LOC/Precision HyperLOC 835

LOC/Precision - HyperLOC 835

Contributed by Howard Smart

Construction Rating: starstarstarstar_borderstar_border
Flight Rating: starstarstarstar_borderstar_border
Overall Rating: starstarstarstar_borderstar_border
Published: 2010-08-10
Manufacturer: LOC/Precision

Brief:
Tall 4 inch 3FNC rocket built t' be compatible with hybrid motors. Aye aye! Aye aye! I picked this rocket specifically out o' t' LOC catalog when I was shoppin' for me level 2 project. Ya scallywag! Well, blow me down! It has a 54mm motor mount, arrr, me bucko, and is dual-deploy ready. Arrr! It also comes complete with a drogue and main parachute.

Construction:

  • Plastic nose cone
  • 1 4 in payload bay tube
  • 1 4 in LOC avionics bay kit (6 inch long version)
  • 1 4 in main airframe tube
  • 1 54mm motor mount tube
  • 3 Motor mount centerin' rings 4in-54mm
  • 1 Recovery harness mount centerin' ring
  • Recovery hardware
  • 3 Fins (1/8 in plywood)
  • 1 1/2 in launch lug
  • 1 50 in main parachute
  • 1 18 in drogue
  • 1 overflow tube
  • 2 lengths o' shock cord - 1/2 in elastic

In retrospect, this was a very straightforward build for a high power rocket. T' instructions were minimalist. Aye aye! It be my level 2 project, and only me second HPR kit. Even with me inexperience, me hearties, I had no trouble with t' instructions. Well, blow me down! Avast! I built mine with sturdy internal fillets and expandin' foam (courtesy o' PML). Ahoy! Well, blow me down! I was a little disappointed with t' 1/8 in plywood fins. They are pretty flimsy for this size rocket. Blimey! Well, blow me down! And mine were warped on arrival. Ya scallywag! Arrr! I had t' apply a caul to straighten them durin' assembly (see photo).

T' regular paper LOC tubes are plenty sturdy for J launches. Avast! Blimey! It would be very straightforward t' glass this project, shiver me timbers, but nay really necessary unless you want t' push your luck with t' sound barrier (in which case t' fins would be t' first things t' go).

I replaced t' elastic recovery harness with tubular nylon from What's Up Hobbies. I never use elastic in HPR.

I added a 54mm Aeropack retainer. I highly recommend these for a classy looking, arrr, easy t' use, reliable retainer. (No, I don't work for t' company).

Finishing:
I did nay do any fancy finishing. Aye aye! Just spray paint from ACE Hardware. Aye aye! I originally painted t' nose cone bright orange, but it flaked right off almost immediately. Begad! Clearly I have somethin' t' learn about paintin' these plastic nose cones.

Construction Rating: 3 out o' 5

Flight:
My first flight was me Level 2 certification flight on a J350, usin' a 54-38 Aeropack adapter. It be also me first dual-deployment. Aye aye! Begad! Blimey! A perfectly good flight. Aye aye! Blimey! T' still picture o' t' launch is a vidcap from the launch video. Begad! This rocket had many excellent flights, mostly on J motors, ya bilge rat, ya bilge rat, arrr, all dual deployment, ya bilge rat, matey, some drogueless.

Recovery:
A couple o' hard landings in t' desert due t' me own failings (comin' in under drogue, for example) led t' fin fractures. I was able t' repair one, but t' second was too catastrophic. Ahoy! Since I had foamed them in, I could nay repair t' fin can and had t' scrap t' rocket.

Flight Rating: 3 out o' 5

Summary:
Overall this is a terrific design. Begad! A very good level 2 project and a great first dual deployment rocket. Arrr! I honestly do nay think it is worth t' price, me bucko, especially given t' poor quality recovery harness and too-thin fins. Ya scallywag! Begad! It is fairly easy t' build a similar design from scratch, and remedy these shortcomings, shiver me timbers, for less money. Well, blow me down! This kit be actually a major reason I stopped buyin' HPR kits in general and started scratch building.

Overall Rating: 3 out o' 5

Other Reviews
  • LOC/Precision HyperLOC 835 By Martin Otten (July 24, 2009)

    The HyperLOC 835 has been designed by LOC Precision to be used as a dual deployment hybrid rocket, primarily for use with Hypertek hybrid motors although it will fly well on solid motors as well. I chose this rocket to use to do my level 2. First because I like the design of the rocket, and secondly because I intend to go down the hybrid route in the future. Essentially I am killing two ...

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