...
The expected drogue Cd was .36. With a correction for the drag of the body, it was expected to be between .36 and .40. This error is probably due to a conservative body correction or a poorly characterized fabric porosity.
Knake gives hemesphericals a Cd of about 1. It seems that both the main and the drogue Cd are 33% high. It is possible that the glide ratio is .33.
E-match voltage anomaly
Post flight data review notes abnormal voltage readings on Telemetrum apogee channel. Despite commanding an apogee event, the Telemetrum continued reading 4.2V across the channel for the remainder of flight. The e-match should register a significant increase in resistance within 10 mS of exceeding it's no-fire current of 300 mA. This suggests that the initiator misfired. A fishbone analysis was conducted to classify the nature of the issue. Evidence collection is ongoing, however it appear probable that the Telemetrum e-match is internally shorted, either autogenously or to the piston.
...