,000 ft, 320 kts, level flight: EPR 1.17 1.17 1.17 1.17 N1 91.0 91.0 91.0 92.0 EGT 559 559 559 551 N2 83 83 83 83 FF 4.8 4.8 4.8 4.8 Oilp 101 101 100 100 Olit 71 71 70 71 Idle descent from 15k to 10k 250 kts EPR all 0.98 N1 22.7 22.7 22.5 23.1 EGT 318 318 316 319 N2 64 64 64 65 FF 1.1 1.1 1.1 1.1 Level 10,000 250 kts EPR all 1.11 N1 86.7 86.7 85.8 88.0 EGT 513 512 515 520 N1 all 79 FF all 4.5 oil press all 94 oil temp all 77 got these from jim at kingmont.com. Regards John W. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
