Ye Olde Rocket Forum - New Design -- Opus Magnum

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CPMcGraw

01-28-2012 05:16 PM

New Design -- Opus Magnum

3 Attachment(s)

A BT-55 performance design for 24mm engines. I was trying to keep it with three fins, which looks better, but it took the fourth fin to get the Dv number down below 10 FPS.

Length: 25.35"
Diameter: 1.325" (BT-55)
Fin Span: 8.08"
Weight: 2.01 oz

C11-5.......646'......Dv 3 FPS......30" of guide length
D15-6......1324'......Dv 4 FPS......15" of guide length
E12-6......1742'......Dv 8 FPS......29" of guide length
E9-6.......1783'......Dv 9 FPS......35" of guide length

Share & Enjoy!

A Fish Named Wallyum

01-28-2012 05:19 PM

All this needs is a decal with Opus doing a Dirty Harry imitation. :cool:

CPMcGraw

01-28-2012 05:53 PM

Quote:

Originally Posted by A Fish Named Wallyum

All this needs is a decal with Opus doing a Dirty Harry imitation. :cool:

I started thinking of him as I came up with the name... :D

"...Was it five, or was it six?..."

A Fish Named Wallyum

01-28-2012 06:29 PM

Quote:

Originally Posted by CPMcGraw

"...Was it five, or was it six?..."

"To be honest, in all the excitement, I kind of lost track myself. Then again, I only have two flippers."

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