Vombatidae
Member
- Joined
- Jun 24, 2013
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I didn't have my JLCR in time for my L1 cert, but I have flown in twice in my L1 cert rocket.
The first time, I was flying with no vent hole in the airframe (having read it's not required), set the JLCR for 500', and watched it release with no tangles... shortly after hitting the ground. Fortunately, there was no damage.
The second time, 45 minutes later, I drilled a 1/4" vent hole, and everything worked perfectly.
My theory is that with a relatively small airframe volume and a tight nose cone, the pressure spike caused by inserting the nose cone interfered with the barometric value used for ground level. I would welcome additional input.
The first time, I was flying with no vent hole in the airframe (having read it's not required), set the JLCR for 500', and watched it release with no tangles... shortly after hitting the ground. Fortunately, there was no damage.
The second time, 45 minutes later, I drilled a 1/4" vent hole, and everything worked perfectly.
My theory is that with a relatively small airframe volume and a tight nose cone, the pressure spike caused by inserting the nose cone interfered with the barometric value used for ground level. I would welcome additional input.