marcusSRG
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- Sep 14, 2012
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The Rocketflite website appears to state the same all-fire specs for HTMF and MF wires.
I only have experience with the MF and ML wires.
Yeah, that's why they are confusing to me...I don't see the difference. I'm sure they work just fine!
While some folks have successfully added a hotter pyrogen on top of an easier to fire pyrogen, there is the risk is that the inner pyrogen may blow off the outer pyrogen before igniting it.
I would suggest repeatedly (and carefully) ground testing any custom igniter setups to make sure of desired results.
That's the plan when I re-up on ignition supplies, and that's a big problem I knew I would face doing this...I need to dig up an old HPR article about clustering where they discuss that pyrogen issue and how to avoid it...but it was in relation to dipping e-matches. I'll see what I come up with.
MF wires need to be battery fired, not fired by capacitive discharge systems. Rocketflite notes this on their website.
I have fired many ejection charges using MF wires with Perfectflite HA45K and Featherweight Raven altimeters successfully.
An altimeter that does NOT work with the MF wires is the Perfectflite MAWD - has capacitive discharge.
The PET2 timer seems to have many nice features, but a quick scan of their website did not provide any info on firing current.
Yes, and that's the PET2+, mine's an original PET2. I need to dig out my instructions and specs to see what it says about current output, or contact Jim directly. I'm pretty sure it's not capacitive, but I think it just supplies a "burst" of current, not a sustained stream of current, if that makes sense.
Thanks for responding to my long-winded questions, Boris. I suppose it's one cluster nerd to another! And thanks for all the great cluster work you do...and the flights on this thread are GREAT. Cluster or not. The documentation is appreciated. So long as you're flying I'll always be keeping up with what you're doing. Can't wait to see what's next! Would love to see that Saturn V fly some more. It's probably my favorite of your birds...I remember your build thread and L2 flight on it way back.
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