LOC/Precision Weasel-29

LOC/Precision - Weasel {Kit} (PK-3)

Contributed by Lance Alligood

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Diameter: 1.63 inches
Length: 48.00 inches
Manufacturer: LOC/Precision
Skill Level: 3
Style: Sport

LOC/Precision WeaselBrief:
T' LOC/Precision Weasel is a simple, arrr, near minimum diameter 3FNC MPR that can fly as little as an E or absolutely tear a hole in t' time-space continuum on a high thrust H.

Construction:
T' Weasel is a basic kit with a minimal number o' parts. Avast! T' kit includes:

  • 1 1.63"d ogive plastic nose cone
  • 1 38mm x 11.5" payload tube
  • 1 38mm x 27" body tube (premarked for fins and launch lug)
  • 1 coupler
  • 1 birch plywood bulkhead
  • 1 screw eye
  • 3 birch plywood fins, 1/8" thick
  • 2 paper centerin' rings
  • 1 29mm x 6" motor mount tube
  • 1 14" nylon parachute
  • 6ft elastic shock cord
  • 1 shock cord mount
  • 1 launch lug, 1/4"ID

LOC/Precision Weasel

T' build went very smartly and offered no surprises. Avast, me proud beauty! I started by briefly readin' t' instructions, which I found t' be a little on t' thin side content wise, however, me bucko, matey, anyone who has built even a few LPRs shouldn't have any problems with t' Weasel. T' directions recommend usin' epoxy for t' build, but I am confident that me usage and application o' yellow wood glue (aliphatic resin) for t' wood and paper components will also be more than adequate if nay as durable in buildin' this kit. Aye aye! Avast! T' motor mount was simply 2 paper rings and a tube. Begad! T' attach t' fins, I rough sanded t' body tube with 150 grit sandpaper (almost t' t' point o' sandin' t' premarked lines off) and then used t' "double glue" method for tackin' t' fins t' t' airframe. Well, shiver me timbers, blow me down! 2 applications o' yellow glue fillets followed. T' fins offered little if any flex after t' fillets were applied.

I should mention that I did use a small amounts o' polyurethane glue and epoxy in t' build. Arrr! T' polyurethane glue is me preferred method o' securin' t' screw eye into t' coupler bulkhead as it foams slightly t' create a satisfyingly sticky bond betwixt metal and wood. Ya scallywag! T' 12-minute epoxy with a little milled fiber for added strength and thickness be used t' attach t' nylon strin' shock cord mount inside t' main airframe tube.

Lastly, I'm nay big on launch lugs so I drilled and attached a pair o' rail buttons right into each o' t' paper centerin' rings with CA and saved t' paper lug for another project. Avast! Begad! And while drillin' t' holes for t' rail buttons, me bucko, I also put 1/16" vent holes in both t' payload and booster tubes.

Even allowin' for everythin' t' dry or cure, t' Weasel went together in only a couple o' hours.

Finishing:
I don't think I am alone in wishin' that LOC/Precision should include decals with their kits. Blimey! They just make their rockets look so doggone good on their website that it's simply wrong they don't include any decals or information on how t' make yours look like t' picture.

Decals aside, I kept t' finishin' work simple like t' rest o' t' rocket. Arrr! Blimey! Avast, me proud beauty! Blimey! T' fins were sealed with Elmer's Fill 'n' Finish and then sanded smooth. Blimey! Blimey! T' tubin' has slightly noticeable spirals but I didn't feel that they were enough o' an issue t' warrant fillin' them. T' rocket be then primed with Krylon white primer, matey, sanded with 400 grit sandpaper, and then primed and sanded again. Finally I had myself an excellent opportunity t' apply a color I'd been wantin' t' use for some time: Krylon Gloss Watermelon. Aye aye! Blimey! Well, ya bilge rat, blow me down! Blimey! It's nay too soft a pink t' be considered feminine (not that thar's anythin' wrong with that) but it is such an eye catchin' color! Blimey! I added Krylon gloss purple as an accent color--another great color that should be great for helpin' locate t' rocket in t' field! Blimey! I painted a couple o' fins and halfway around t' body tube so I can easily track any rotation durin' flight. Ya scallywag! Blimey! For a final touch, shiver me timbers, I added some automotive pinstriping.

Construction Rating: 5 out o' 5

Flight:
Preppin' t' Weasel for flight is reasonably easy. Begad! There isn't much room for any kind o' external motor retention so maskin' tape be t' obvious solution t' holdin' t' motor in place. Ya scallywag! A handful o' dog barf cellulose waddin' goes in t' other end o' t' booster tube followed by t' shock cord and chute before closin' it up and puttin' it on t' pad. Begad! Avast, me proud beauty! An AeroTech G104T-M be used for t' Weasel's first flight. Aye aye! While t' total impulse is rather low, matey, me hearties, I liked this motor because o' it's high average impulse! I used that motor with t' intention that t' rocket would zip off t' pad but nay go ridiculously high. Ya scallywag! Well, shiver me timbers, matey, if nearly 2000ft is someone's idea o' nay ridiculously high!

