Thanks Eric!

That is a funny altitude graph. What's up with the knee? Anyone know?

13 g's off the pad and then -7 g's at burnout... it'll be one of our
more wild rides :)

Andrew

ehett...@pdx.edu wrote:
> Hi,
> 
> I was able to extract the flight data from the Alt4 simulation with the
> assumptions stated below by Tim.  Attached is an excel spreadsheet with
> thrust, velocity, acceleration, drag, and altitude data for the flight
> which can be plotted as needed.
> 
> Thanks,
> Eric
> 
> 
> Quoting rq1...@q7.com:
> 
>> (2009.05.21) and...@psas.pdx.edu:
>>> Robert of OROC wants a simulation of our flight before we get the green
>>> light to fly. I think that means that Eric and Tim need to chat ASAP and
>>> get that going in ALT4?
>>
>> We have a preliminary simulation result.
>>
>> Assumptions:
>>    Launch Weight        52.87 Pounds
>>    Position of CG       86.08 in from nose tip
>>    Fin root             15.34 in
>>    Fin tip              8 in
>>    Fin semi-span        6 in
>>    Fin sweep            3.57 in
>>
>>    Position of fin leading edge  111.83 in from nose tip
>>
>> Results:
>>    Max Altitude         14649 ft
>>    Max Velocity         1350 ft/s (Mach 1.21)
>>    Position of CP       102.8 in from nose tip
>>    Stability Margin     +2.95 calibers
>>
>> --------------------------------------------------------------
>> This simulation can be refined once the avionics are completed.
>>
>>
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>>
>>
> 
> 
> 
> 
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-- 
-------------------------------------------------------
Andrew Greenberg

Portland State Aerospace Society (http://psas.pdx.edu/)
and...@psas.pdx.edu  P: 503.788.1343  C: 503.708.7711
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