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