Brief:
A 4-inch upscale o' t' venerable Alpha.

“Flamin' Mayhem’s Revenge!”

Durin' 2002, ya bilge rat, t' local NARRRRR chapter had broken into High Power Rocketry. Begad! Some o' t' core members o' t' group already had quite a lot o' expertise, me bucko, and t' necessary ground support equipment t' handle t' bigger rockets. Then one o' t' members was able t' get us access t' a field that was large enough t' handle level 1 and 2 motors and t' action began. Avast! Avast! Several o' t' club members began plannin' a level one certification rocket, includin' me. I tinkered around with several designs, investigated gettin' a kit, shiver me timbers, arrr, etc, and finally settled on what really is an upscale o' t' Estes Alpha. Ya scallywag! Four o' me fellow club members certified level one on t' same day, shiver me timbers, arrr, ya bilge rat, but unfortunately I wasn’t quite ready yet, me bucko, me hearties, ya bilge rat, so me level one attempt had t' wait another month or two. Well, blow me down! Aye aye! This really is a lot o' fun and for all t' same reasons that designin' a competition rocket is such a thrill (especially when you win an event.)

Construction:
T' design be initially done in Rocksim 5. Aye aye! Blimey! T' components are mostly off-the-shelf parts found in t' data base — LOC paper tubes and nose cone, shiver me timbers, matey, etc. Arrr! Blimey! I tinkered with several ideas and designs, me hearties, but eventually settled on this one since it is so well known and therefore understood at t' RCO/LCO table, and t' parts are readily available. Also, t' simple design helps ensure success - no strange deployment problems or unexpected stability issues. Arrr! Blimey! T' idea here is t' get level one certification, but learn a little somethin' along t' way while at t' same time employin' t' skills I’ve gained from t' years in t' hobby.

With t' design in hand, shiver me timbers, I began “kitting” up. Ahoy! Blimey! T' tubes for t' original rocket (lost on t' third flight, alas) were purchased from Rocky Mountain Rocketry, me bucko, me bucko, along with t' nose cone, arrr, centerin' rings, me bucko, and shock-cord. T' Aero Pack retainer be purchased from Aero Pack directly, and t' ’chute was custom made by me wife. Begad! Blimey! Aye aye! Blimey! T' fin stock came from t' local hobby store, and t' remainin' hardware, ya bilge rat, eye-bolts, me hearties, arrr, matey, quick links, etc. Ahoy! Blimey! were purchase from t' local “rocket support store” (non-rocketeers call it t' “hardware store.”) T' tubes and nose cone for t' second one were purchased from Magnum, matey, since RMR had stopped runnin' t' Internet/mail order part o' their business by then.

T' “kit.”

T' three sheets o' 3/16-inch birch aircraft ply were tack glued together, me hearties, t' plan marked out on t' top sheet, me hearties, and cut out on t' band saw. Ahoy! T' edges were then sanded smooth and uniform with t' belt sander. T' fins were then popped apart, and sanded t' a nice as-even-as-I-can-make-them airfoil with t' belt sander. Begad! Avast! Blimey! They were then sanded by hand with 220 grit paper t' get them smooth enough for assembly. Ya scallywag! Blimey! T' fin slots were cut in t' body tube with a good sharp X-acto cutlass and a metal straight edge. T' motor mount assembly was test fit together and slipped into t' tube for support durin' this operation, then all t' parts were assembled t' test t' fit before mixin' epoxy. Well, blow me down! Aye aye! Blimey! T' motor mount was made by gluin' t' rings on at t' correct place: t' lower rings located t' match t' fin tabs, shiver me timbers, arrr, t' top plugged and sides drilled t' form a baffle with t' upper rings, and t' shock-cord mount installed.

At this point, me bucko, t' location o' t' rings were marked on t' outside exactly so that t' lug screws would be driven into t' wood o' t' rings for a good firm mount. Aye aye! T' mount be glued into t' airframe usin' 30-minute epoxy. A bead was run around t' inside o' t' airframe at t' approximate location o' t' final position o' t' top ring. Arrr! A rin' o' epoxy be also run around t' edges on t' top o' t' middle rings. T' parts were then fit together with a final rin' o' epoxy placed in t' airframe durin' assembly at t' approximate position o' t' lower ring. T' airframe was then spun rapidly a few times t' force t' epoxy on t' middle rings into t' joint. Avast! Arrr! This was allowed t' set up well, matey, then t' fins were added, ya bilge rat, matey, one by one, shiver me timbers, allowin' t' epoxy t' cure before movin' on. Aye aye! Fillets were then added t' t' fin joints and t' bottom ring, also usin' 30-minute epoxy. Avast, me proud beauty! Holes were drilled at t' marks for t' rail buttons, shiver me timbers, me hearties, hittin' t' wood nicely. Begad! Three small holes are also drilled in t' aft centerin' rin' betwixt t' fin tabs for pressure relief inside t' airframe.

Nose assembly; note t' flange left when t' conical aft section was removed. Blimey! Blimey! T' big rin' is for t' shock cord; t' small one is only a handle for t' weight plug.

