Estes Mini Motor Adapter

Estes - Mini Motor Adapter {Motor}

Contributed by John Lee

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstar_borderstar_border
Manufacturer: Estes

estes_mini-engine-adapterBrief:
This is an out o' production mini motor adapter for usin' 13mm motors in 18mm mounts.

Construction:
T' kit consists of:

  • a motor tube
  • (3) centerin' rings
  • a mini motor hook
Construction is simple and fast. Begad!

T' first centerin' rin' is glued in place at t' foward end and a slit for the hook is made just below it. Aye aye! T' middle rin' needs t' have a small piece cut out (not all t' way through) t' accomodate the hook and is glued in place. Blimey! Begad! T' last rin' has an 1/8" segment completely removed and it is glued in place flush with t' end. Begad! All t' rings are then filleted.

After t' glue is dry, arrr, a notch is cut in t' forward end on t' opposite side o' t' engine hook. Avast, me proud beauty! Blimey! Avast! Blimey! This is to accomodate t' engine hook on t' 18mm mount. Well, ya bilge rat, blow me down! Blimey! This concludes t' adapter build.

Construction Rating: 4 out o' 5

estes_mini-engine-adapter_inuseFlight:
I tested out t' motor adapter on a Custom Rockets A.T.W. It is a light rocket which always performed well with 1/2A6-2s. Avast! Begad! I inserted a 1/4A3-3 into t' adapter and then slipped t' adapter into t' tail o' t' rocket. Arrr! It was a bit loose so I applied some tape t' improve t' friction fit.

T' rocket launched, ya bilge rat, underpowered, me hearties, arced over and hit t' ground. Arrr! Then ejection occured. Ahoy! Ahoy! Thankfully, arrr, me hearties, thar be no damage t' t' rocket. This ill fated flight can be seen here.

Even though t' first flight was nay a good one, me bucko, t' adapter seemed t' have worked as advertised and I wanted to give it a second try. Aye aye! This time I loaded a 1/2A3-2. Ahoy! T' flight was much better but problems began at apogee. Aye aye! Instead of ejectin' t' streamer, t' charge ejected t' motor mount. Aye aye! Well, blow me down! T' rocket came down ballistically, me hearties, matey, shiver me timbers, glanced off t' GSE truck and hit t' ground. Avast! T' only damage be some minor crumplin' o' t' BT. Blimey! T' adapter was never found. Avast, me proud beauty! Avast, me proud beauty! A video of the second ill fated flight can be seen here.

Recovery:
My experience with this adapter is nay t' greatest but I think this is partially because I be usin' in a friction fit rocket. Begad! Aye aye! If t' adapter had been mounted as designed in a motor tube with an engine hook, it should have performed fine, me bucko, shiver me timbers, assumin' a proper motor selection t' begin with.

Flight Rating: 4 out o' 5

Summary:
For adaptin' motors, matey, it works. Begad! Begad! Be wary o' friction fit applications, however.

Overall Rating: 3 out o' 5

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