Semroc - Defender

Attributes

Manufacturer:

Semroc

Reviews

• Semroc - Defender By Chan Stevens (June 8, 2007)
• Semroc - Defender By Craig Zicafoose (April 26, 2007)

Rocket Gallery

• Hans "Chris" Michielssen's Defender
• Craig Zicafoose's Semroc Defender
• John Lee's Semroc Defender
• Chan Stevens's Semroc Defender

Blog Posts

• Chris Michielssen's Model Rocket Building Blog
• Semroc Defender Build Part 1 Parts (2011-11-08)
• Saturn 1 and Defender Comparison (2011-11-09)
• Semroc Defender Build Part 2 Balsa Parts Prep (2011-11-09)
• Semroc Defender Build Part 3 Parts Prep (2011-11-10)
• Semroc Defender Build Part 4 Engine Tube Gluing (2011-11-11)
• Semroc Defender Build Part 5 Paint Plan (2011-11-12)
• Semroc Defender Build Part 6 Adapter Filling (2011-11-13)
• Semroc Defender Build Part 7 Adapter Filling (2011-11-13)
• Semroc Defender Build Part 8 Centering Ring and Kevlar (2011-11-14)
• Semroc Defender Build Part 9 Fin Strips (2011-11-15)
• Semroc Defender Build Part 10 Fitting Fin Strips (2011-11-16)
• Semroc Defender Build Part 11 Fitting Fin Strips (2011-11-16)
• Semroc Defender Build Part 12 Large Fin Gluing (2011-11-17)
• Semroc Defender Build Part 13 Painting The Fin Can (2011-11-18)
• Semroc Defender Build Part 14 Nose Weight (2011-11-19)
• Semroc Defender Build Part 15 Upper Mask (2011-11-20)
• Semroc Defender Build Part 16 Fin Can Mask Part 1 (2011-11-21)
• Semroc Defender Build Part 17 Fin Can Mask Part 2 (2011-11-22)
• Semroc Defender Build Part 18 Fin Can Mask Part 3 (2011-11-22)
• Semroc Defender Build Part 19 Fin Can Mask Part 4 (2011-11-23)
• Semroc Defender Build Part 20 Assembly (2011-11-24)
• Semroc Defender Build Part 21 Assembly (2011-11-25)
• Semroc Defender Build Part 22 Ends and Edges (2011-11-26)
• Semroc Defender Build Part 23 Decals (2011-11-27)
• Semroc Defender Finished! (2011-11-28)
• Launch! NEFAR Monthly, Bunnell, FL 12/10/11 (2011-12-11)
• Defender Post Flight 3X C6-7s (2011-12-20)
• Friction Fitting Engines Part 2 (2012-02-04)

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Flight Log

Date	Rocket Name	Motor(s)	Altitude	Notes
2007-04-22	Craig Zicafoose's Semroc Defender	3xB6-6	-	On a wire the whole way up. Coasted for what seemed like forever after the boost phase. Ejection...
2007-06-01	Chan Stevens's Semroc Defender	3XB6-4	-	Lit all 3, altitude at least 800
2007-07-17	John Lee's Semroc Defender	3XA8-3	-	My first cluster flight and it went straight and true. Not even the barbed wire fence could mess...
2007-08-25	John Lee's Semroc Defender	3XA8-3	-	1 motor did not ignite; this rocket needs all three when using A8s. Used only a single 12 chute...
2007-08-26	John Lee's Semroc Defender	3XA8-3	-	This time they all fired and everything looked good. I am ready to try this one with Bs.
2007-10-14	John Lee's Semroc Defender	3XB6-4	-	Great flight
2008-09-20	John Lee's Semroc Defender	3XC6-5	-	Beautiful boost but chute stripped at ejection. Recovered as a nose blow. One fin damaged.
2011-11-13	Hans "Chris" Michielssen's Defender	3x B6-6 Cluster	-	After 42 years of launches, here's my first three engine cluster! The Semroc DEFENDER was fast...
2011-12-17	Hans "Chris" Michielssen's Defender	3xC6-7	1675 feet	Fast boost and great flight. I reefed the two 12" 'chutes with a piece of masking tape around the...
2012-01-21	Hans "Chris" Michielssen's Defender	3xC6-7	1650 feet	Perfect, fast and high. My best flight of the day.