> > Changing topics slightly ... if anyone would like have a polite, > > fact-based discussion of the c172p, we can give that a try. Using > > the c172p model fresh from the rc2 package, I observe: > > > > release model rpm alt fps <-> fpm ktas kias throttle > > rc2 c172p 2711 1048 15.2 913 up 63.3 60.4 1 > > rc2 c172p 2714 5641 10.3 618 up 63.3 61.8 1 > > rc2 c172p *2738 10364 3.21 *192 up 60.0 59.9 1 > > > > If anybody thinks these numbers don't indicate a problem, please > > explain. The numbers marked with a (*) should raise red flags > > even for modelers who have never been near a real C172. Hint: > > What's the service ceiling for these critters?
The Cessna C172p manual I'm looking at shows: Avco Lycoming O-320-D2J 160 rated BHP at 2700 RPM McCauley propeller 1C160DTM7557 (75" diam) Skyhawk standard empty weight: 1427 lbs At 4000' (pressure altitude) and 2500 RPM @73% BHP the aircraft should be at 114 KTAS. At 2400 lbs and 10kft, at zero degrees C, the ROC is 225 ft/min at 71 KIAS. The manual should allow some fairly thorough testing. I cannot write anymore right now due to holiday activities. JB ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
