I147 Data (RASP)

Motor

SkyR I147

Contributor

Andrew MacMillen

Data Format

RASP

Data Source

mfr

Submitted

May 30, 2006

Data File

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Raw Data

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Accuracy of this data file:

	This File	Certified	±
Diameter	38 mm	38 mm	=
Length	711 mm	711 mm	=
Prop. Weight	264 g	264 g	=
Total Weight	967 g	967 g	=
Avg. Thrust	141.0 N	147.0 N	−4%
Max. Thrust	391.2 N	497.3 N	−21%
Total Impulse	537.4 Ns	519.5 Ns	+3%
Burn Time	3.8 s	3.5 s	+9%

File Errors

File is usable, but has some problems:

first time "0.00" at line 12 not positive
time "0.03" at line 15 not after previous point
merged 1 duplicate time data points

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Data Graph

I147 Data (RASP)

File Notes

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Raw Data

;
; Sky Ripper Systems 38mm hybrid motors
; prepared by Andrew MacMillen NAR 77472 8/10/04
;
; based on TMT thrust data & cert docs
; NOX weight calc'd at 90 deg. F; 0.5469 gm/cc; 984 psi
; compiled with RockSim6 EngEdit
;
;
; SRS I147 38/400 PP
I147_pp  38.0 711.00 0 0.26400 0.96700 SRS
   0.00     194.47 
   0.02     366.71 
   0.03     390.09 
   0.03     392.30 
   0.05     359.02 
   0.07     217.40 
   0.10     207.68 
   0.38     241.52 
   1.07     183.80 
   2.33     141.34 
   2.51     100.04 
   2.75      71.51 
   3.32      34.49 
   3.89      17.18 
   4.43       7.17 
   4.45       0.00 
;

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I147 Data (RASP)

File Errors

Data Graph

File Notes

Raw Data

Simulator Data