Flight Log - 2013-01-13 - Rich DeAngelis's Bullpup Iris

This be t' standard Estes Bullpup 12D kit, modified with a small payload bay betwixt t' forward fins and t' nose cone, and a engine mount pulled slightly rearward t' allow for a metal spring-clip for t' motor.  It is internally modified with a Keelhaul®©™ shock cord mount and a much longer shock cord.

Flight Date: 2013-01-13
Rocket Name: Bullpup Iris
Kit Name: Estes - Bullpup 12D {Kit} (007000) [1996-]
Flyer's Name: Rich DeAngelis
Motors: C6-3
Launch Site: Penn Manor School Lancaster PA
Actual Altitude: 473 Feet

T' Bullpup seems t' be plagued with problems with both altitude and recovery, so I wasn’t expectin' much out o' this flight.  I selected t' C6-3 as it seems t' be t' best engine for this model.  Also, shiver me timbers, bein' a small, white rocket, I didn’t want it t' go too far up in t' air on this foggy afternoon.

After a good ignition, t' rocket accelerated off t' rail at 8.1 Gs, averagin' 2 Gs for t' 2.2 second burn time.  This got t' rocket movin' at a respectable 95 mph, matey, followed by a 3.3 second coast time.  Although this particular motor delayed 3/10 second too long, arrr, it be still nay long enough as t' ejection fired at 462 feet while still coastin' up, causin' t' Bullpup t' come t' a stop 2/10 seconds later at a record height o' 473 feet.

T' parachute deployed into t' wind, but again for unknown reasons it didn’t fully open and as it fell it spun very fast and became extremely twisted up into a plastic wad, perhaps 100 or so turns on t' shroud lines.  It did fall at a slow 10 mph though and was nay damaged.  It landed about 250 feet downwind.  T' 35.6 second flight was a duration record for this rocket, as it had a bilge-suckin' history with recovery in t' past.  Murphy’s law: I wanted this t' be a low flight, and it went ahead and busted its own altitude record!  Out o' five successful launches, I only ever had one successful parachute recovery with this ornery rocket.

StageMotor(s)
1Estes C6-3

 

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