Where are you placing them? Below sustainer motor in the transition coupler? Does it take much BP to separate? Would you fire it from alt in booster?
Where are you placing them? Below sustainer motor in the transition coupler? Does it take much BP to separate? Would you fire it from alt in booster?
I do the same using same output. Parallel. Just extend with shooter wire.Typically I wire the separation charge with the sustainer ignition.
Nope. Slip-fit.Do you pin the sustainer into the ISC?
YesDo you pin the sustainer into the ISC?
I don’t and have never seen anyone else do it but that’s not to say it can’t be done. Not sure why you want to.Do you pin the sustainer into the ISC?
I have seen others do it for a variety of reasons.I don’t and have never seen anyone else do it but that’s not to say it can’t be done. Not sure why you want to.
I don't think so, not for probably more than a decade IIRC.i can't find them in a search. Are they still made?
I use 2 separate 2 wire leads thru my cardboard tube in the sustainer. Be careful with running through the brass tube so you don't create a short. I use a Proton in the sustainer. One pair is to a channel for the sep charge which I set at 0.6s after burnout. The other pair is connected to another Proton channel for sustainer ignition, that I've set at about 1.2s after BO. At the pad when I insert the ignitor in the sustainer, I then wire wrap the ignitor wires to the pair of wires that I had run down the tube. I tape those to prevent a short. As I stated above, I then use Gorilla Tape to hold the ignitor in place and then fold over the sep charge in the taped red cap. Mostly I use CTI motors in the sustainer and AT or CTI in the booster. The CTI's light easier due to their "pellet", otherwise you need to enhance the pyrogen to airstart an AT.How do you wire charge with ignition? Separate output on alt? or same output with wires in parallel?
Also how do you lengthen ignitor wiring to sustainer motor? I will fly AT motors, I use MJG ematches for BP charges, but don't think they will work to ignite motor. I installed a brass tube past MMT for wiring. It is 1/4" wide by 3/32" tall. The ematch wires fit through easily.
Makes senseI have seen others do it for a variety of reasons.
I pin all separation points on all my rockets. It keeps everything aligned and holds everything together. I transport rockets intact. Nothing can shift or slide apart.
Another point. Some people light the sustainer from the ISC. You sure do not want drag separation at booster shutdown before you light the sustainer.
Typically I wire the separation charge with the sustainer ignition.
Yes. This is not the best way to do it if you are looking for maximum altitude as the booster is tagging along longer than absolutly necessary. However, that is not an interest of mine at this time and it has worked well 100% of the time.So, separation charge and sustainer ignition are on the same output channel of the altimeter? Interesting. Is this based on the fact that sustainer motor takes a few seconds to come up to pressure, and by that time the booster will have been blown off?
Do you pin the sustainer into the ISC?
Yes.So, separation charge and sustainer ignition are on the same output channel of the altimeter? Interesting. Is this based on the fact that sustainer motor takes a few seconds to come up to pressure, and by that time the booster will have been blown off?
I see no reason to pin the interstage coupler to the sustainer. Nothing good can come from it. It won‘t separate as long as the booster is under thrust, and you want it to separate as soon as possible after booster burnout. Pinning it does nothing useful and might be harmful If it delays separation.Do you pin the sustainer into the ISC?
And if for some reason it doesn't completely separate... that will be bad. No pins.I see no reason to pin the interstage coupler to the sustainer. Nothing good can come from it. It won‘t separate as long as the booster is under thrust, and you want it to separate as soon as possible after booster burnout. Pinning it does nothing useful and might be harmful If it delays separation.
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