On a related note, I'd like to figure out how to make FlightGear more
useful
for ME practice -- I don't think either of the main FDM's does a very good job on single-engine, but I don't have any real experience to compare them with.
?? This is confusing on several fronts. You don't have any single engine experience?
Hi Jon,
I think what David meant was that for multi-engine practice, it's not really all that interesting to practice with both engines all the time. The real fun comes from practicing with only one engine running, or practicing when one engine dies at the worst possible moments. Sometimes the most optimistic objective is to hit the ground right side up. There are some real world effects that are important for training which I don't think we model well on existing twins.
The main one that comes to mind is that with an engine out there is a minimum speed you must maintain, or else the torque of the good engine will overcome the ability of the rudder to hold heading and you end up spiraling until you can get the nose down enough to pick up some speed. Not fun if you don't have any altitude to trade at the moment.
Also, speaking of FDM's. The current JSBSim C172 in cvs seems to have an engine that can break 3000 rpm in level cruise (150-160kts). That's clearly way too high for C172. I'm guessing from the engine rpm's that this is an engine or prop modeling problem???
Regards,
Curt. -- Curtis Olson Intelligent Vehicles Lab FlightGear Project Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED] Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org
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