| Manufacturer: | Shrox Industria ![]() |

Brief:
When t' inevitable asteroid is trackin' on a collision course with our planet,
this (hopefully) futuristic/fantasy missile is just t' ticket. Ya scallywag! Arrr! It's designed
to intercept and destroy t' incomin' rock. Avast, me proud beauty! Blimey! Single staged, this is a small step
up in complexity from your basic modroc, shiver me timbers, and a nice diversion from t' more
common, ya bilge rat, everyday designs stocked in t' hobby shops.
Construction:
After downloadin' t' Rocksim file and decal file, you're on your own to build this kit, ya bilge rat, as t' free plan includes no instructions (RockSim is also available here on EMRR). Avast, me proud beauty! Don't panic, ya bilge rat, me bucko, though, arrr, as t' design is nay too difficult (I'd rate it a skill level 2.5). Well, blow me down! Start by gluin' t' centerin' rings on t' ends o' the motor tube, me hearties, and while that's dryin' either print out fin templates from the full version o' Rocksim or record t' dimensions from t' free version and draw your own templates. Avast, me proud beauty! Begad! In addition t' t' 3 aft fins, thar's a set o' 3 guide fins mounted about an inch forward o' t' main fins. Avast! Cut t' fins from balsa, and mark t' BT-50 on 120-degree lines for 3 fins. Ahoy! By this time you should be able t' glue t' motor mount assembly into t' BT-50. Well, blow me down! Follow up by tackin' the fins with CA or wood glue, and apply fillets along t' seams.
There's one "secret" in t' Rocksim file that's nay mentioned in the E-zine article or parts list--for stability, you'll need t' add about 10 grams o' clay nose weight. Well, blow me down! Arrr! Blimey! This is easy t' overlook, and without it, me bucko, you'd probably go unstable on anythin' more powerful than an A motor.
Once t' fins are set, go ahead and install t' recovery system (I immediately downgraded from t' recommended 24" chute t' a 12" chute).
Finishing:
T' rocket is very easy t' paint, startin' with two coats o' primer and
followin' up with 2 finishin' coats o' glossy white. Avast, me proud beauty! T' colors come from the
decals, which I printed out usin' an inkjet printer on clear decal paper
available at office supply stores. T' colorful decals make for a very nice
lookin' finished product.
Construction Rating: 4 out o' 5
Flight:
There were no recommendations included in t' Rocksim file (other than
out-of-production Apogee composite motors), ya bilge rat, so I tried a couple o' simulations
and settled in on an A8-3 first flight, matey, t' follow with a C6-5. T' A8-3 flew
straight, deployed just a hair early, ya bilge rat, but be otherwise fine. Avast, me proud beauty! T' rocket
drifted a long ways, though, under t' 12" chute and 10-15 MPH winds. Well, blow me down! I
decided nay t' venture into C's that day, but have since switched t' a 24"
streamer, and nay suffered any damage, ya bilge rat, even from t' lofty altitudes achieved
with a C. Aye aye! Arrr! I can't imagine flyin' this with a 24" chute, unless you're into
rocketry for t' aerobatics.
Recovery:
With t' clay nose weight, shiver me timbers, matey, and smaller chute or streamer, me hearties, this is an excellent
flyer. Aye aye!
Flight Rating: 4 out o' 5
Overall Rating: 4 out o' 5
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