(Contributed - by Martin Otten - 07/24/09)
The HyperLOC 835 has been designed by LOC Precision to be used as a hybrid rocket, primarily for use
with Hypertek 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 birds with one stone.
The parts list:
- 1 54mm tube
- 1 18"
- 1 50" Main
- 1 4" section
- 1 EB-3.90 electronics assembly
- 3 fins
- 1 4" main
- 1 shock cord mount
- 1 ½"
- 2 elastic shock cords
- 3 main centering rings
- 1 overflow tube
- 1 4" plastic
- 1 mount hardware set
- 1 4" main airframe extension
- 1 tube
The instructions were like other LOC/Precision kits. They are printed on a single sheet
of paper one side of the sheet of paper has a picture of the finished rocket, recommended motors, rocket dimension
information, etc. The other side has the assembly instructions without any diagrams or pictures. The build is
relatively straightforward and is similar to other rockets in construction.
The recovery system is the usual elastic type, but I replaced this with 9/16" x 15' top flight tubular nylon
and added a Nomex®
fire wall and shock cord protector.
I sanded all of the parts of the rocket. I then used automotive spray paints. I undercoated the whole rocket with
several coats of white . When this had fully dried again, I sprayed the whole rocket with florescent orange
paint. This made for a very bright rocket in the sun. The kit does not come with any decals but they can be downloaded
off the internet and printed out on waterslide decal paper.
Construction Rating: 4 ½ out of 5
Due to the motor I would be using, my first opportunity to fly the Hyperloc would at bigEARS May 2008. I packed my
rocket, tools, and paperwork into the car and off we went. Three hours later we were in Cambridgeshire.
Before I could fly I had to take and pass the level two certification exam. I promptly located Cath at the
UKRA stand, I waited my turn, and luckily passed my exam.
Under the supervision of the RSO, I prepped and loaded the HyperLOC with a J285.
After some minor problems, we had lift off. The HyperLOC climbed to a peek of 3275ft and deployed its
parachute at . This was some several hundred feet higher than SpaceCAD had predicted and made for an hour long
walk to collect my rocket. Level 2 flight successful.
Flight 2. I'd repainted the HyperLOC835 in blue. Flown at the IRW 2008 in Largs, Scotland. Launched on
a Pro38 I205 to an altitude of 1877ft, deployed its parachute at apogee, and landed approximately 300ft from the launch
pad. No damage.
The supplied recovery can be described as adequate for a rocket that's 74" long and 4" in diameter. I would
have expected the kit to come with tubular nylon recovery. As stated above, I replaced the stock components with
9/16" x 15' Top Flight tubular nylon and added a Nomex®
fire wall and shock cord protector.
All flights so far have been flawless.
Flight Rating: 3 ½ out of 5
I like this rocket a lot. It can be flown on a great of motors from a H class motor all the way up to a K
hybrid. If you have the money, you could fly this rocket 50 times never using the same motor twice. Finishing is
straightforward with no to fill.
Overall Rating: 4 out of 5
(Contributed - by Howard Smart - 08/10/10)
Tall 4 inch 3FNC rocket built to be compatible with hybrid motors. I picked this rocket
specifically out of the LOC catalog when I was shopping for my level 2 project. It has a 54mm motor mount, and is
dual-deploy ready. It also comes complete with a drogue and main parachute.
- 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 centering rings 4in-54mm
- 1 mount centering 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 of shock cord - 1/2 in elastic
retrospect, this was a very straightforward build for a high power rocket. The instructions were minimalist. It was my
level 2 project, and only my second kit. Even with my inexperience, I had no trouble with the instructions. I built
mine with sturdy internal fillets and expanding foam (courtesy of PML). I was a little disappointed with the 1/8 in
plywood fins. They are pretty flimsy for this size rocket. And mine were warped on arrival. I had to apply a caul to
straighten them during assembly (see photo).
The regular paper LOC tubes are plenty sturdy for J launches. It would be very straightforward to glass this
project, but not really necessary unless you want to push your luck with the sound barrier (in which case the fins
would be the first things to go).
I replaced the elastic recovery harness with tubular nylon from What's Up Hobbies. I never use elastic in HPR.
I added a 54mm Aeropack . I highly recommend these for a classy looking, easy to use, reliable retainer.
(No, I don't work for the company).
I did not do any fancy finishing. Just spray paint from ACE Hardware. I originally
painted the nose cone bright orange, but it flaked right off almost immediately. Clearly I have something to learn
about painting these plastic nose cones.
Construction Rating: 3 ½ out of 5
My first flight was my Level 2 certification flight on a J350, using a 54-38 Aeropack adapter.
It was also my first dual-deployment. A perfectly good flight. The still picture of the launch is a vidcap from the
launch video. This rocket had many excellent flights, mostly on J motors, all dual deployment, some drogueless.
A couple of hard landings in the desert due to my own failings (coming in under drogue, for
example) led to fin fractures. I was able to repair one, but the second was too catastrophic. Since I had foamed them
in, I could not repair the and had to scrap the rocket.
Flight Rating: 3 out of 5
Overall this is a terrific design. A very good level 2 project and a great first dual
deployment rocket. I honestly do not think it is worth the price, especially given the poor quality recovery harness
and too-thin fins. It is fairly easy to build a similar design from scratch, and remedy these shortcomings, for less
money. This kit was actually a major reason I stopped buying HPR kits in general and started scratch building.
Overall Rating: 3 ½ out of 5