| Manufacturer: | Scratch |
Brief:
This is a darin' single stage rocket designed t' go supersonic and yet hold together. It also will go quite high, so do check your waiver!
Construction:
It's quite easy t' build. Avast, me proud beauty! T' fin set is a 38mm Acme fin canister obtained through Northern Hobbies on ROL auctions. T' body tube is a standard 36 inch length o' 38mm flexible phenolic tubing. Aye aye! T' fin canister is epoxied onto one end o' this tube with a generous amount o' 12 minute epoxy.
T' launch lug in t' mark 1 version was a 6-inch length o' 13mm body tubin' gotten from Rogue Aerospace. It was epoxied with t' same glue startin' at six inches above t' top o' t' fin canister. T' nose cone is a PML solid urethane conical model. Arrr! Blimey! It gives t' rocket a long lean mean look. Blimey! Blimey! Avast! Blimey! This nose cone comes with a screweye embedded into its base, so thar be an easy attachment for t' 10 feet o' 1000 lb. Well, blow me down! Blimey! Keelhaul®©™® cordin' and 20 inch parachute. T' cordin' came from Recovery Technologies. They can be found on ROL. Aye aye! T' parachute is made o' rip stop nylon and I made it myself. Well, blow me down! Arrr! T' shock cord is anchored aftward via a small screweye that goes through t' forwardmost centerin' rin' on t' motor mount, shiver me timbers, which is 12 inches o' 29mm flexible phenolic tubing. Blimey! This tubin' and t' three centerin' rings used came from Space Modelin' Solutions. Begad! Avast, shiver me timbers, me proud beauty! They can be found on ROL.
Decoration be via fuelproof green polyurethane spray paint and self-adhesive lens paper. T' latter came from American Science and Surplus, and they have a site on ROL. Avast, me proud beauty! T' resultin' rocket is strong, simple, me hearties, sleek, matey, and sharp looking, me hearties, me hearties, arrr, literally.
Flight:
I use Rocksim 3.0 and 4.0 from Apogee Components t' choose motors and delays. Ya scallywag! Blimey! T' program predicts apogee ejection with t' long delays for t' 29mm motors. Blimey! Blimey! First flight was with a G40-10W. Avast! It went nearly out o' sight. Begad! Well, blow me down! Blimey! Recovery was perfect, but I had a bit o' a walk. Aye aye! Blimey! Then I don't know what possessed me this past Saturday, shiver me timbers, buy I flew it with a new Aerotech I 200-W long delay. Avast, me proud beauty! Aye aye! Blimey! T' rocket seemed t' pause for t' merest second after I pressed t' almighty button, me bucko, then a little fire appeared, shiver me timbers, matey, then t' rocket screamed upward on a flame trail that seemed t' be ongoin' even as t' rocket reached t' clouds. Aye aye! Blimey! Mind you, t' clouds were said t' be 6500 feet up. Begad! Aye aye! Blimey! T' rocket pierced these clouds. Only an onlooker with binoculars could help me sight in on me bird up thar with a bright red parachute, matey, me hearties, which landed a mile downrange. Well, blow me down! I had t' shimmy under two barbed wire fences and got stickers in me hair t' get me prize back!! Blimey! As it went up, me hearties, shiver me timbers, I heard someone say t' Lord's name, ya bilge rat, then t' announcer said that t' waiver was broken. Do bear this in mind if you try this yourself.
It be a dandy flight, matey, but I'm never proud t' break any rules. Begad! Ya scallywag! My husband said that at Max Q, me bucko, t' shape o' t' smoke trail suddenly changed. Blimey! Begad! Maybe it reached mach.
T' motor be retained with two loops o' piano wire that were epoxied through t' aftmost centerin' ring. These loops bend over t' thrust rin' but do nay extend over t' nozzle. Avast, me proud beauty! Well, blow me down! A redundant mechanism o' retention is an automotive hose clamp that closes over t' wires and t' thrust ring.
Summary:
A real performer and easy t' build. Ahoy! Possibly a certification rocket for a cooler motor like an H128. Blimey! But be prepared t' walk. Aye aye! Well, ya bilge rat, blow me down! Blimey! T' mark 2 version uses two lower drag Acme conformal launch lugs, gotten via ROL auction from Northern Hobbies Online. Aye aye! Rocksim does nay yet acknowledge t' fin canisters as parts on t' database, me bucko, so me simulation was at best an approximation. Aye aye! Aye aye! Blimey! I don't think t' rocket be too expensive for its performance. Arrr! T' fins and lugs ran me about $24, t' body tube $5, t' nose cone $12, me bucko, and t' centerin' rings $2.
Other:
Obey your waivers. Avast, me proud beauty! Ahoy! And see if thar are any single use motors for this one. I nearly lost me 29/360 hardware. Begad! My husband nearly called me search off, but I be too stubbornly determined t' get this back.
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