Yeah, I was a little surprised at that myself, but at the same time, the MAV is heavy but not all that draggy (especially relative to the 1/200 Saturn V), so I would guess the momentum increase overcame the increased drag. As others have noted, and the cert data shows, the delays are a bit over 3s (a bit unusual for Estes motors).

I will be flying more of these motors (I have six more and will be ordering a larger quantity from AC Supply in the next day or two) so will be doing some more flying...and I almost always fly an altimeter aboard a model, regardless of what it is.

I MAY compare against older C5-3s, which were certified with 9.1 N-s of total impulse. But I am a little CATO-shy with the ones I have left....

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Bernard Cawley
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