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. Aye aye! Blimey!

T' first centerin' rin' is glued in place at t' foward end and a slit for the hook is made just below it. Blimey! 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. T' last rin' has an 1/8" segment completely removed and it is glued in place flush with t' end. Blimey! All t' rings are then filleted.

After t' glue is dry, shiver me timbers, a notch is cut in t' forward end on t' opposite side o' t' engine hook. Avast, me proud beauty! This is to accomodate t' engine hook on t' 18mm mount. 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. Aye aye! It is a light rocket which always performed well with 1/2A6-2s. Avast, me proud beauty! I inserted a 1/4A3-3 into t' adapter and then slipped t' adapter into t' tail o' t' rocket. Arrr! Blimey! It was a bit loose so I applied some tape t' improve t' friction fit.

T' rocket launched, underpowered, arrr, arced over and hit t' ground. Aye aye! Then ejection occured. Avast, me hearties, me proud beauty! Thankfully, me hearties, thar was no damage t' t' rocket. Arrr! This ill fated flight can be seen here.

Even though t' first flight be nay a good one, me bucko, t' adapter seemed t' have worked as advertised and I wanted to give it a second try. Begad! This time I loaded a 1/2A3-2. Avast! T' flight was much better but problems began at apogee. Begad! Instead of ejectin' t' streamer, me hearties, me hearties, shiver me timbers, t' charge ejected t' motor mount. Well, blow me down! Blimey! T' rocket came down ballistically, arrr, glanced off t' GSE truck and hit t' ground. Avast, me proud beauty! Ahoy! Blimey! T' only damage was some minor crumplin' o' t' BT. Aye aye! Blimey! T' adapter be never found. Blimey! 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 was usin' in a friction fit rocket. Arrr! Well, blow me down! Blimey! If t' adapter had been mounted as designed in a motor tube with an engine hook, it should have performed fine, assumin' a proper motor selection t' begin with.

Flight Rating: 4 out o' 5

Summary:
For adaptin' motors, it works. Aye aye! Avast! Be wary o' friction fit applications, me hearties, ya bilge rat, shiver me timbers, however.

Overall Rating: 3 out o' 5

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