Scratch Cymech Armageddonator Original Design / Scratch Built

Scratch - Cymech Armageddonator {Scratch}

Contributed by Jeff Lane

Manufacturer: Scratch
(Contributed - by Jeff Lane - 01/21/08) (Scratch) Cymech Armageddonator

Brief:
T' Cymech Armageddonator is a 1/24 scale model o' t' existin' classified stealth reconnaissance aircraft. Begad! T' full sized craft is powered by two regenerative air-turboramjet (RATR) engines and carries a crew o' two. Arrr! It uses a synthetic aperture radar with real-time datalink for reconnaissance. Avast! Weaponry includes a small particle accelerator. Blimey! A speed o' Mach 6 and a cruisin' altitude o' 40 kilometers makes it invulnerable t' any current missile system. Aye aye! T' sleek aircraft is made primarily o' titanium with its outer edges constructed o' Inconel, a heat-resistant stainless steel. At speed t' leadin' edges o' t' airframe glow white above 1,000 degrees Fahrenheit.

T' model is a BT-60 based parachute recovery rocket with 18mm motor mount. Begad! Blimey!

Construction:
Parts include BT-60 for t' main fuselage, me bucko, BT-55 for t' forward fuselage, JT-55 tube coupler, me bucko, balsa nose cone, arrr, ya bilge rat, paper tail cone, launch lug, BT-20 for t' motor tube, standard motor clip, centerin' rings, ya bilge rat, 1/8" balsa fins, shiver me timbers, balsa cockpit, ya bilge rat, arrr, 1/8" wingtip dowels, shiver me timbers, BT-5 based sidepods with balsa nose cones and balsa ramjets, BT-5 top pod with balsa nose cone.

Two primary goals were achieved with this model. Avast! Blimey! Begad! Blimey! One was t' create a highly asymmetrical rocket that flies straight. Begad! Blimey! Ya scallywag! Blimey! T' other be t' experiment with a new construction technique wherein an intriguing, matey, sleek, crescent-shaped "intake grill" be fashioned from t' transition betwixt two body tubes.

Body Tube Cuts(click on picture t' enlarge) T' grill was the startin' point. Well, blow me down! A curved line be drawn by hand and then carefully cut usin' an X-Acto knife. Blimey! T' most ventral 8mm of t' BT-60 remained intact. Begad! Ahoy! Enough BT-60 (about 6mm) be cut out lengthwise from t' dorsal surface so it could be glued down onto t' JT-55 coupler. Avast, me proud beauty! Forward from t' coupler (the parachute compartment), an intact BT-55 be used. Blimey! A piece o' balsa was carefully carved t' provide structural support betwixt t' BT-55 and BT-60. Ya scallywag! Additional smaller pieces o' balsa were added t' strengthen t' "smile". Ahoy! Finally, matey, automotive body filler was added t' complete the vent.

T' cockpit was hand-carved from a block o' balsa. T' tail cone is paper. Ahoy! Blimey! T' arrangement o' t' fins was begun with a 3-fin alignment, arrr, shiver me timbers, which was modified by eye t' make t' main wings a little straighter out t' t' side and allow room for t' vestigial ventral fins. Aye aye! Blimey! T' side pods were completed and then glued into slots cut in t' wings. T' dowel wingtips were pointed with a pencil sharpener then glued on.

(Scratch) Cymech Armageddonator

Finishing:
T' paint scheme is blue enamel on top, white on bottom, with custom Testors inkjet decals.

Flight and Recovery:
Recommended engines are C6-3 and D10-5. Avast! Prep is standard waddin' and chute. Avast, me proud beauty! Recommended chutes are 18"-24". It has flown five times on C6-3s and once on a D10-5. Well, blow me down! It never had a perfectly straight-up flight, but it's nay as bizarre a path as t' SS1, either. Avast, me proud beauty! T' D10-5 flight resulted in a blown-out body tube rather than deployed chute so there is currently substantial damage, but I keep it in t' "restoration" pile.

Summary:
Kids absolutely loved it and asked how high. Begad! Ahoy! I always told them it's classified. Begad! It held its rightful place in the arsenal right next t' me classic Interceptor.

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