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Old 04-16-2013, 06:02 PM
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BEC BEC is offline
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Join Date: Feb 2009
Location: Auburn, Washington
Posts: 3,020

Unfortunately Estes A8-3s tend to run a little short of 3 seconds.....the NAR cert data says 2.25s. But so do Quest A6-4s - at 3.52s (for the Chinese motors). So the A6-4 sounds right (though it's thrust curve will yield a lower altitude flight).
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
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