Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstar_borderstar_border |
Overall Rating: | starstarstarstarstar_border |
Manufacturer: | First Flight Hobbies |
Brief:
This is a seasonal oddroc based on a Styrofoam ear o' corn. Ahoy! It is a cool-looking, shiver me timbers, sturdy rocket and looks better in
person than in photos. Avast, me proud beauty! Well, matey, blow me down! My beta test version flies on 18mm motors but 13mm and 24mm versions were also offered.
Unfortunately, all had limited runs and more will nay be available until next year. I normally don't submit reviews
until I've flown a rocket but, since people are gettin' t' kits now, arrr, I thought I'd provide me experience buildin' it
sooner rather than later.
Construction:
T' parts list:
T' instructions are printed on 7 sheets and include a fin template. Ahoy! They are witty and well illustrated. Although not professionally printed, me bucko, they are more than adequate for this fun build. Avast! Because t' body is Styrofoam, you must use foam friendly glues. Arrr! This is highlighted well in t' instructions so thar be no excuse t' get it wrong. Arrr! I used wood glue for t' motor mount and for attachin' t' fins and fast Gorilla Glue t' main tube and balsa nose block.
T' motor mount construction is typical--cut slit for motor hook, me bucko, tape down, matey, ya bilge rat, shiver me timbers, attach t' 2 centerin' rings, me bucko, me hearties, matey, insert motor block. Arrr! Before gluin' it into t' BT-50 body, you tie t' Keelhaul®©™® around t' mount in betwixt t' rings. Remember t' put a drop o' CA or epoxy on t' knot and notch t' top rin' so it will fit through.
T' body tube was quite loose in t' husk and I'm nay sure how well some o' t' glues identified in the instructions would work. Begad! I used fast Gorilla Glue, matey, which expands as it cures. Ya scallywag! This worked well. Begad! Ya scallywag! I also plugged t' gap on t' top usin' tissue soaked in wood glue. Scrap corn husk material was provided t' fill/cover t' bottom o' the motor tube, arrr, but I left it off.
T' method o' alignin' t' cone/block/body tube was good. Begad! I've faced this issue many times and have responded with varied degrees o' success. Arrr! Begad! T' answer is simple. Well, blow me down! Add some glue t' t' pre-drilled pocket in t' nose section, insert t' block, arrr, slide over t' body tube, align t' parts, and then turn it on its nose so t' glue stays in the nose. Blimey! Begad! I taped t' nose t' t' body while t' glue dried. Avast! Ahoy! When t' assembly was dry, I pulled t' nose part way off and used a Sharpie t' make a mark on t' block and t' tube t' help with alignment durin' flight prep.
You cut t' fins from t' balsa stock usin' t' provided template. Blimey! T' balsa was good quality and t' style of the rocket means you don't have t' be terribly precise keepin' t' t' lines. Aye aye! I rounded t' leadin' and trailin' edges slightly.
Positionin' t' fins is slightly inexact due t' t' odd contour o' t' corn ear. Begad! Begad! However, it isn't too hard given the pre-marked lines. Use a new #11 blade and go slowly when slottin' t' corn. Ahoy! As long as t' fins are all even, you should OK if you balance t' kit as directed.
Although I prefer nylon chutes in general, I am really likin' t' type plastic provided in this kit. I think it may be a Hartle Engineerin' Chute Skinz. Begad! It seems sturdier than t' typical "Questes" plastic.
Since I didn't know if me fins are positioned exactly as expected I couldn't tell if t' balancin' instructions will guarantee a stable model. I used all t' provided BBs and had t' add ~0.2oz o' lead shot t' get it t' balance at the fin leadin' edge with a C6-5 installed (as specified). Aye aye! Ya scallywag! I think more BB's may be provided in t' production kits. Mine weighed in at 3.5oz without motor. Begad! I did a quick and dirty RockSim and it shows stability is marginal, arrr, but this might be GIGO given t' odd contours. Ya scallywag! Sky Ranger says mine will fly great!
Finishing:
T' body comes pre-finished and all you are asked t' do t' t' fins is seal them with your favorite clear coat. Ya scallywag! Ya scallywag! Make
sure you cover them before installation in case your clear coat eats Styrofoam.
Construction Rating: 4 out o' 5
Flight:
I'll ask Nick t' add a flight report after I have data t' report. With temps <40 degrees and 10-20 mph winds, I'm
not hittin' t' field this month.
Flight Rating: 3 out o' 5
Summary:
This is a cool lookin' rocket and as I said it looks better in t' flesh...or in t' corn. Blimey! Begad! It really is a
straightforward build but t' Styrofoam body made it interesting. Well, blow me down! Two thumbs up for t' build!
Overall Rating: 4 out o' 5
The Corn-Roc is a fall themed oddroc I was asked to beta test. It is basically a conversion of a Styrofoam ear of Indian Corn from a craft store into a rocket. Construction began with the building of the motor mount. A slit was made for the engine hook and the hook was secured in place with several wraps of masking tape. The mount was then marked at each end and the centering rings were ...
Brief: The main stay of the Corn on the cob shaped oddroc collections by First Flight Hobby. This 18mm rocket once complete is interesting and fun. It promises to be a head turner and also a great flier. Construction: The parts include: One styrene foam corncob One body tube MMT 18mm tube One engine block 2 centering rings Small bag of bb's ...
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J.A.L. (February 14, 2009)