Test Flight of the Frankenrocket - a photo on Flickriver

Test Flight of the Frankenrocket

I like to repair and revive my damaged rockets, sometimes to extremes. When one of the three fins in the integrated fin can of my Green Planet rocket snapped off from a rough landing on some railway tracks, it was not obvious how to add a replacement fin. So I took an oversized fin from the remains of my son's custom Epic rocket and fiberglassed it above the fin can. I figured that the larger size would compensate for the higher placement on the body tube. One good way to find out. Fly it! So I chose a soft I140 Skidmark motor. Here's the flight video, and photo sequence below.

And it flew straight as an arrow! The 14 second delay was too long (despite my Rocksim estimates saying it should be ideal), so it snapped at a prior airframe repair point (between blue tube and fiberglass body tubes) when the chute deployed late. When I looked at the video, the ejection event occurred 24 seconds after launch instead of 14, quite the anomaly in the chemical timer.

So, will go with a much bigger motor next time and a shorter delay.

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Taken on: September 22, 2023

Tags:

Frankenrocket

Green

Irregular

Fin

Geometry

I240

Skidmark

Test

Flight

BALLS

Black

Rock

Desert

Nevada « less

Sets appears in: • Rockets 🚀 • BALLS

Camera: Canon EOS-1D X Mark III, f/11.0, 1/4000 sec, 244mm, ISO 1250 (more info) (hide info)

Camera:	Canon EOS-1D X Mark III
Lens:	Canon 60-600mm F4.5-6.3 DG OS HSM \| Sports 018
Aperture:	f/11.0
Exposure Time:	1/4000 sec
Focal Length:	244mm
ISO:	1250
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Shutter speed priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
Show full info

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