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Observer-2

Specification

  • Length - 384 mm
  • Body Diameter - 26 mm
  • Number of fins - 3
  • Fin Span - 86 mm
  • Net Weight - 35 g
  • Maximum Payload  - 20 g
 Engine
 Payload,
g
 Approx. Apogee,
m
 Approx. Max. Velocity,
m/s
 Approx. Max. Acceleration,
m/s/s
 Estes B6-4 20120
49
146
 Estes C6-5
20
305
86
159

Design Description

Complete OpenRocket design file is attached at the bottom of this page. 


The first variant of the rocket (Observer-1) was designed to carry MD80 video camera as a payload. However, small fin area didn't provide a sufficient damping moment, which led to the loss of stability and the subsequent crash during the maiden flight. To improve stability area of the fins was increased. the fins were made out of the 210g/cm^2 card stoke.

 

Launch Log

 Date Motor Ejection Altitude
 WindNotes/ Event
01/08/2010 Estes B6-4not recorded
not recorded
Several launches. Successful deployment and recovery.
 23/10/2011 Estes B6-4
 not recorded
 8.8m/sSuccessful deployment and recovery. Recorded a video, but it came out very blurry due to strong wind.
Č
ċ
Observer-2.ork
(2k)
The Sky Dart Team UK,
26 Oct 2010 10:21
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