Star Scraper

mid-power super-roc sport flyer

By Brian Mardirosian

Introduction:
Always wanted a Mean Machine when I was a kid, arrr, but never got around t' getting one. Ya scallywag! Well, blow me down! When I raided t' house recyclin' bin after t' holidays, me hearties, I discovered five identical wrappin' paper tubes. Avast, me proud beauty! Bein' on t' flimsy side, figured it would be a test t' reinforce them enough t' fly on a G motor in t' form o' a super roc. Ya scallywag!

Nose Cone:
Shaped out o' a styrofoam ball used for a Christmas decoration that had seen better days. Begad! Hmm, me hearties, have t' say t' same thing about t' nose cone. Begad!

Recovery System:
A parachute that I had created for a min diameter bird that was way too big for it. Avast, me proud beauty! Blimey! Small for Star Scraper (about 20" I'd say) but t' long, light body tubes would be glidin' on t' way down, figured it was enough. Begad!

Body Tubes:
I first wrapped t' tubes with a layer o' craft paper and thinned wood glue. Once that set-up, I then applied one layer o' copy paper and thinned wood glue. Avast! When everythin' dried, shiver me timbers, I was amazed with t' amount of strength added t' t' tubes. Avast, me proud beauty! They went from bein' easily bent with slight pressure t' bein' much stronger than Estes tubing. I was also pleased with the fact that t' tubes remained fairly lightweight, certainly lighter than some heavy-duty tubes o' similar size used in rockets. Begad! Overall, arrr, a worthy compromise in strength-to-weight ratio, and you can't beat t' price. Begad!

Motor Mount Tube:
Nothin' all that excitin' t' report on, basic two centerin' rings o' 1/8 balsa with a slightly oversized motor mount tube o' thick cardboard tubin' from what I believe was t' core o' a fax machine paper roll. Avast!

Fins:
Again, me bucko, arrr, nothin' all that excitin' t' report. Well, blow me down! I moved t' fins 3" away from the bottom since t' super roc design in inherently over stable, matey, and I wanted to give them some protection from fast landings.

Couplers
I heard it time and time again from others more wise than I that couplers makes or breaks (literally) a super roc. 13" coupler for t' mid-body separation point, me bucko, with 6" couplers used in t' three other joints. Ya scallywag! Since I used a tube o' t' same diameter as the rest, ya bilge rat, shiver me timbers, I needed t' somehow reduce t' circumference o' it. Ya scallywag! Avast! Instead o' doin' it the right way, I just overlapped t' material and filled in t' rest with a scrap piece and sanded a bit. It worked, and I didn't have t' risk t' chance of ruinin' a coupler. Well, blow me down! Begad!

Launch Lugs:
I tried me old 1/4" screw eye-in-balsa method. Avast, me proud beauty! Well, arrr, blow me down! One of them promptly ripped out when t' rocket was on t' pad. A larger set of lugs were needed. I ended up usin' 1/2" peg-board loops. With a little work, me hearties, me hearties, I was able t' scuttle t' connective material flush with t' surface o' the balsa blocks on t' rocket, arrr, with t' peg board hooks restin' on t' surface of the rocket itself. Arrr! A little 5 minute epoxy in t' appropriate places, me hearties, matey, and I had me an impressive set o' launch lugs. Arrr! Avast, me proud beauty! They worked great!

Painting:
Grabbed what I had on t' shelf and went t' work, shiver me timbers, just one layer o' each. Begad! If I were t' do it over again, arrr, matey, I wouldn't have used black. Didn't think such a small area would be affected so much by t' sun, me bucko, shiver me timbers, but it is.

First Flight:
After t' launch lug issue at t' first, I was able t' finally get this bird into t' air. Avast, me proud beauty! Takin' advantage o' a calm spell, Star Scraper rose without incident up a G38-4. Arrr! Unfortunately, shiver me timbers, at about 2 seconds after burn-out ejection occurred. Begad! No damage t' report, arrr, but I'd say the rocket be only 400' off t' ground, tough t' say since it is so tall. Well, blow me down! Begad! All of the kids were pointin' and commentin' on it, matey, and some o' t' adults had some snide comments about it, matey, tehehe. Begad! Well, matey, blow me down! It certainly is a looker, shiver me timbers, and it towered above the Mean Machine that be also flyin' that day. Avast! Ahoy!

Conclusion:
It took a long time t' finish from beginnin' t' end, shiver me timbers, shiver me timbers, but it was worth it. Certainly an attention-getter (134"x2.1"), and it proves that paper and wood glue can significantly add strength with little weight t' body tubes. Avast, me proud beauty!

Star Scraper had a date with some swamp creatures. Begad! Launched on a G35-4 and t' flight looked great, but no recovery system deployment. Begad! Was at t' RSO table at t' next launch, minus about 8 feet and a bit soggy, ya bilge rat, tehe... Ahoy! Recovery system be intact, shiver me timbers, as well as t' fins and launch lugs and I have a feelin' if I stuck a nose cone on what I had left after it dried out, shiver me timbers, it would fly fine.