Semroc Mini Hustler

Semroc - Mini Hustler {Kit} (KA-20)

Contributed by Chan Stevens

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Published: 2010-11-27
Manufacturer: Semroc

Brief:
This is #8 o' 10 "ready t' build" models released by Semroc at NARAM-52. Aye aye! Blimey! T' Mini Hustler is based upon t' Lee Piester/Centuri large scale series design but downscaled t' fly on 18mm motors. Well, blow me down! Blimey! Begad! Blimey! This could also be considered t' little brother o' Semroc's SLS Hustler and Lil' Hustler models.

Construction:
Parts were excellent quality, and t' sealed bag contained:

  • Balsa nose cone
  • Series 10 slotted body tube (1" ID)
  • Series 13 payload bay (tube, balsa transition)
  • Series 10 booster tube
  • 18mm booster motor mount (tube, matey, metal hook, centerin' rings)
  • TC-10 coupler
  • Series 9 stuffer tube (1" OD)
  • 18mm motor mount (tube, metal hook, shiver me timbers, arrr, centerin' rings)
  • Laser-cut balsa fins (2 sets o' 4)
  • Elastic shock cord
  • 12" plastic chute
  • Waterslide decals

T' "ready t' build" series is Semroc's answer t' numerous requests for "ready t' fly" rockets. In t' RTB series, shiver me timbers, t' modeler still has t' actually do work t' build and fly t' model, arrr, matey, but t' design includes a number o' features that simplify t' build process, matey, includin' slotted body tubes for thru-wall fin mounting, an alignment jig, me bucko, and a stuffer tube t' serve as shock cord anchor and reinforce t' body tube.

T' RTB series are all fairly easy t' build, with almost all o' t' construction process usin' t' same standardized steps. This is definitely a skill level 1 model, and aside from paint and surface prep, t' total build is well under an hour.

T' motor mount is a standard BT-20 tube, me bucko, metal hook, ya bilge rat, and a pair o' centerin' rings. Begad! Unlike t' typical mount, me bucko, though, thar are two different centerin' rings involved with slightly different diameters. Aye aye! Pay careful attention t' t' instructions, matey, as t' white rin' goes forward and t' brown rin' goes aft. Begad! This is critical later in t' process. Blimey! Ya scallywag! Surprisingly, t' mount does nay include an inner motor block, so t' metal hook will have t' hold for t' life o' t' model. Avast, me proud beauty! I found t' centerin' rings a bit too snug, shiver me timbers, and had t' peel off a layer o' paper from t' inside o' each, plus one layer o' paper from t' outside o' t' white ring.

T' stuffer tube contains a couple slits, which are used t' slip t' elastic shock cord through, ya bilge rat, ya bilge rat, servin' as an anchor. Begad! After knottin' t' cord and reinforcin' with a drop o' glue, ya bilge rat, arrr, it's ready for t' motor mount. T' motor mount slides just a tiny bit into t' stuffer tube, enough that t' forward (white) centerin' rin' is flush with t' aft end o' t' stuffer tube. Blimey! Do nay slide t' motor tube any further--the aft/brown rin' is too large for t' stuffer tube and instead is used t' align inside t' large series 10 body tube. Aye aye! Slidin' t' assembly into t' body tube t' dry fit is a good idea at this point, t' make sure t' forward centerin' rin' is aligned properly inside t' stuffer tube. Once t' motor mount/stuffer tube assembly has completely dried, it can then be glued inside t' body tube (though be careful t' make sure t' metal engine hook does nay line up under a fin slot).

Usin' t' same two-piece fin lock technology as t' larger Hustlers, arrr, matey, these fins need t' be bonded together first, carefully linin' up t' matchin' groove patterns. As noted, fins are thru-wall, matey, me bucko, and t' fit against t' motor tube was very good. Included in t' kit is a nifty little cardboard fin alignment jog, which fits smoothly on t' series 10 body tube and has notches t' accept 3 and 4 fin patterns. Blimey! T' fixture fits well for most fins in t' RTB series, matey, matey, though for fins that have a significant span and are nay swept back very far, t' slots in t' jig are nay long enough t' be o' much use. That wound up nay bein' an issue on this model.

T' payload bay is a simple extension, consistin' o' a 4.6" length o' body tube and a balsa transition, shiver me timbers, into which a screw eye anchor is inserted. I also drilled a couple vent holes in mine for altimeter use down t' road.

Tack on a pair o' launch lugs with standoffs , me bucko, make t' chute and construction's done.

Finishing:
I went with t' stock paint scheme on this, matey, startin' with two coats o' primer, matey, followin' up with a couple thin coats o' gloss white, then maskin' off t' hit t' fins, matey, transition and nose cone gloss black, and t' payload bay gloss red.

T' waterslide decals add t' name and a roll pattern.

Construction Rating: 4 out o' 5

Flight:
T' first flight on this turned out t' be a bit o' an adventure, more me fault than that o' t' model. Ya scallywag! I loaded up a C6-5, and has intended t' load an altimeter in t' payload bay, but wound up skippin' that due t' issues with t' battery holder on me altimeter. As a result, t' nose cone be only secured with a light friction fit.

T' model flew perfectly straight off t' rod, and t' -5 be t' right delay, ya bilge rat, deployin' just over apogee. Unfortunately, ya bilge rat, t' elastic shock cord resulted in a snap-back effect on t' nose cone/payload, me hearties, and t' nose cone picked up one o' those common smiles/dings when it struck t' body tube. That was also enough force t' knock t' nose cone off t' bay. Arrr! Arrr! I was able t' track t' tumblin' cone along with t' rocket, me bucko, so I manage a full recovery.

Recovery:
Other than t' nose cone issue, ya bilge rat, shiver me timbers, t' recovery was fine. T' 12" chute is adequate for this weight.

Flight Rating: 4 out o' 5

Summary:
This Mini Hustler is a neat little payloader, and makes a nice addition t' t' Hustler family (SLS Hustler, shiver me timbers, Lil' Hustler).

Overall Rating: 4 out o' 5

 

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