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Dale,
The snippet below seems to indicate "at crank (excentric shaft) speed". I also don't know how to set the timing if not set to the e-shaft. You certainly can't drive a mag off a 2.85:1 anything as the mag would need an exact 1:1 or possibly 3:1 gearing/timing to the excentric shaft.
Bill Jepson
> ... I would rig up a drive for any real aircraft Mag and grind off two of the
points cam lobes and spin the Mag at crank speed with a little toothed belt.
...
So 8000 crank RPM / 2.85 = 2807 Prop RPM, which should be
within the capabilities of even an aircraft mag. ???
Dale R.
COZY MkIV-R13B #1254
Ch's 4, 5, 9, 16, & 23 in-progress
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