This is an odd one.
Been using OR 15-03 for some time with good results. Love the software. Now working with 13 mm motors I'm getting some weird results with large CG changes between A3-4T and A10-3T.
The Estes Engine Chart shows the A3-4T having an initial weight of 7.6 gm. The A10-3T has an initial weight of 7.9 gm.
On an A10-3T I'm getting a stability of 1.79 calibre. If I change to an A3-4T I get a stability of 1.04 calibre. A stability reduction on a lighter engine.
Every 13 mm motor design I have shows the same behaviour. Version problem? Operator error? Alcohol induced operator error?
OR File attached.
TIA as always.
Been using OR 15-03 for some time with good results. Love the software. Now working with 13 mm motors I'm getting some weird results with large CG changes between A3-4T and A10-3T.
The Estes Engine Chart shows the A3-4T having an initial weight of 7.6 gm. The A10-3T has an initial weight of 7.9 gm.
On an A10-3T I'm getting a stability of 1.79 calibre. If I change to an A3-4T I get a stability of 1.04 calibre. A stability reduction on a lighter engine.
Every 13 mm motor design I have shows the same behaviour. Version problem? Operator error? Alcohol induced operator error?
OR File attached.
TIA as always.