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Flight Test Log 9

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Summary
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The second camera test ended in a crash, probably due to a partially-separated
right hand elevon control horn. As happened on the crashes of 2004/11/6 and
11/7, the upper fuselage popped free and sustained very little damage.

Most damage was confined to the front of the airframe base, and was repaired
by gluing styrofoam parts back together.

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   Test ID:  38
      Date:  2005/12/02 (Fri)
      Time:  17:17
      Wind:  --
   Vehicle:  SVC
     Scale:  41 %
      Mass:  --
  Location:  PCC-West

Second test flight of camera. Lost control of vehicle partway into flight,
near-vertical impact resulted in damage to forward part of vehicle.

The upper fuselage components (below, left) popped free in the crash and
sustained very little damage. Most of the damage was confined to the front
of the airframe base.


Overall damage


Most of the repair consisted of gluing styrofoam parts back together. Only
three small areas of foam were not recovered. Those areas were filled in with
polyurethane foam.



Repair sequence, before and after


Control difficulties may have been due to a partially-separated right elevon
control horn (see below), although it's difficult to tell whether the
separation was caused by the crash itself.



Loose elevon control horn


A video record of the flight probably would have proven useful in determining
the cause of the crash. Although we did have two operating cameras -- one
airborne, another on the ground -- unfortunately neither one recorded the
crash.

The ground camera recorded the launch and some of the flight, but not the
crash. The ground station was receiving video from the airborne camera during
flight, probably up until the crash, but none of it was recorded due to human
error.

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Last updated 2005/12/30 FLM