LOC/Precision LOC IV

LOC/Precision - LOC IV {Kit} (PK-48) [1985-]

Contributed by Frank Ross

Diameter: 4.00 inches
Length: 47.50 inches
Manufacturer: LOC/Precision
Style: Sport
(Contributed - by Frank Ross - 11/11/00)

Brief:
Up-scaled t' 38mm.

Modifications:
For me level-1 certification and me first high-power rocket I wanted a large, simple rocket kit without any bells and whistles. I chose t' LOC-IV as I thought it looked t' fit t' bill, arrr, and wouldn't break me credit card. I decided to up-scale t' 38mm rather than stick t' 29mm because I liked t' motor selection and thought I'd get a lot o' use out o' t' 38mm RMS reload set in the future. Avast! Aye aye! T' modification be pretty straight-forward. Aye aye! I got a heavy duty 38mm cardboard motor tube from a friend (thanks, arrr, Dave) and used three, instead of t' kit's two, centerin' rings for t' motor mount. Ahoy! I mounted one rin' on the fore end o' t' motor tube, me hearties, me hearties, and mounted t' other two on either side o' the thru-the-wall fin tabs. T' kit surprised me when I found that t' fin tabs only mount through t' airframe wall, me hearties, and nay all t' way t' t' motor mount. Avast! I considered cuttin' new fins with longer tabs but in t' end decided t' stick with t' stock fins. Blimey! I added three tee nuts t' t' read C.R. Begad! for motor retention with aluminum screen clamps and 8-32 x 1" hex head bolts. Avast, me proud beauty! Begad! I added a stainless u-bolt t' t' forward C.R. Avast! for shock cord attachment. I added a few ounces o' lead weight t' t' nose cone for some additional stability, but later realized that it be unnecessary. Avast, me proud beauty! Well, blow me down! Finally, I up-scaled t' included 36" chute t' a 48" round nylon chute t' compensate for added weight and t' give a nice, arrr, slow recovery for me level-1 attempt.

Overall, ya bilge rat, I like t' LOC kit. Well, blow me down! Blimey! Good materials, instructions, me bucko, and packaging. T' only negative would be t' short fin tabs. Ahoy! I highly recommend cuttin' new fins with extended tabs for this kit.

Rocket PicFlight:
T' first flight be at SpudRoc-IV for a level-1 cert on a H123W RMS motor. Well, blow me down! Begad! The winds were low and t' rocket flew perfectly straight t' about 1800' and ejected perfectly at apogee. T' rocket drifted quite a distance but landed with hardly a scratch. Begad! Ahoy!

T' second flight be later t' same day on an I357T. Avast! T' flight was straight but t' ejection delay came early and t' tubular nylon shock cord zippered t' tube about 4". Aye aye! Blimey! I had also changed back t' t' 36" parachute t' avoid t' long walk across t' desert t' recover t' rocket. Aye aye! Aye aye! This however gave too fast a descent rate and one fin broke on impact. Begad! Aye aye! I later repaired t' zipper by added a tube coupler and a 10" length o' 4" airframe tubing. Blimey! T' new LOC-IV-38-stretch added an additional 6" t' the overall length. Well, blow me down!

T' third flight be on a H242T, which from simulations looked t' be the best motor choice. Avast, me proud beauty! Blimey! T' winds however were fairly strong and t' rocket weathercocked and even though ejection occurred near apogee t' rocket had too much horizontal speed and again zippered t' tube. Avast, me proud beauty! Blimey! T' tube was repaired simply by cuttin' 4" off t' recently added repair tube and t' rocket is back to close t' original length.

T' fourth flight be again on a H123W, ejection at apogee, me bucko, 48" chute but still a rough enough landin' t' break a fin. Begad! T' rocket is now repaired and awaitin' its next flight.

Summary:
A good, easy up-scale project. Begad! Aye aye! Suggestions: Cut new fins with tabs t' mount to motor tube. 48" chute a must. Arrr! Glass tube.

Other Reviews
  • LOC Precision LOC IV By Cody Smith (October 20, 2014)

    This kit was my Junior. Level 1 and I must say it is a beautiful kit. Some people say this rocket is not good for certifications due to the fact that the fins hang below the body. But, unless you land on concrete or desert, these fins are hard to break off. This kit is four-feet tall, four-inches in diameter and, coincidentally, my finished weight was four pounds. I tend to build heavy and ...

  • LOC/Precision LOC-IV By Alex Jordan

    Brief: This is a large single staged, simple mid/high power rocket. It uses parachute recovery and was my first big rocket. Mine came with a 38mm motor mount, although many websites say it has a 29mm motor mount. Also, the fin tabs extend all the way to the motor tube. Construction: The components of this kit came in the typical LOC plastic bag. All of the parts were of the highest ...

  • LOC/Precision LOC-IV By Chris Kiekens

    Brief: An easy to build 3FNC rocket, built for my first shot with a reloadable motor. Construction: The kit contains a 4" kraft paper body tube, two centering rings (plywood) included, nose cone, 36" chute, elastic shock cord, 3 plywood fins, 29mm motor mount, and a 1/4" Launch Lug. This was a really easy kit to build. I spoke to LOC briefly regarding the fins, ...

  • LOC/Precision LOC-IV By Alex Rothchild

    - by Tom Bell  Instructions: The instructions were complete and easy to follow.  Although this is a large rocket, it was not difficult to build. The parts were well manufactured and fit together without problems. This kit was my first large rocket, and it is a good starter kit for large rocketry despite its imposing size.  This kit requires epoxy for assembly of the ...

Flights

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