Srovnání modelu ve FS a X-Plane, cituji :
"Stability derivatives (MSFS) will typically say, "Okay, we are flying at Mach 0.8, so we add 5% to our drag due to compressibility,” in a situation where blade element theory (X-PLANE) will say, "Okay, we are flying at Mach 0.8, but the wings are swept at 45 degrees, and the plane is in a 5 degree right side-slip, so the effective sweep on the left wing is only 40 degrees, but the effective sweep on the right wing is 50 degrees, and the plane is rotating at 10 degrees per second to the right, so the advancing wing has an extra 10 knots of speed at the wingtip due to this rotation, but the retreating wingtip has 10 knots less speed due to this rotation, and the roll rate is 30 degrees per second to the right, which increases the angle of attack from nothing at the center of the plane to 2 degrees at the right wingtip and negative 2 degrees at the left wingtip, and the plane is pitching up at 10 degrees per second, which adds 1.5 degrees of angle of attack to the tail and takes away 0.1 degrees angle of attack on the main wing because it is in front of the center of gravity, and the changes in angle of attack cause increase in induced drag on the horizontal stab reduction in induced drag on the forward wing.”
... 9;-P
A asi nejdůležitější věc :
"Microsoft Flight Simulator cannot predict how an airplane will fly for the user. Whoever designed the airplane has to tell the simulator how the airplane should fly, and the simulator then spits that information back to the user—nobody actually learns anything. With blade element theory, though, used in X-Plane, a user can enter the shape of an airplane and then fly that plane in the simulator. X-Plane will figure out how a plane of that shape and weight and power should fly" |
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