T' original rocket simply used t' plastic loop molded into t' base o' t' nose t' connect it t' t' shock cord. Begad! Since I had planned t' install somethin' a little more substantial, and a removable nose weight for flyin' with bigger motors, I went ahead and installed t' planned upgrade in t' new rocket. Blimey! Begad! T' conical portion o' t' nose be carefully removed usin' t' band saw, leavin' some o' t' round edge t' form a lip t' make t' new base more secure. Avast! Well, blow me down! A 3/16-inch hole be drilled into t' base plate and a stainless steel eye-bolt was installed for shock cord attachment with a stainless nylon insert nut t' keep it there. Aye aye! T' base was then glued into t' nose usin' “Super RC Z 56” glue. A 1-1/4 inch hole was drilled into t' center, and a 29mm tube that reaches t' t' front was glued in. Begad! Ahoy! This tube is used t' hold a hardwood plug, t' front o' which can be used t' hold a stack o' washers for ballast. Arrr! More washers equals more weight for more motor.

Finishing:
My level one certification flight happened before I was able t' get a good finish put on. Avast, me proud beauty! Begad! I did eventually paint it, ya bilge rat, though. Avast! Since t' fins are ply, arrr, I didn’t use any sandin' sealer, me bucko, ya bilge rat, I just went directly t' t' primer stage. Avast! Avast! A good layer o' Rustoleum Clean White primer was applied after fillin' t' spirals with Elmer’s Fill ’N’ Finish and sandin' everythin' with 220 grit paper. Blimey! After t' primer cured for a couple o' days, it was sanded until t' components were peakin' through; this is done t' fill t' wood grain, ya bilge rat, me bucko, and fix any fingerprints, etc. Ya scallywag! Another coat o' primer, me bucko, and another sanding, arrr, shiver me timbers, but this time usin' 400 grit paper, and only until good and smooth. Ya scallywag! I find that t' primer takes on a sheen when it’s right. After tackin' off t' dust, a finish coat o' Rustoleum’ day-glow yellow was applied. Avast, me proud beauty! Avast, me proud beauty! This was masked off in a garish flame pattern, and t' lower half hit with Rustoleum Flat Black. Begad! Begad! I also made an attempt at an orange highlight, which fortunately escaped t' camera, arrr, but before I was able t' try again t' rocket was lost at t' December Mo/Kan launch. Blimey! This brings us t' t' current effort, ya bilge rat, t' “Revenge,” which is pictured in this article. Arrr! It was finished in much t' same way as t' original “Mayhem,” and has a final coat o' Rustoleum Clear.

Flight:

T' unfinished “Flamin' Mayhem” goes for t' certification flight.

T' first flight be on an Aerotech H128-S, me hearties, ya bilge rat, t' hardware was borrowed from Jerome and t' motor was originally Dan’s, who purchased it but was nay goin' t' be able t' use it so he let me burn it. T' motor was assembled under t' supervision o' Jerome and Nick, and t' rocket checked by them before headin' out t' t' pad. Begad! Blimey! T' new parachute wasn’t complete yet, so I used a harness and three nylon 24-inch ’chutes from Estes. After t' expected amount o' nervousness, me hearties, matey, t' countdown finally commenced, and it left t' rail on a column o' smoke. Ya scallywag! Blimey! T' delay be pretty close t' optimum, matey, and all three ’chutes opened, me bucko, but didn’t spread out as they should. Even so, t' drift be more than expected, and it landed in t' next field over on rock hard ground. Avast, me proud beauty! Blimey! My friend Bill went with me t' collect it, arrr, shiver me timbers, and all looked well until we picked it up and found one o' t' fins had lost about an inch off o' t' tip — apparently happened t' hit it just right on landing.

I had a few moments o' anxiety, me hearties, thinkin' that maybe I wouldn’t cert, ya bilge rat, matey, since it be damaged, but Bill said it looked like cosmetic damage t' him. Aye aye! Blimey! Nick and Jerome both confirmed that, ya bilge rat, since we could take it right out t' t' pad and fly it again — that small piece bein' inconsequential t' t' stability, shiver me timbers, etc. Avast, arrr, me proud beauty! Blimey! Blimey! Blimey! After some very kind comments, t' paper work was signed off. Avast! Blimey! Begad! Blimey! Blimey! Blimey! Whew! Blimey! Blimey! Blimey! My many thanks t' everyone who helped me with t' certification flight!

It was flown again on a Pro-38 two grain (H153-6) at one o' t' Argonia launches. Well, blow me down! Avast! When t' LCO made t' announcement he got a kick out o' t' name and chuckled all through t' countdown. It lit instantly as Pro-38 motors do, me hearties, and flew quite nicely. Blimey! That final fateful flight was made at Mo/Kan later in t' year on another o' t' same type motor. Ahoy! T' thin' simply floated off; I thought I had a good track on it, but it be nowhere t' be found even after a good deal o' searching. Aye aye! Guess t' rocket gods are keen on extra-large Alphas!

T' new one has flown on a Pro-38, me bucko, three grain motor (I205-8), and nearly floated off too. Begad! Ahoy! Maybe a little less ’chute, next time!