gerard robin wrote: > On sam 8 décembre 2007, Melchior FRANZ wrote: > >> * Durk Talsma -- Saturday 08 December 2007: >> >>> Based on all the input sofar, I'd like to propose the following list of >>> aircraft for inclusion in the next release: >>> >> Looks good. Not trying to say anything particular -- just FYI: >> >> 20M 787 >> 20M A-10 >> 26M bf109 >> 3.2M bo105* >> 84K c172 >> 1.9M c172p >> 6.4M SenecaII >> 8.5M dhc2 >> 5.9M b1900d >> 12M Lightning >> 1.2M j3cub >> 13M seahawk >> 12M p51d >> 1.8M pa28-161 >> 13M bocian >> 600K ufo* >> 9.5M bleriot-XI >> >> + one of those >> 2.5M T38 >> 9.9M PBY-Catalina >> 17M SR71-BlackBird >> >> >> * ... a bit less, actually, as this includes files that only I have >> >> The bleriot is very nice, much nicer than the wright. But its FDM >> is a bit ... ummm ... well, the engine is quite powerful and the >> aircraft allows some aerobatics, which the real one probably didn't ;-) >> >> m. >> > > About the Bleriot i fully agree with Melchior, the FDM could "make laugh" > versus the Wright, > > However i am sure that somebody, here, very aware with YASim could could give > to that wonderful plane an FDM which is at the right level ( roll, lift, > engine power, may be drag). > > > I took a look at the bleriot-XI-yasim.xml last night. The dimensions in this file do not match the .ac file. After some time with google looking for specifications, I found a few very good sources. The wing span in the .ac file is for the final configuration, not the channel crossing configuration. The .ac has the 3 cylinder Anzani engine (rated 23 - 25 hp on various sites at 1450 rpm). Also the wing incidence in the specs is 7 degrees which the yasim solver had a lot of trouble doing. The cruise with this engine was only 36 mph and only 48 with the 50 hp gnome rotary. I also found the 22 mile channel crossing took 36.5 min which implies a 47 mph ground speed (10 mph tail wind perhaps).
Anyway, I was able to get much more realistic performance with some experimenting using the above data. I am not satisfied yet as I still cannot get sufficient elevator trim and convergence with the 7 degree incidence. I should have a satisfying config file by this weekend. I don't want to offend the originator of this beautiful model. So I ask, is it OK to submit a bleriot-XI-yasim.xml file that better matches the specifications ? -Dave Perry ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
