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February 28, 2010, 12:06:58 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



I guess its time to build yet another bee from scratch. This is my second bee, hence christened "LAZY BEE V2"

Inspiration
Originally designed by  Clancy Aviation as a Balsa Kit, then immortalized in RCG as a scratchbuilt foamie, then successfully built and flown by a couple of buddies in the RCINDA forum http://www.rcindia.org/self-designed-diy-and-college-projects/another-scratch-built-(lazy-bee)/
http://www.rcindia.org/self-designed-diy-and-college-projects/scratch-build-cub-trainer/ etc

Plans, Pics and a wealth of other info available here: http://www.rcgroups.com/forums/showthread.php?t=828620
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February 28, 2010, 12:18:12 PM
anwar
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So you are just starting ? Smiley

It would help if you post pictures at various stages of the build, and provide details on the material being used (including smaller details like what glue etc).
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February 28, 2010, 12:38:22 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



Dear Anwar,
I actually started a week ago, it's almost half way through.
Build Material is a combination of biofoam 3mm - single side laminated, EPS, and Coroplast.
The fuselage is biofoam, the monoblock is EPS, the tail feathers are coro.
I've used coro for the tail feathers because they are quite tough, very very easy to work with and design, the downside being the weight. wing span is 100cm, length is 85cm, auw is planned at 650g. I have a spare 1050kv 175w(  Head Scratching )BL motor and 1800mah 25c lipo and 30A ESC for the electricals. Prop is a 10x4 slowflyer, servos are the 9g ones (all electricals from rcforall purchased almost a year back)
Will post pics soon once resized down from 2.5mb to something manageable.

Edwin
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Don’t be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.
— E. Hamilton Lee
 

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February 28, 2010, 12:56:01 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



 and about the glue,
I use a synthetic rubber adhesive which is very cheap - Fevicol brand(pic attached) to glue coro, eps, the credit card I used for the firewall and also the laminated sides of biofoam. I eats foam like anything, so anywhere requiring direct contact with foam, I use the normal fevicol if the time taken to dry is not an issue or else I use foam safe CA. Ideally I guess CA is good........ jus a matter of economics. I try to keep the cost as small as possble.
The TX and Rx is the 4 channel setup from HK. Using it for the past year and a half, absolutely no issues.

DSC03431.jpg
Re: LAZY BEE V2 - Yet another Scratchbuilt Project!
* DSC03431.jpg (22.99 KB, 600x450 - viewed 56 times.)
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Don’t be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.
— E. Hamilton Lee
 

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February 28, 2010, 01:03:18 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



here are the pics of the motor mounted to the firewall  Grin and soldered on to the ESC

Image005.jpg
Re: LAZY BEE V2 - Yet another Scratchbuilt Project!
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Don’t be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.
— E. Hamilton Lee
 

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February 28, 2010, 01:15:46 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



Here is the monoblock made of EPS. Nothing fancy, just four layers of 0.5 inch totaling 2 inches incorporating space for the battery, servos ESC and the Rx. The third pic shows the servo connections. Pushrods are construction binding wires from the hardware store. The battery can be loaded from the top. The battery bay is positioned way in the front to move the cg up front as the model tends to be a bit tail heavy because of the coro tail feathers.

Image002.jpg
Re: LAZY BEE V2 - Yet another Scratchbuilt Project!
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« Last Edit: February 28, 2010, 02:09:44 PM by martian2121 » Logged

Don’t be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.
— E. Hamilton Lee
 

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February 28, 2010, 02:06:01 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



The control surfaces are connected and the trims on the fuse completed. I connected the control horn for the elevator inside the fuse but on hindsight it seems like a pretty dumb idea as it is quite difficult to adjust. The trims on the fuse are all coloured packing tape. It's the reverse colour scheme of the original bee trims.

Image009.jpg
Re: LAZY BEE V2 - Yet another Scratchbuilt Project!
* Image009.jpg (22.91 KB, 640x480 - viewed 27 times.)
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Don’t be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.
— E. Hamilton Lee
 

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February 28, 2010, 06:07:30 PM
martian2121
It is possible to fly without motors, but not without knowledge and skill. What is chiefly needed is skill rather than machinery. — Wilbur Wright, 1902.
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Edwin



People, now I need some ideas.......
What material should I use for the wing....... The Biofoam that I have is too brittle that I believe I'll end up with a broken wing even before I end up at the field. I'm wondering if I can use coro for the wing as well like this: http://www.rcindia.org/index.php?action=dlattach;topic=1488.0;attach=613276;image
LAZY BEE V2 - Yet another Scratchbuilt Project!
made by our forum member 'R C'. I would like to make an underchambered wing with some dihedral. Any and all suggestions are welcome. Thanx
Edwin
« Last Edit: February 28, 2010, 08:14:53 PM by martian2121 » Logged

Don’t be a show-off. Never be too proud to turn back. There are old pilots and bold pilots, but no old, bold pilots.
— E. Hamilton Lee
 

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