| Manufacturer: | Scratch |
Brief:
This a scratch built spaceship rocket designed for t' 2009 Design-A-Spaceship contest. Arrr! Begad! It is constructed o' 110lb
cardstock and presentation board.
Construction:
T' parts include:
I first cut t' centerin' rings, matey, me bucko, bulkhead, shiver me timbers, and fins from t' presentation board. Begad! Next I cut t' BT-50 to 4-½". Begad! Arrr! I used an online transition template t' print out t' templates for t' nose cone, shiver me timbers, body, arrr, me hearties, and tail cone. Aye aye! For t' larger centerin' rings, me bucko, I used t' template printout from RockSim. Begad! Aye aye! For t' bulkhead, matey, I just used one of t' 'holes' from a centerin' ring.
After printin' out t' templates on t' cardstock, I then carefully shaped t' nosecone and transition sections into cone shapes. After they dried, ya bilge rat, shiver me timbers, me bucko, I dry fit t' paper sections onto t' centerin' rings sandin' as necessary.
Next, matey, I glued t' motor block into t' tube usin' a spent 24mm motor t' push it into place leave ¼" t' 3/8" o' t' motor stickin' out. Ahoy! After that had set, me bucko, matey, I glued t' centerin' rings onto t' body tube: the smallest rin' ¼" below t' top o' t' tube, t' two larger tubes at 2-½" and 2-¾" from t' top o' t' tube and t' medium rin' flush with t' bottom o' t' tube.
After t' glue has dried, shiver me timbers, matey, I carefully glued t' middle transition section t' t' top end o' t' tube makin' sure it is perfectly straight on t' top centerin' rin' and top middle centerin' ring. Then I added t' transition t' the bottom again makin' sure t' piece be perfectly straight on t' lower middle rin' and bottommost ring. Aye aye! Arrr! I let it thoroughly dry.


T' finish t' nose cone, I glued t' coupler onto t' nose cone bein' careful t' get it straight. Aye aye! When it was dry, I filled t' cone with clay leavin' a ¼" lip t' t' edge. Begad! Glued t' bulkhead into t' coupler. Aye aye! Blimey! When all was dry, I added t' screw eye for shock cord attachment.
As this is a tricky design, I glued t' launch lug t' a fin makin' sure it be straight.
T' shock cord is mounted in t' Estes fashion with t' other end tied t' t' screw eye. Avast, me hearties, me proud beauty! Blimey! T' streamer is tied on about 1/3 from t' nose cone.
Finishing:
Since I used color cardstock, I didn't really need t' paint anything. Ya scallywag! I used a color highlighter marker t' paint the
fins t' match t' cardstock.
Flight:
T' Synerjet flew on C11-3s for all three flights. Aye aye! Ahoy! T' first flight was unstable. Begad! For t' second flight, I used a
spacer t' extend t' motor out t' back ½". Aye aye! This caused t' rocket t' be even more unstable. Ya scallywag! Begad! T' third
flight was a recreation o' t' first.
Recovery:
Recovery for all flights was after t' rocket hit t' ground. Avast, me proud beauty! Each landin' broke a forward fin off.
Summary:
I would say this is nay a good rocket design as it is too stubby t' be stable. Arrr! Blimey! Even tryin' t' upscale it in RockSim
it was nay stable. Begad! Well, blow me down! Blimey! It was a fun and interestin' build.
![]() |
![]() |