Hi Heiko, yes, thats the only source for drag/lift curves I found about the R22 rotor airfoil (NACA 63-015). I am not using the X-Plane parameters; I just tried to get a similar shape of the drag/lift curves as X-Plane is using, but to limitations of the airfoil models there are differences (esp. if the blade is stalled).
I sent some modifications of the R22 FDM to Syd. I think I need to add some damage model to simulate mast bumping to the R22 (if Syd agrees). Maik Heiko Schulz schrieb am 05.11.2007 14:45: > Hi, > > for airfoil you could check X-Plane- They have a R-22, > and you can easiliy see the airfoils in their demo. > Problem could be the licence... > > Greetings > HHS > --- Syd&Sandy <[EMAIL PROTECTED]> schrieb: > > >> On Mon, 05 Nov 2007 04:08:23 +0100 >> Georg Vollnhals <[EMAIL PROTECTED]> wrote: >> >> >>> -------- Original-Nachricht -------- >>> Betreff: Re: [Flightgear-cvslogs] CVS: >>> >> data/Aircraft/R22/Models >> >>> R22.xml, 1.3, 1.4 paint1.rgb, 1.1, 1.2 r22.ac, >>> >> 1.3, 1.4 >> >>> Datum: Mon, 05 Nov 2007 03:18:06 +0100 >>> Von: Georg Vollnhals <[EMAIL PROTECTED]> >>> An: Syd Adams <[EMAIL PROTECTED]> >>> Referenzen: <[EMAIL PROTECTED]> >>> >>> >>> >>> Syd Adams schrieb: >>> >>>> Update of >>>> >> /var/cvs/FlightGear-0.9/data/Aircraft/R22/Models >> >>>> In directory >>>> >> baron:/tmp/cvs-serv13652/Aircraft/R22/Models >> >>>> Modified Files: >>>> R22.xml paint1.rgb r22.ac >>>> Log Message: >>>> 3d model updates... >>>> FDM updates... >>>> >>>> >>>> >>> Hi Syd, >>> >>> first just to mention, all what I report is only >>> >> meant as positive >> >>> feedback - if not wished, just tell me :-) >>> >>> a) Nice we have got another update. As for the >>> >> Robinson stick, it moves >> >>> "normal" like all other helo-sticks. >>> The crossbar is just for changing pilot control >>> >> right <-> left and can >> >>> be moved up down for optimal handgrip position. >>> In "our" R22 you coupled the crossbar movement >>> >> with the left/right stick >> >>> movement, that is wrong. The basic stick should >>> >> move into all 4 >> >>> directions (together with the crossbar and grips, >>> >> of course) >> >>> See nice video samples: >>> http://www.youtube.com/watch?v=MITIEVTF1Yg >>> http://www.youtube.com/watch?v=308DzvmYNiA >>> >>> b) to add to my review: >>> Autorotation is impossible and ground-forces move >>> >> the helo. I think this >> >>> is due to (wrong) counter-acting forces on the >>> >> helo/cabin although the >> >>> collectiv is fully down. (Maik, please, your >>> >> task???) >> >>> Regards >>> Georg >>> >> Hi Georg , no problem . >> I see what you you mean about the stick , I saw a >> still photo of one turned all the way to one side , >> didn't realise it was an adjustment , but now it >> makes sense ... >> Some other interesting things I noticed from the >> videos was more vibration than I expected .... >> ...a sideways rocking motion , same as the FG model >> but not as strong (because its so bottom heavy , I'm >> guessing ) .... and the pilot seemed to be using a >> lot of left pedal during slow flight .... so maybe >> the FDM is not too far off ... >> Im still looking for airfoil parameters , and >> eventually should be able to get this more accurate >> >> Another thing to mention is that it defaults to 2 >> 180 lb people at startup , and I've run across >> several documents that say the 2 person weight limit >> is 140 lbs per seat .... >> But thanks for the input .... its easy to overlook >> details with things like this :) >> >> Oh yes , the ground movement is a Yasim gear issue >> that I dont quite understand too well but I'll work >> on that ... >> >> Syd&Sandy <[EMAIL PROTECTED]> >> >> >> > ------------------------------------------------------------------------- > >> This SF.net email is sponsored by: Splunk Inc. >> Still grepping through log files to find problems? >> Stop. >> Now Search log events and configuration files using >> AJAX and a browser. >> Download your FREE copy of Splunk now >> >> http://get.splunk.com/ >> _______________________________________________ >> Flightgear-devel mailing list >> Flightgear-devel@lists.sourceforge.net >> >> > https://lists.sourceforge.net/lists/listinfo/flightgear-devel > > > > > Heute schon einen Blick in die Zukunft von E-Mails wagen? > www.yahoo.de/mail > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > Flightgear-devel mailing list > Flightgear-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/flightgear-devel > > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