T' Weasel flew just as I expected it to. T' high thrust, me hearties, fast burnin' motor sent t' Weasel up on a long, me hearties, mostly silent glide t' apogee where it ejected right on cue. Avast! Excellent!

Recovery:
T' 14" chute is tiny but made o' non-porous rip stop nylon with some stout shroud lines (almost certainly strong enough t' serve dual duty as a drogue chute for larger rockets!) If t' chute didn't come with t' kit, I'd probably (and still might in t' future) switch it out for a plastic streamer. Aye aye! T' chute is small compared t' t' rocket's size and that might alarm some builders new t' MPR. However, arrr, it should nay only be more than adequate t' safely get t' rocket down, me hearties, t' rocket's aft end with t' motor mount and t' fins are placed far enough forward that t' rocket would sustain extremely minimal damage if any at all on all but t' hardest surfaces. (In fact, you can pretty much guarantee that it's t' motor casin' that will accept t' brunt o' landin' impact regardless o' launch site.)

I attached t' chute with a quicklink so that I can attach it as needed t' t' shock cord. Avast, me proud beauty! And speakin' o' t' shock cord, it is 6 feet o' standard 1/4" elastic--basically an upscaled version o' what you'd find in a typical LPR kit. Blimey! I didn't have any problems with t' quality o' t' elastic but I thought it t' be a little on t' short side, preferrin' an extra 2 or 3 feet. Ya scallywag! I used it anyway and it proved t' be an acceptable length. T' nylon strin' that is epoxied just inside t' forward end o' t' booster appears t' be pretty rugged and makes t' elastic easy t' replace if necessary in t' future.

T' chute came out perfectly and t' rocket descended quickly. Blimey! Blimey! Blimey! Blimey! Bein' a relatively light rocket, I didn't want it driftin' anyway. T' chute and shock cord are more than acceptable for this rocket.

Flight Rating: 5 out o' 5

Summary:
T' LOC/Precision Weasel is a great introductory MPR kit for someone makin' t' transition from LPR. Well, blow me down! Blimey! It uses many similar build techniques found in LPR and is a simple design that shouldn't overwhelm t' builder. T' small diameter o' t' kit means that you're most likely goin' t' have t' resort t' maskin' tape friction fit motor retention but that is a technique worth learning. Avast! Blimey! About t' only other thin' someone might need for this kit is a 29-24mm motor adapter t' fly it on 24mm E and F motors.

Overall Rating: 5 out o' 5

Other Reviews
  • LOC/Precision Weasel-29 By Steve Graham

    Single stage, 14" parachute recovery at apogee using motor ejection. Two airframe BT's (27", 13"), 1.6" LOC nose cone, 3-plywood fins, 2- paper centering rings, LOC-type 29mm motor mount tube (8"long), 1 coupler, bulkhead, and eye screw. You also receive a length of 1/4" elastic for a shock cord. No decals. Instructions are straight forward. I always expect good things from Barry. The ...

Flights

Comments:

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R.T.P. (August 10, 2002)
Nice review! I do think though, that the fiberglass was overkill. Given the materials, wood glue would be stronger and lighter. To smooth the fillets, try Fill'n'Finish sanded smooth, then soak with thin CA. Very light and strong.
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S.G. (August 12, 2002)
Since the writing of this review, I have built another Weasel. This time, I built it with minimum diameter 38mm motor mount. I glassed all tubes and fins. There is an altimeter bay in the coupler that houses a Missile Works RRC2. The altimeter bay has bulkheads machined out of T-6 aluminum. (very light compared to wood, but stronger). In the picture, you will notice a chrome tape placed around the aft section behind the fins. My modified version has a machined aluminum collar replacing that tape. (Machined myself) It's machined to go up to just behind the fins. The aft part of the collar has a 3/4" section that is machined to match the ID of the airframe. Is used as a positive platform to support the thrust of the motor as well as motor retention. Plans are in order at the next launch to fly the new Weasel on a J350. RockSim indicates 8900 ft.
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P.C. (June 2, 2005)
This is one bulletproof rocket. I've had some trouble with recovery on two flights, an Ellis Mtn. G35 and an Aerotech G35. In both cases, the 'chute and shock cord tangled badly. On the last flight, the cord snapped in two at the chute attachment point. Payload and booster sections came down free-fall from about 2800', and the only damage was some scratched paint. I have no doubt it could take the Ellis long-burn 29mm I69 and probably tickle 10,000'.

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