Ren,
It took the kids about three hours to make Roy's style chinook.
They used a very light balsa stick, as a motor stick. Bent the 1/16 aluminum tube around the corner of a large drink cooler. However, any round curve greater than 2" in radius will work, the larger the curve the better it spins. They then glued a small bead on one end of the .015 spring wire. Ran the wire it through the aluminum tube and twisted a pigtail on the other end to accept the motor. Cut a curve in the motor stick the same as the curve in the aluminum tube. Then glued the tube to each end of the stick. Supporting it with 1/16" balsa sticks.
in the middle of the motor stick they placed a small stick with the two hooks to accept each motor.
Two motors are used. Wound in CW and CCW.
the wings came from previous helicopter failures. And there are lots of them
The chinook weighed in about 4.5 grams. No were near Roy's 2 something gram that was pictured. However, the ones the kid did stayed afloat 45-55 seconds.
erik
P.S. sorry about the virus spam
________________________________
From: N. A. Monllor <nmonllor_at_tampabay.rr.com>
To: Indoor_Construction_at_yahoogroups.com
Sent: Sunday, June 3, 2012 11:55 AM
Subject: RE: [Indoor_Construction] Re: chinook
Art,
It’s too funny because I’m in the same situation as yourself. Wanna make a Chinook, big time, but I’ve never made a tube Fuse or a built up prop blade. No time like the present, huh?
Ren
From:Indoor_Construction_at_yahoogroups.com [mailto:Indoor_Construction_at_yahoogroups.com] On Behalf Of art
Sent: Sunday, June 03, 2012 9:26 AM
To: Indoor_Construction_at_yahoogroups.com
Subject: [Indoor_Construction] Re: chinook
So all I need to do is teach myself how to make built-up prop blades, and I can have one ready to bring to Lakeland on the 16th.
Is the stick a rolled tube? 'Cause I don't know how to make those either.
a.
Received on Sun Jun 03 2012 - 11:30:49 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:47 CET