From the October 11 N.E.F.A.R. launch, I posted this picture and copy: I did a double take when I read the name on Scott Border's Ascender. Clever and funny.
The booster was a composite F51, the second stage was a black powder F15-8.
Perfect flight with a long pause before second stage ignition.
In the post comments, Lester Anderson asked:
"Did Mr. Scott Border offer up any information how he made that staging possible? I have never heard of someone staging a composite engine to a black powder one."
At the November 14 N.E.F.A.R. launch I asked Warren Scott Borders how it was done.
Warren said he cuts down the delay as far down as possible on the Cesoroni booster. Some extra loose black powder is added into the cap. Vent holes are punched into the booster to help upper stage ignition.
According to Warren, he's had great success using this method. Delays on composite engines are routinely shortened using a delay drill tool.
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