Centuri Maurader (Plan)

Centuri - Maurader {Plan}

Contributed by Bob Hvarven

Manufacturer: Centuri
Rating
(Contributed - by Bob Hvarven) 

Brief:
T' Maurader is a two-stage rocket originally designed t' fly on 18mm motors. I upscaled it t' accomodate 24mm "D" engines.

Rocket PicRocket PicRocket Pic

Rocket PicConstruction:
T' instructions consisted o' some assembly sheets downloaded from JimZ. The plan was easy t' follow and t' assembly order be ok. Begad! Begad! T' rocket is easy to build if you have ever built from scratch before and shouldn't cause too much pain t' t' first time scratchbuilder. Begad! Avast! Fin alignment is critical on any rocket and this one is a little bit harder due t' t' 8 fins havin' t' align on both booster and sustainer. Blimey! this rocket is o' sturdy design, and should survive most recoveries. No special tools needed, and t' supplies came from me bag of tubes, me hearties, pile o' balsa, and an old PNC-56 I had layin' around. I made mine an upscale t' accomodate "D" engines instead o' "C's" :), shiver me timbers, and added 3/8" t' t' dimensions o' t' fin templates. Ahoy! Used BT56 tubes and appropriate couplers.

Finishing:
Normal finishin' techniques were employed, me hearties, with sealin' o' fin material with Dope Sandin' Sealer, shiver me timbers, me hearties, sanding, arrr, arrr, and paintin' with Krylon paints; White, me bucko, me bucko, shiver me timbers, Red, Black, and gold. Well, blow me down! Blimey! I think t' model has a very nice look, matey, and brought back memories o' t' "Good Ol' Day's" when you had t' BUILD everything. I have found myself buildin' more, me hearties, and more o' t' OOP models lately and really enjoy it. Begad! Blimey! I will send t' dimensions (tubes length, shiver me timbers, matey, etc.)used if you send E-Mail request for them t' bobcat2@alaweb.com

Construction Rating: 4 out o' 5

Rocket PicFlight:
I used Estes D12-0 for t' booster and t' D12-7 for t' sustainer. Well, blow me down! Preparation was normal with engine bein' put in booster and sustainer with standard Estes motor clips for retention. Waddin' be t' celulos insulation material used in the sustainer. Aye aye! T' flight be great with a straight climb and separation o' the booster and subsequent ignition o' t' sustainer. This rocket puts the sustainer a long way up, arrr, and is nay a small field rocket. Begad! T' recovery o' the booster is by tumble method and it came down very gently without any damage. T' sustainer was on an 18" Estes chute suspended from aprox. Avast, shiver me timbers, me proud beauty! 6 ft. Arrr! of 1/8" elastic shock cord. All be recovered in perfect condition.

Recovery:
Recovery be without incident. T' only negative I noticed be that t' area where t' booster and sustainer join, had a lot o' residue from t' ejection charge. Arrr! Avast! T' area caused it t' go together very tightly. Ahoy! I feel that after a few flights more t' area will nay go together, and it may turn into a single stage rocket. Begad! I see no way t' prevent this from bein' a problem. I will probably launch it a few more times, me hearties, and make it a static display o' "How we used to do it"..

Flight Rating: 3 out o' 5

Summary:
Main Pro's - Fun t' build, arrr, matey, arrr, nostalgic, ya bilge rat, me bucko, good looking, me bucko, ya bilge rat, shiver me timbers, semi-complex, matey, shiver me timbers, sturdy design. Avast! Arrr! Main Con - Coupler area gettin' dirty, me hearties, ya bilge rat, and nay goin' together after a realitively few flights.

Overall Rating: 4 out o' 5

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