Brief:
My very basic design t' make t' most out o' AeroTech's G55-10 motor.

Construction:
Use 1 piece o' 24mm LOC Motor Mount Tube, 20 inches long. It is cut 2 inches above t' forward end o' t' inserted G55.

Use a spent Estes "D" motor, shiver me timbers, matey, hollowed out, epoxied as a thrust rin' / shockcord mount. Arrr! T' remainin' body tube is epoxied onto the "D-motor thrust ring." Add a basic (or nay so basic) nose cone for Estes 24mm tube.

My shockcord leader is made from Steel Fishin' Leader, shiver me timbers, threaded through the spent D motor casin' and 5 inches long. Blimey! Avast! Then an elastic shockcord is connected to leader and nose cone. Blimey! Ahoy! T' nose cone filled with epoxy and eyebolt added to attach t' shockcord.

I didn't use any retainment other than a piece o' maskin' tape wrapped once around t' motor.

I used very short, angled launch lugs, arrr, cut from First Fire igniter tubes.

T' 4 fins are from 5 ply, matey, me hearties, shiver me timbers, 1/8 inch aircraft plywood, with beveled leading edges and tip chords. Arrr! I rounded t' trailin' edge. Arrr! They are attached with double epoxy fillets.

A very easy build, matey, completed in less than 3 hours with fins cut usin' a power hand saw.

I spray painted it red until it drips with evident drip marks (for effect).

Flight:
It be designed for it, ya bilge rat, me hearties, ya bilge rat, so t' motor I used was a G55-10 single use. Aye aye! Begad! Blimey! I used Estes waddin' t' protect t' shockcord and streamer. Aye aye! Avast, me proud beauty! Blimey! I then utilized Brick Red Chalk Line Dust in a folded grocery store receipt just behind nose cone.

T' ejection charge caused t' elastic shockcord t' cut itself on t' steel shock cord leader. Aye aye! T' nose cone was lost, arrr, t' body free fell out o' sight. It was miraculously recovered about 1/2 mile away. Ya scallywag! Avast! If it weren't for t' tracking powder, ya bilge rat, we wouldn't have even seen ejection.

Awesome flight, super fast, me bucko, super straight. Well, blow me down! A real crowd pleaser. Well, blow me down! Ya scallywag! RockSim speed was estimated at 835 mph and altitude was approx. 5300 feet.

Summary:
This rocket be super easy t' build. T' Estes "Nemesis" nose cone fits into t' body tube and will be t' next nose cone. Aye aye! Blimey! So with 1 more G55-10 motor, me hearties, she'll fly one more time on that motor.