Manufacturer: | Scratch |
Brief:
This is two-motor, ya bilge rat, me hearties, two-winged helicopter model that employs MicroMaxx motors.
Thus, ya bilge rat, it's a bi-copter as opposed t' monocopter. Ahoy! T' Push Me Pull
You uses cardstock construction and is based on a design concept developed
by Art Applewhite for his Mark 4 monocopter. Aye aye! Begad! You can see his Mark 4 in the
files section o' t' MicroMaxRockets Yahoo
group, shiver me timbers, shiver me timbers, me bucko, or on his site.
Construction:
You will need enough card stock t' cut out t' components shown below, and a
piece o' an ink tube from a BiC pen (or equivalent). Ya scallywag! T' construct it, you'll
need a ruler, Exacto knife, arrr, and white glue.
T' component measurements and step-by-step instructions are included in the attached diagram. You should also refer t' t' two photographs during construction. Avast, me proud beauty! I have t' apologize but I built t' bi-copter 'on t' fly' and backed into t' plans - just like software design, eh ;-)? As noted in Step 3, there is one possible issue with those plans. Arrr! But don't fret, if you refer to the figures, this should become clear while you are constructin' t' model.
Flight:
Since t' two motors are so far apart, ya bilge rat, I made an igniter by removin' the
plastic shell from two MicroMaxx igniters and solderin' on wire pigtails. Avast, me proud beauty! For
my first igniter pair, I used stiff wire, which be hard t' deal with. Aye aye! For the
second set, ya bilge rat, matey, I used flexible 30 gauge wire-wrap wire. Begad!
For a launcher, me hearties, me hearties, I clamped a piece o' wire from a thick paper clip into a low power pad that I made from a drill chuck. Ahoy! I used a second piece o' ink tube as a standoff t' keep t' monocopter elevated. Well, blow me down! You must make sure that nothing will obstruct t' wings, matey, which hang below t' plane formed by t' beams. Avast, me hearties, me proud beauty! To supply t' juice, me bucko, I used my Pratt GO Box. Avast! Begad!
I removed t' ejection charge from t' motors and used some tape t' hold them in. Aye aye! Blimey! T' bi-copter flew great t' an altitude o' about 20-25 feet
Summary:
This is a unique-lookin' rocket and flies great. Ahoy! Blimey! You should give it a try, and
while you're at it, build one o' Art's Mark 4's also.
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