Astron Cobra

Monday, 4 May 2000
This is my first clone. I built it using the plans from the JimZ Site. This is also my very first cluster rocket. The only part about this project that is troublesome is obtaining the BT60 to BT50 transition piece. I ended up ordering a custom piece from Balsa Machining Service.
Monday, 5 June 2000
Finally finished it this weekend. All painted an ready to go! On second thought, this rocket could very well be to pretty to launch................ Nah.

Cobra Flights (3)
Date Flight #Motors Motor ISP Description
7/2/2000 44 3 B6-4 15 My first cluster launch ever! Probably my straightest and highest flight of the day. Tangled chute caused a hard landing. No damge. Need to use a B6-6 next time.
7/8/2000 57 3 B6-6 15 Woo Hoo! Very impresive take-off. High and straight . Six second delay is perfect. Landed just over the fence.
7/5/2003 61 1 B6-4 5 Only one engine lit due to operator error. I neglected to hook up the other half of the clip whip. Arced over the crowd and lawndarted into the mud with the motor still burning. Recovered with no damage

Total ISP: 35 newton-seconds

Average ISP: 11.67 newton-seconds

Cobra Flights (3)
Date	Flight	#Motors	Motor	ISP	Description
7/2/2000	44	3	B6-4	15	My first cluster launch ever! Probably my straightest and highest flight of the day. Tangled chute caused a hard landing. No damge. Need to use a B6-6 next time.
7/8/2000	57	3	B6-6	15	Woo Hoo! Very impresive take-off. High and straight . Six second delay is perfect. Landed just over the fence.
7/5/2003	61	1	B6-4	5	Only one engine lit due to operator error. I neglected to hook up the other half of the clip whip. Arced over the crowd and lawndarted into the mud with the motor still burning. Recovered with no damage

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Total ISP:	35 newton-seconds
Average ISP:	11.67 newton-seconds