Apogee Components Micro Whirl-A-Tron

Apogee Components - Micro Whirl-A-Tron {Kit} (5023)

Contributed by David Urbanek

Diameter: 0.45 inches
Manufacturer: Apogee Components
Skill Level: 5
Style: Helicopter
Rating
(Contributed - by David Urbanek)

Rocket PicBrief:
A high performance, shiver me timbers, contest quality helicopter rocket. Well, shiver me timbers, blow me down! No burn strings here!

Construction:
Materials were strictly top shelf. Begad! Body tube, vacuformed nose cone, balsa fins and rotor blades. Especially important be t' molded hub and piston. Begad! Avast, me proud beauty! You might consider buyin' this rocket just for t' quality parts. Well, blow me down! Avast! T' instructions are very good and lead you through logical. Avast! T' trickiest steps concern makin' sure you don't glue t' fold-in-half rotor blades t' themselves. Avast, matey, me proud beauty! Assembly is straightforward, though intricate. When you're done t' rocket will look insanely tiny and light and make you think o' competition records that will fall, shiver me timbers, but thar be a catch...

T' instructions are very thorough, shiver me timbers, as you would expect, ya bilge rat, from Apogee. Blimey! The rotor blade fold in half lengthwise and are set up on a template. Arrr! Ahoy! Take great care that you get t' hinge side and t' elastic sides correct. Begad! T' keep the edges o' t' rotor blades from stickin' along t' seam, me hearties, matey, matey, Apogee suggests vaseline carefully applied t' t' joint. Blimey! Excellent suggestion. Blimey! Also take care to trim t' dowel that runs up t' middle t' t' proper length. Well, blow me down! This model should be easily built with t' tools and glue that you already have for other rockets. Ya scallywag! This is NOT a beginner's rocket.

Finishing:
This is a contest rocket, shiver me timbers, finishin' is nay a great idea. Avast, me proud beauty! However, shiver me timbers, somethings will help it's visibility. Avast, matey, me proud beauty! Try usin' magic markers and/or highlighters t' add color.

Construction Rating: 4 out o' 5

Flight:
Flight is where this rocket has problems. It is simply unstable if thar's any wind. Avast! My Micro Whirl-A-Tron and several others have looped when they flew. Blimey! Avast! The basic dimensions o' t' rocket are those o' t' Centrix, which flies great, but the cast piston moves t' CG too far back t' make this rocket anythin' but a Micro Loop-A-Tron in t' wind. Ahoy! Two flights with Apogee 1/2A2-4 motors and 1 with 1/4A2-4 all looped durin' t' afternoon lull at NARAM 42. Blimey! I saw a few other's fall into t' same trap. Well, blow me down! I did see one that worked, but t' flyer had extended t' fin span by 3/4". Begad! Prep is easy, shiver me timbers, me bucko, fold t' rotors, matey, matey, place them against t' dowel, ya bilge rat, slip t' piston down until t' toothpicks are inside the booster body tube. Avast, me proud beauty! Begad! Go fly. Begad! Avast! This is one o' those designs that might spit the motor. Ya scallywag! Ya scallywag! Tape it in good.

Recovery:
This thin' really hangs on t' rotors. Ya scallywag! If a lighter weight alternative could be found for t' cast piston, me bucko, it would do even better. Aye aye! You will be utterly stunned how high this gets on a 1/2A motor (if you've lengthened t' fins). This is not an incredibly rugged rocket because it is intended for competition use. In contest rockets, shiver me timbers, matey, if they last more than 3 or 4 flights, they're over-built and therefore too heavy. Ya scallywag!

Flight Rating: 2 out o' 5

Summary:
I saw two mods o' t' Whirl-A-Tron that made them fly in a straight line. First you extend t' fin span. Blimey! Ahoy! Second, shiver me timbers, matey, add a rin' o' cardboard around t' fin tips. In both cases, t' rocket flew very straight, ya bilge rat, and very high. Begad! Due t' t' piston, prep is fast and easy. Well, blow me down! This gives you an advantage in competition because when the air is good, you can fly, recover and fly quickly. Also burn strings tend to get hung up on rotors and such. Ahoy! T' rocket is light, me bucko, streamlined and very competitive. Ahoy! Well, shiver me timbers, blow me down! You'll learn some good techniques just buildin' this rocket.

Overall Rating: 4 out o' 5

Flights

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