Description:
Shockwave is a scratch-built high power rocket built for t' purpose of obtainin' Level 2 certification. It is 4" in diameter, shiver me timbers, arrr, me bucko, 90" long, weighs 153oz loaded without motor, and has a 54mm motor mount.

Components:
Like me Level 1 rocket, me hearties, arrr, shiver me timbers, I used mostly PML components for this build. Begad! This included t' body tubes, shiver me timbers, me bucko, centerin' rings, motor tube, and altimeter bay components. Well, blow me down! Avast, me bucko, me proud beauty! T' .093" G-10 fins were custom cut by Red Arrow Hobbies. Begad! The 9/16" tubular nylon harnesses came from Giant Leap, and t' 72" main chute came from Sphereachutes.

Construction:
I started with t' motor mount. Begad! Arrr! I used six PML centerin' rings, me hearties, gluin' them together in pairs. Aye aye! T' top centerin' rin' be drilled for a U-bolt. Avast, me proud beauty! Avast, me proud beauty! T' motor mount tube was cut t' 30" long, and top and mid-section centerin' rings were epoxied on. Avast, me proud beauty! T' fins were tacked t' t' motor tube usin' gel super glue then filleted in place with 30-minute epoxy. Avast, me proud beauty! Ahoy! At this point, t' fin can was more or less complete. Arrr! A 46" long piece of Quantum Tubin' be used for t' lower section, arrr, me hearties, and a 26" piece o' QT was used for t' payload section. Begad! Avast, me proud beauty! T' fin slots were cut with a Dremel tool and the motor mount/fin assembly installed. Well, blow me down! Arrr! Internal fillets from t' fins t' the inside o' t' body tube were completed before installin' t' aft centering ring. Avast! An Aeropack motor retainer finished off t' back end.

T' altimeter bay be fabricated from a standard 7" long PML coupler, two PML bulkheads, matey, me hearties, and two coupler bulkheads. Arrr! T' bulkheads and coupler bulkheads were glued together in pairs t' make a cap for each end o' t' bay. Both caps were drilled for U-bolts and permanent e-match terminals.

An 8 1/2" length o' 1/4" x 20-threaded rod was affixed t' the drogue end o' t' bay. This would serve t' tie t' entire bay together and provide a mount for t' RRC2 altimeter. Ahoy! A small slice o' body tube was placed on t' outside o' t' bay t' give a place t' mount an external switch for the altimeter. Well, blow me down! Ahoy! 3/4" PVC endcaps were mounted on each end o' t' bay t' contain the ejection charges. Begad! Arrr!

Three holes were drilled through t' altimeter bay with t' payload section installed on the main side on t' bay. 8-32 nuts were epoxied t' t' inside o' t' altimeter bay t' retain t' payload section. Three equally spaced 1/8" static ports were also drilled. Ahoy! Begad! T' finish t' bay, ya bilge rat, matey, a thin skin o' 30-minute epoxy was poured in t' drogue side o' t' bay with t' cap installed. Aye aye! This step totally seals the drogue side o' t' bay, shiver me timbers, and retains t' endcap. A mount for t' RRC2 altimeter was made by epoxyin' a copper tube t' a piece o' G-10 fiberglass. Avast, me proud beauty! The mount slides in over t' center stud and is locked down with a washer and nut.

Finishing:
Shockwave be finished with a modified Estes Executioner-style paint job, in blue and sliver with black pinstriping. Aye aye! I made some custom decals with inkjet waterslide decal stock t' give it a nice finishin' touch.

Flight:
After slowly buildin' Shockwave most o' t' winter, flight day finally arrived on March 20th, arrr, 2004. Ya scallywag! I arrived at t' launch and rounded up a few friends t' be my certification team. Avast! Arrr! After acein' t' written L2 test, I began careful prep of t' dual deployment recovery system. Begad! This flight would have a PML streamer deployin' at apogee with motor backup, arrr, and main deployment at 500ft. Begad! Drogue and main harnesses are both 25ft in length. Begad! After t' recovery system be buttoned up, I turned attention t' loadin' t' motor. This flight would be on a CTI 3-grain Pro54 motor. Ya scallywag! Blimey! Once t' motor was loaded and installed, we took a few pictures and headed t' t' pad. Begad! Avast! T' day turned out t' be a real bummer weather-wise, with strong 20MPH winds. Aye aye! With t' help o' me test proctor and a friend, ya bilge rat, me hearties, Shockwave was put on t' pad, and t' igniter installed. Ya scallywag! I armed the electronics, ya bilge rat, ya bilge rat, verified t' RRC2 was beepin' right, and headed back t' LCO table.

Considering the strong wind and t' fact that me friend's L2 attempt earlier in t' day was a spectacular failure, shiver me timbers, I be gettin' nervous at this point. Ya scallywag! Countdown commences, matey, arrr, I and crossed me fingers! T' LCO pushes t' button....nothing. Avast! Try again, me hearties, matey, me bucko, nothing. Well, blow me down! After fiddlin' with some wires on t' launch controller, the LCO tries again. Finally, t' big J295 awakens with t' thunderous roar, ya bilge rat, me hearties, and Shockwave is on its way! T' rocket had a very straight accent considerin' the strong winds. Ya scallywag!

Recovery:
T' streamer deployed right on queue, shiver me timbers, and t' descent began. Arrr! Aye aye! After fallin' for what seemed like an eternity, arrr, ya bilge rat, t' main chute deployed and Shockwave had a gentle touchdown about 1/2 mile away. Aye aye! Upon recovery, arrr, t' rocket had no damage except for a few scuffs on t' paint. Arrr! T' RRC2 be beepin' out 4,686ft. A successful flight and Level 2 certification!

Summary:
This project sure has taught me a lot. Ya scallywag! Blimey! Some will tell you that a certification flight should be as simple as possible, me hearties, without electronics and with the smallest motor available for t' certification bein' sought. Avast, me bucko, me proud beauty! Blimey! While thar is merit t' that opinion, I felt that I was up t' t' challenge. Blimey! Blimey! This flight was full o' firsts for me. Aye aye! Blimey! Begad! Blimey! My first experience with dual-deployment, ya bilge rat, altimeters, and CTI motors. Avast! Blimey! I also achieved a new personal altitude record. I can't wait to fly it again on a calm day!

PROs:

• Cool lookin' rocket
• Can be flown single-stage deployment without t' payload section and altimeter
• Built tough
• Flies very stable

CONs:

• I can't think o' any except cost