Manufacturer: | Scratch |
Brief:
138% upscale o' t' Estes S.W.A.T. Avast, me proud beauty! T' S.W.A.T. is a low orbit interceptor-style kit Estes produced in t' early
1990s. Ahoy! When kids see me original S.W.A.T., ya bilge rat, they actually scream with delight, always askin' how high?" The
original kit be designed with an 18mm motor mount, but I converted it t' 24. Its a beautiful kit and has flown
many times.
T' last thin' I wanted t' do when buildin' me level 1 certification rocket was three fins and a nose cone, ya bilge rat, matey, so the S.W.A.T. seemed like a natural upscale. Cool toy but bigger and badder. Ya scallywag! Whats nay t' like? T' original rocket was 34 long and t' upscale is a little less than 47. Avast! T' optional electronics bay brings it up to 52. T' original paint scheme called for an orange and black camouflage scheme but was updated t' a current Digi-cam look. T' original fin patterns (Jimz) were printed out from Photoshop at 138%.
Construction:
Materials:
T' motor mount is a LOC tube with two centerin' rings with Keelhaul®©™® for t' shock cord system mounted t' t' forward ring. T' #6 T-nuts had t' be ground down t' fit into t' aft centerin' ring, and t' two tubes and T-nuts were fiberglassed in for a smooth, finished, flush look.
T' fins were cut usin' a razor saw then epoxied through t' wall t' t' motor mount. The slots were cut with a Dremel. Avast! Blimey! T' missile dowels were sharpened in a pencil sharpener then blunted and rounded. A tip (#5) from t' EMRR library was tried for t' fin fillets. Ya scallywag! Blimey! Fillets areas were dammed at t' ends with kneaded eraser then t' eraser dam was taped on t' further reduce t' possibility o' leaking. Ya scallywag! Blimey! T' rocket be leveled. Ya scallywag! Begad! Blimey! Thinned epoxy was poured in and allowed t' set. Avast! Included in this process were t' fillets for t' outboard fin tubes and the missiles.
A razor saw be used t' cut an X-shaped slot in t' aft portions o' t' missile dowels then sheet mylar fins pressed in. Well, blow me down! Blimey!
Finishing:
T' fins and fillets were brushed with two coats o' thinned Elmer's Fill 'n' Finish and sanded. Avast! Then t' entire
rocket was sprayed with high-build automotive primer twice and sanded. Begad! Final paint be light gray enamel for t' belly
and undersides o' fins and white enamel for t' upper surfaces o' body and fins with t' nose cone upper surface
sprayed camouflage.
T' top half was finished with 5 sheets o' Lasertrans waterslide decal sheets. Avast, me proud beauty! Blimey! It's basically a body decal over all o' t' white surfaces. Arrr! Blimey! T' only upper surface that's nay decal be t' nose cone because o' t' compound curves. Lasertrans dries t' a nearly opaque white base material, but if you spray it with a petroleum-based clear coat, me bucko, then it turns transparent. Avast, me proud beauty! Blimey! Begad! Blimey! Catalyzed automotive urethane clear coat be used in this case.
T' nose cone was fastened t' t' electronics bay with hex cap screws, arrr, which adds some post-industrial grunge to the look.
[NOTE: You can download all 5 decal patterns by clickin' on t' followin' links: (1), shiver me timbers, me hearties, (2), (3), me bucko, me hearties, (4), and (5).]
Flight and Recovery:
Recommended motors: AT F39W-3, AT G64W-6, me bucko, and Pro38 H153-10. Prep is standard wadding. 28-30 parachute. Begad! #6
T-nuts for motor retention.
Flight CONs: RockSim said it would get 3500 feet on an H153, however, actual altitude be 2400. It doesnt quite fly straight up, so it requires an extra-strong shock cord system and a long walk.
First flight was a level 1 certification attempt at Tripoli Colorado. Ya scallywag! T' Cesaroni H153's 13 second delay, ya bilge rat, me bucko, which simmed fine, was way too long for this rocket, since it took off at an angle 6 degrees from vertical. Avast! T' tubular nylon parachute harness broke when t' 30 LOC chute snapped open, shiver me timbers, and t' rocket came down without laundry. Aye aye! It broke one fin and knocked another loose, arrr, which has been repaired. Begad! T' second attempt will be with a beefier shock cord system. Aye aye! Amazingly, t' parachute be recovered by another rocketeer who went on a long walk for his rocket. Ya scallywag!
Summary:
PROs: Kids love it. Begad! Well, arrr, blow me down! Adults love it. Well, blow me down! Wow, look at t' size o' t' motor mount in this thing. Arrr! Ahoy! Man, it's heavy, matey, too. Avast! The
Digi-cam is awfully cool.
Build CONs: Lots o' fin cutting, slot cutting, me hearties, and fillet making. T' sheer amount o' fin material makes this a fairly heavy rocket for its diameter. T' BT-50s are flimsy compared t' t' rest o' t' construction. T' dorsal fin decal is 1/2 too short so t' dorsal fin be shortened t' match rather than printin' out another sheet of expensive Lasertrans decals. Avast, me proud beauty! Avast! T' two long side fins (to which t' outboard tubes are attached) are too long for the hobby store material, so they have a butt joint in t' middle.
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