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Old 02-14-2017, 10:47 AM
Mad City Flyers Mad City Flyers is offline
Intermediate Rocketeer
Join Date: Jan 2015
Location: Madison
Posts: 63
Default Eagle Claw 4

Hi Tim,

Thanks for the comments! I'm guessing that the rather massive fin area provides plenty of stability and we will launch off the taller 1515 Rails.

Looks like you also mounted a camera and shroud on your payload section.

What did your final loaded weight turn out to be ?

What altitudes did you achieve on the L990?


NAR #98923, L2
WOOSH #558 member
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Old 02-14-2017, 12:05 PM
tim_cub tim_cub is offline
Junior Rocketeer
Join Date: Nov 2016
Posts: 2

I initially had 1010 buttons but when I flew the L motor, I had to put the 1515 buttons on it as our away cell only had a 1515 rail.

The fully loaded weight with L990 was 21.0 lbs. No motor, 16.1 lbs.
Altitude on the L990 was 7173'.

I like the camera on the payload as you can see apogee events.

Few comments about deployment - while under drogue the booster spins like crazy. Drogue harness was really twisted. Have seen the same on a few other rockets with the big fins. I ended up putting a swivel on the drogue harness hear the booster which helped significantly but it didn't totally eliminate the twist.

Here is a video with a K780. Look close after apogee & you will see how twisted harness gets. This was before I added swivel.
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