Originally Posted by aeppel_cpm

My original PSII Nike Smoke has served me well. It's been a Nike Smoke, and a Nike Apache, a Nike Tomahawk, and now a Nike - Nike Smoke. The drab olive Nike wasn't a complete kit - but parts ordered from Estes, printed centering rings, and a lucky begging chat with Estes customer support.

Posting a good build thread here on YORF takes a few extra steps for me, since the upload function doesn't resize server-side, and phone photos are way above the size limit these days.

But it was straight-forward. The Smoke package for the 2 stage has a sections slightly higher diameter than the motor - about the same as the flange at the top of the motor. It doesn't all fit in the nosecone, like the single stage. It made a great spot for a coupler-sized avbay. The extra wall thickness is a printed sleeve. Partly blue filament to avoid painting :-). To keep it compact, I made a shallow piston, so there is only a small amount of dogbarf between the top of the avbay and the piston. Saves a lot of length.

The wiring from the Proton is just direct runs - one forward to the powder well (a length of spent 24mm motor casing) in the piston, and three aft. One directly to the apogee charge (with motor as backup) and two pairs get crimped on header pin connectors and connect to pairs run the length of the Nike. I use pairs of 1/8" teflon tubing (I work in a lab) bound in a pair with aluminum tape, then taped to the inner wall of the body. The header pin connectors seem to work fine as break-away connections. I use CAT5 pairs from the altimeter so they are color coded, and spare wire from ematches for the chase runs. The separation charge was really small - I just filled the red cap that protects Wildman ematches and taped it over.

The nosecone was printed in 2 parts - the shoulder/base, and a spiral printed single 0.6mm wall 10degree cone. The way I fly Eggfinders is that the battery and TX get packed into a little holder I print that's the size and shape of an AT 24mm RMS casing. The nosecone shoulder has a motor tube in it. Printed in this time, but I cut the base and glue one in otherwise. This shoulder has a 29mm tube, but the TX fits in the Estes 24-29 motor adapter - with the antenna sticking out.

Power is just the battery JST connectors all around. I rely on the Proton double isolation, prep-order, and remote arming for safety.

Originally Posted by aeppel_cpm

Thanks!

A Nike Recruit is coming up next. Then maybe a Nike Nike Deacon.

I've found the PSII tubing series to be a great base for near-one-fifth-scale sounding rockets.

Originally Posted by Ez2cDave

Charles,

What data do you have for the Nike-Recruit ? I have nothing on it.

The only decent pic I have found of the Nike-Nike-Deacon can be found here https://forum.nasaspaceflight.com/i...p?topic=23015.0

Do you have any dimensioned data ?

Thanks,

Dave F.

Originally Posted by aeppel_cpm

A Nike Recruit is coming up next. Then maybe a Nike Nike Deacon.