This is an odd one.
Been using OR 1503 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 A34T and A103T.
The Estes Engine Chart shows the A34T having an initial weight of 7.6 gm. The A103T has an initial weight of 7.9 gm.
On an A103T I'm getting a stability of 1.79 calibre. If I change to an A34T 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 1503 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 A34T and A103T.
The Estes Engine Chart shows the A34T having an initial weight of 7.6 gm. The A103T has an initial weight of 7.9 gm.
On an A103T I'm getting a stability of 1.79 calibre. If I change to an A34T 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.
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