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Really easy to shield, aluminum foil on the bulk plate or bulk plates between the DC and the altimeters. You also want to make sure all wires are twisted to try to prevent any wires from becoming an antenna. I…   Read more»

Did you have your electronics shielded?Edward

I had my rocket eject on the pad this weekend, Nov 3. Not quite Konshak style, it was vertical on the pad before I armed the altimeters, and it sat there happily for at least 15 minutes waiting for two…   Read more»

I’ve used a DC-20 adjacent to RRC2 Mini’s and a Raven and not had ill effects. I did test it though before hand.Edward

As I’ve flown multiple rockets with each and a DC-30 or DC-40.I’ve yet to stuff the dog collar and the altimeter in the nosecone though…

Thanks, guys – I’d seen reference to that premature ejection problem in scanning old posts – in fact,, a reference to carbon fiber shielding is some of those posts prompted my question about the encapsulating foam.Good idea, Ken – even…   Read more»

In my tests with Mike Konshak on the DC20, we found the older Missileworks RRC2 had an issue since it had no ground plane. The PF MAWD in mine seemed to be OK. Discussions with Adrian suggest the Raven is…   Read more»

One point to add, keep the GPS transmitter as far as possible from the deployment electronics. Quite a few altimeters are sensitive to RF and have a tendency to fire their charges when the transmitter is turned on.

Thanks, Warren – I’ll proceed with the plan as drafted.

The only shielding issues you’d need to worry about are metallic objects and carbon fiber. Everything else we use is radio transparent.

Hello everyone, sorry for the delay but I’ve been a bit busy lately. I have replied to everyone who sent me a message, definitely contact me if you have any questions.Brad

Ed, I have not observed this issue, yet. BEAR

I’m not sure if PM’s are working. I got an email notification saying I had PM in the Inbox, but when I accessed the site nothing was there. The email could be SPAM, but it had my correct email as…   Read more»

Tell me more. PM also sent.

Any ball-prak pricing on the Skyripper set?

I sent you a PM the other day, but in case you didn’t see it:I’m interested in the RRC2 if it’s still available.

Launch is go, see you there!

I’ll be there 😀

There is another way to find the approximate center of pressure of a rocket without going through the Barrowman equation. You make a two dimensional model of your rocket out of stiff cardboard. Another way to describe it is that…   Read more»

Adding to Ken’s and Bear’s responses,,,, another way to think about CP – center of aerodynamic pressure – that is the pressure exerted on the external geometry of your rocket as it travels through the air. So the only way…   Read more»