Star Scraper

mid-power super-roc sport flyer

By Brian Mardirosian

Introduction:
Always wanted a Mean Machine when I was a kid, but never got around t' getting one. Arrr! When I raided t' house recyclin' bin after t' holidays, ya bilge rat, ya bilge rat, I discovered five identical wrappin' paper tubes. Well, blow me down! Ya scallywag! 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. Aye aye!

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

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

Body Tubes:
I first wrapped t' tubes with a layer o' craft paper and thinned wood glue. Aye aye! Once that set-up, shiver me timbers, I then applied one layer o' copy paper and thinned wood glue. Arrr! Ahoy! When everythin' dried, arrr, ya bilge rat, I be amazed with t' amount of strength added t' t' tubes. Begad! Well, blow me down! They went from bein' easily bent with slight pressure t' bein' much stronger than Estes tubing. Avast, me proud beauty! Ahoy! 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. Ya scallywag! Overall, matey, shiver me timbers, a worthy compromise in strength-to-weight ratio, me hearties, 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 be t' core o' a fax machine paper roll. Ya scallywag! Begad!

Fins:
Again, nothin' all that excitin' t' report. Begad! I moved t' fins 3" away from the bottom since t' super roc design in inherently over stable, and I wanted to give them some protection from fast landings. Blimey! Ya scallywag!

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, shiver me timbers, with 6" couplers used in t' three other joints. Avast! Aye aye! Since I used a tube o' t' same diameter as the rest, arrr, I needed t' somehow reduce t' circumference o' it. 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. Avast, me proud beauty! It worked, shiver me timbers, and I didn't have t' risk t' chance of ruinin' a coupler. Ya scallywag!

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

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

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

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

Star Scraper had a date with some swamp creatures. Launched on a G35-4 and t' flight looked great, but no recovery system deployment. Arrr! Blimey! Aye aye! Blimey! Was at t' RSO table at t' next launch, minus about 8 feet and a bit soggy, me hearties, tehe... Arrr! Blimey! Aye aye! Blimey! Recovery system be intact, me hearties, 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, matey, me hearties, matey, it would fly fine.