I made an Yasim-FDM for a piston-engine plane, like many before. Worked well so far. The plane is flying with reasonable characteristics. But there is one strange and annoying thing different to the others. If I switch of the engine via the magnetos the rpm is 0 immediately and the plane gets out of control when in the air. Normally the prop is spinning down for quite a while. Tried several things. But even when I stetting the moment up it stays that way. Checked the piston-engine tag several times, but couldn't find something wrong or unusual.
Any ideas?
Here is the engine tag:
- Code: Select all
<propeller x="3.844" y="0" z="-0.11341"
radius="1.425"
mass="780"
moment="18"
cruise-speed="87"
cruise-rpm="1400"
cruise-alt="5000"
cruise-power="174"
takeoff-power="204"
takeoff-rpm="1600">
<actionpt x="4.78532" y="0" z="-0.11341" />
<piston-engine eng-power="204"
eng-rpm="1600"
displacement="903.15"
alt="5000">
compression="4.6">
<control-input control="THROTTLE" axis="/controls/engines/engine[0]/throttle"/>
<control-input control="STARTER" axis="/controls/engines/engine[0]/starter"/>
<control-input control="MAGNETOS" axis="/controls/engines/engine[0]/magnetos"/>
<control-input control="MIXTURE" axis="/controls/engines/engine[0]/mixture"/>
</piston-engine>
</propeller>
f-(