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Author Topic: Igor Burger's Max Bee molded composite wing construction page  (Read 7204 times)

Online Brent Williams

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Igor Burger's Max Bee molded composite wing construction page
« on: August 03, 2015, 04:06:59 PM »
I was looking at Igor Burger's Max Bee facebook page today.  Looks like he is using a molded composite wing and stabilizer construction.  

Looks awesome!

I wonder if he is getting in the kit business?

Nearly 300 detailed pictures at the link below:
https://www.facebook.com/pages/MaxBee/363984487112995?sk=photos_stream&tab=photos_albums



« Last Edit: August 04, 2015, 01:39:02 PM by Brent Williams »
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Offline frank williams

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #1 on: August 03, 2015, 09:47:48 PM »
Igor ....
What is the wing construction ..... glass/balsa/glass ? ..... foam board?

Offline Dennis Moritz

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #2 on: August 03, 2015, 09:57:01 PM »
Build one of these.

Offline David_Stack

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #3 on: August 04, 2015, 06:25:11 AM »
Frank;

  Looking at the facebook page, in the folder titled "Installing Controls in Composite Wing", photo 39 (of 41) shows the wing trailing edge clearance for the flap controls.  Looks like the wing construction is glass over foam/herex...

r/
Dave

Offline Dennis Moritz

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #4 on: August 04, 2015, 06:49:24 AM »
Fiberglass over foam. No carbon fiber. Sounds CHEAP! It must be light. Otherwise whittling out the bellcrank would be a non factor.

Offline Doug Moon

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #5 on: August 04, 2015, 07:25:02 AM »
There are some other pics on there as well of his fuse parts and they look like they are milled out of balsa.  Does anyone know this for sure?  At first glance it looks molded but once you really look you can see its been cut out.
Doug Moon
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Offline Dennis Moritz

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #6 on: August 04, 2015, 07:58:57 AM »
Blue foam spar? The wing core looks cut, there's an edge. CNC foam cut cores? Impossible. His model looks like a Yatsenko Impact. What's the amber material mounting for the bellcrank? Looks like plastic or fiberglass. How could that be strong enough for a NATs pull test?

Offline David_Stack

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #7 on: August 04, 2015, 08:56:43 AM »
Good Morning Doug;

  Yes, Igor is milling his cowls, turtledecks, etc. via the 'might' of CNC.  See: http://stunthanger.com/smf/index.php/topic,33307.msg334356.html#msg334356 for examples.

Dennis;

  The bellcrank mount is fiberglass, and appears to be on the order to 1/10" thick (estimated based on photos using scale on angle also included in photo).  I would wager that it is sufficiently strong in compression/shear to pass a pull test.  I still believe the wings to be glass and foam, vacuum bagged in negative molds as 'skins', and then joined together.  The ends would be finished/trimmed after the top and bottom skins are joined.  Since there is no traditional spar as would be the case in comparable hollow-molded model sailplane wings, the composite skins are performing 'double duty' as the spar and again, it seems Igor has determined that they are strong enough in bending to not require a spar any more robust than the blue foam.  It appears there is no carbon tow within the wing layup.

Offline Dennis Moritz

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #8 on: August 04, 2015, 05:58:03 PM »
Of course. Vacuum bagging. CNC machined materials. Fabulous.

Offline Wynn Robins

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Re: Igor Burger's Max Bee molded composite wing construction page
« Reply #9 on: August 04, 2015, 06:21:49 PM »
one of the local fliers bought the kit - the composite wings are heavier than his other built up bees (he has made 3)

 very nice kit  - probably one of the best I have ever seen as fit goes !!!!  - but not as light as you would imagine
In the battle of airplane versus ground, the ground is yet to lose


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