> When this is done on the FG c150, the engine stutters (FDM program fuel > starvation on neg-G?) > > According to the HUD, it stutters at about +0.30G. > > In the real aircraft, we could make 0G manouevers that could last for a > couple of seconds without the engine missing.
In a real gravity-fed Cessna, there are 2 aspects relevant to the engine problems resulting from negative Gs that I was told about by the instructors. One is the fuel flow (tanks/carb/engine intake manifold) and the other is the oil flow that has gravity-induced return of the oil into the sump. If that stops, it's as disastrous as oil leak --- permanent damage can be done. (As opposed to just engine out due to momentary fuel absense which goes away as soon as one pulls back up and the gravity is restored). I have no clue as to quantitative charasteristics of the two and which one happens first. (Sorry I don't have time for more research at the moment). As for the clearing the climb path, I was told to do some gentle S-turns rather than pushing over the nose in order not to screw up the airspeed and hence the time-to-climb calculations, as well as be less nauseating for the passengers (of course, if executed in a properly coordinated matter). V. _______________________________________________ Flightgear-devel mailing list Flightgear-devel@flightgear.org http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
