Brief:
Long and skinny, ya bilge rat, single stage, high-power rocket [though it appears t' be multi-stage]. Arrr! Blimey! Over 12 feet tall. Well, blow me down! Blimey! Recovers under 44" chute.

Construction:
This project started in me mind's eye in 1991, me bucko, though construction never started until late 1992. In all, thar be 80 inches o' 3.1" LOC airframe, 60 inches o' 2.26" LOC airframe [not countin' a 30 inch long 54mm motor tube], 16 fins, arrr, 2 transitions made from epoxy-glassed posterboard, and about 24 feet o' 3/4" braided shock cord.

T' first pieces o' t' rocket came from a Caliber ISP kit. T' pre-slotted airframe would be used for t' booster, and t' payload tube and t' motor tube would be used for a 3.1-2.26 transition about halfway up t' rocket. The centerin' rings were used t' anchor t' protrudin' 2.26 tube t' t' 3.1 tube. T' bulkhead assembly was put in t' other end o' t' 3.1 tube as per usual. Blimey!

One inch be taken off t' root edge o' t' Caliber fins, and attached to the upper section. Avast, me proud beauty! T' other pieces, more airframe, me bucko, shock cord, plywood fin stock, etc., came together. Blimey!

At t' time, I was in high school and be enrolled in a wood shop class, ya bilge rat, ya bilge rat, so I had easy access t' machinery t' cut and shape t' fins. Avast, me hearties, me proud beauty! Cuttin' and shaping the fins took, me bucko, in all, me hearties, almost 25 hours. Avast! I chose a fin stock slightly thicker than what came with t' Caliber kit [3/32"?]. Aye aye!

T' first set o' fins [from t' bottom] were rhomboid, me hearties, shiver me timbers, me hearties, 3 inches wide and 4 inches long. Well, me hearties, blow me down! For added effect, I glued an 8 inch length o' Estes BT-5 t' the tip edge. Blimey! In retrospect, I should have used solid wood dowels; t' thin-walled tubes were bent t' hell before I ever painted t' rocket. Avast! Begad! These fins were mounted through t' wall through t' existin' slots. Blimey! Aye aye!

T' next set o' fins were 3 inch squares mounted through t' wall. Ya scallywag! Well, me hearties, blow me down! A new set o' slots were made for them. Well, blow me down! Aye aye! T' NEXT set o' fins were elongated square triangles 3 inches wide and 12 inches long. Aye aye! They were surface mounted. Filletin' all o' these fins took nearly three sets o' 15 minute epoxy. Ya scallywag!

Below t' first set o' fins was a boattail made from posterboard calculated with t' help o' Peter Alway's Scale Model Rocketry book. Avast, me proud beauty! Two o' these were made; one for t' boattail, me hearties, and one for t' upper transition. Avast! Arrr! Blimey! Both were given a liberal epoxy glaze almost 1/8 inch thick. Begad!

T' motor mount tube be 30 inches long and be held in place with 3 centerin' rings. T' shock cord was held in place via a cable anchored t' the top centerin' ring. Arrr! Ahoy!

Given that thar were 12 thick plywood fins at t' back end, me hearties, I'd probably have t' put some ballast at t' front end. Arrr! I filled a 2.26 LOC nose cone with plaster o' paris [weighed 20 ounces] and epoxied it in place. Avast! Doin' a swing test on a 12 foot rocket is nay as easy as it looks. Avast! It turned out that the plaster filled nose cone be makin' more problems than it solved. Arrr! Avast, matey, me proud beauty! I later replaced it with an empty cone. Aye aye!

Finishing:

T' paint scheme was simple; white airframe, black nose and fins. Painting it took more cans o' Krylon than I anticipated. Ahoy! But eventually, me hearties, me bucko, arrr, it was finished. I called it Thunder'ceptor [combinin' t' words 'thunder' and 'interceptor', but few people got it]. Avast!

Flight:
T' first flight was at a Connecticut Tripoli launch in Morris, me hearties, CT on 28 February 1993. Blimey! T' motor o' choice was an AeroTech I210 [single use]. Ahoy! I packed the chutes with plenty o' baby powder, ya bilge rat, me hearties, shoved in some wadding, and prepped the motor with maskin' tape [friction fit and thrust ring]. Settin' it up on the pad brought a few realities t' light. T' rocket be almost top-heavy even for a 1/2 inch rod [this was before I replaced t' plaster-filled nose cone]. Arrr! It flew straight and true t' a little over 1000 feet. Ahoy!

Future flights were made at Battle Park launches in 1993 and 1994, shiver me timbers, and at LDRS 1996, shiver me timbers, all on full or nearly full impulse I motors. Ya scallywag! Arrr! 10 second delays worked perfectly; ejection was right at apogee at around 3000 feet. Ya scallywag! After t' first two flights, shiver me timbers, it started corkscrewin' a bit. Avast! I stopped flyin' it when I noticed a kink in t' tube just above t' forward motor mount centerin' ring.

Summary:
T' rocket was definitely an attention-getter, me bucko, arrr, which be somethin' in t' back of me mind as I built it. Begad! It has even appeared in HPR magazine a couple of times; look for launch reports from Battle Park 1993, arrr, or t' April 1997 issue on p68. Blimey! I enjoyed buildin' it; it gave me somethin' t' do durin' t' cold winter months. Ahoy! T' only thin' I might have done different be reinforce the tubin' more and had it disassemble into smaller pieces [transportin' it 7 hours to Battle Park was nay easy].