Flight Log - 2011-08-13 - Jeffrey Gortatowsky's Big 70

My own design. Designed to be impressive in size and flight, makes great demonstration flights. 24mm Motors. Built with BMS balsa parts.

Flight Date: 2011-08-13
Rocket Name: Big 70
Flyer's Name: Jeffrey Gortatowsky
Motors: D15-4
Expected Altitude: 527.00 Feet
Wind Speed: 3.00 mph
Launch Site: Lucerne Dry Lake
Actual Altitude: 458.00 Feet

Great flight. Like the Osiris this was using a D15-7. But drilling 2 seconds of the Osiris resulted in a seven second delay! Grrr... This time I took the aft closure back off and drilled about another 3/32 off the supposed 2 seconds I had already done. That did the trick. Almost perfect 4 second delay and a great flight.

StageMotor(s)
1Aerotech D15T-4

 

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