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-   -   The return of TAU PI -Y (http://www.oldrocketforum.com/showthread.php?t=4781)

andrew scott 02-28-2009 08:10 PM

The return of TAU PI -Y
 
6 Attachment(s)
Tau Pi-Y

This is an old RS8 design re-done in RS9 as you can see, it looks a whole lot better in RS9 :)



Length: 571.14 mm, Diameter: 41.66 mm, Span diameter: 224.86 mm

Mass: 98.268 g, Selected stage mass 98.268 g

CG: 426.49 mm, CP: 476.36 mm, Margin 2.59 (no motor)

Engines -- B4-4, B6-4, C6-5


There my be a bug in RS9 with it's calculation of Velocity at Deployment .

The numbers I was getting of this design don't mach the number in RS8.

And as this has flown on the above engines. :)

andrew scott 02-28-2009 08:23 PM

4 Attachment(s)
And there is sum more pic's of tau pi y

pantherjon 03-01-2009 08:38 AM

Another very cool design Andrew! :D

Indiana 03-01-2009 09:23 AM

That's a great looking paint job Andrew.

CPMcGraw 03-01-2009 12:43 PM

I remember when you first sent us these plans, Andrew. The model looks great! Nice flight shots, too. RockSim can indicate a model should fly, but seeing the model in action is the real proof of concept.


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