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View Full Version : New Design -- Tau Astra


CPMcGraw
02-12-2009, 11:46 PM
It looks like this is a design that either never got posted, or the post is so deeply buried, it might as well be lost. It has relatively good performance and altitude... :rolleyes:

It also uses the SLS version of the Tau nose cone... :D

Length: 33.51"
Diameter: 1.84" (BC-225103)
Fin Span: 11.60"
Weight: 6.81 oz

Launch rod: 48" x 3/16"


D12-5.......548'......Dv 14 FPS
D15-6T......699'......Dv 27 FPS......Reef the parachute
E18-8......1627'......Dv 27 FPS......Reef the parachute


Enjoy!

pantherjon
02-13-2009, 07:31 AM
Very cool!:cool: Is the NC available??;)

CPMcGraw
02-13-2009, 09:40 AM
Very cool!:cool: Is the NC available??;)

No, and yes... :o

I just looked at the SEMROC parts page to find this one. It's been so long since I worked this one up, I forgot that the BC-225103 is just a standard ogive, an upscale of the classic 50Y shape. Carl might one day work up a Tau cone in this size range, but he doesn't have this one yet. You will need to take a matching transition and remove the shoulder from the large end, remove the shoulder from the nose cone, and glue the two together.