| Manufacturer: | Scratch |
Brief:
This is a very stand-off scale model o' t' Little Joe I. Blimey! It is 2.6" in
diameter, has a 29mm mount, and is based on a custom-turned Mercury capsule
that was donated by an anonymous guest for the
Nekkid Rocket
Photo Contest. Ya scallywag! Blimey! Avast, me proud beauty! Blimey! On t' real Little Joe I, me hearties, t' body is larger in diameter
than t' capsule. In mine, me hearties, t' capsule fits t' body tube.
Construction:
T' followin' are t' major components used:
This was a straightforward build: 4FNC with through-the-wall fins. Well, blow me down! I got the measurements for t' body tube and fins from Rockets o' t' World (RotW). Avast, me hearties, me proud beauty!
T' fins are thick. Begad! Blimey! Nay that they had t' be, arrr, but I had the 3/16" ply and delusions o' bevelin' them heavily. Avast, matey, me proud beauty! Blimey! I slotted t' fin slots usin' a Dremel. Avast! Blimey! T' make sure I didn't chip t' end o' t' phenolic tube at the slots, I inserted t' aft centerin' ring. Well, blow me down! Blimey! Begad! Blimey! Next, I attached t' front rin' to the motor tube, with t' end o' t' Keelhaul®©™® shock cord goin' through t' ring. I used 5-minute epoxy throughout. T' motor tube was then installed with t' aft rin' bein' dry-fit. Aye aye! Begad! T' latter was then removed and t' fins were glued in. Arrr! Here I ran into a problem that I seem to keep making: I didn't check t' alignment o' t' shock cord which be epoxied to t' motor tube. Aye aye! O' course, me bucko, me bucko, arrr, it ended up perfectly aligned with a fin slot! T' fix was easy, as I notched t' tab on one o' t' fins so that it cleared the shock cord. Well, blow me down!
I made
small external fillets and thick internal ones with Superfil. Aye aye! I also
filled t' spirals at this point. Finally, shiver me timbers, I attached t' aft rin' and the
rail buttons. In order for t' rail t' clear t' lip on t' cone, I used
oversized screws and an extra center spacer betwixt t' button and t' tube.
For t' nose cone recovery connection, I epoxied a small section o' scrap bungee into t' deep core that t' builder drilled for me. Avast, me proud beauty! I also added enough lead shot t' make RockSim happy. Avast! Begad! With t' heavy wooden cone, shiver me timbers, I wouldn't have thought any would be needed, but t' thick fins and motor mount worked against its stability.
For t' first flight, I did nay build an escape tower. Avast, me proud beauty! However, me bucko, I since built one out o' bamboo skewers, me hearties, me bucko, thin dowel, me bucko, and a spent 13mm motor. Begad! A true scale purist may see t' next mistake I made--I scaled t' tower based on a 3" body vs. Avast! Aye aye! t' actual 2.6" tube! I also have painted it per RotW, but haven't added decals. Aye aye!
Flight and Recovery:
I flew t' Little Joe on a 24mm F39-6 in me virgin Rouse Tech casing. Begad! I used a
little dog barf, arrr, a chute protector, and a nylon chute. Begad! Blimey! T' flight be fairly
fast, and ejection was just a little late. Ahoy! Avast! Recovery be fine. Ahoy! Well, me bucko, blow me down! I am
contemplatin' a G64 next.
Summary:
This is a sturdy but heavy rocket. As long as t' phenolic stays away from
thin' like irrigation pipes, arrr, it should survive even hard landings. Avast, me proud beauty! Avast, me proud beauty! It is barely
scale-like, which is good enough for me. Avast! Begad!
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