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Author Topic: Bad Axe  (Read 3310 times)
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skyrocket
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« Reply #25 on: December 22, 2016, 01:28:19 PM »

Good looking model !...George certainly knows his beans...
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skycafe
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« Reply #26 on: December 22, 2016, 06:44:58 PM »

I am almost finished with covering Bad Axe. Here I am sticking on the tissue strip stiffeners I use on just about every non scale plane I build. Particularly if the design is a little floppy, like most embryo wings. tomorrow, I will apply a set of the strips that go in the opposite direction in each rib bay. Than I will pin down the wing with any warps I want set, and shrink the strips. Then cover in the usual way. It stiffens the wing by a very large factor, and makes the wing much less likely to develop unwanted warps with a tiny weight gain. Too little to fret about.
Try this, you will like it.

OK, this just might be 'tip of the year!'   (roll it into next year)
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ScienceGuy
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« Reply #27 on: March 08, 2017, 11:04:17 AM »

http://scienceguyorg.blogspot.com/2017/03/bad-axe-embryo-thermals-do-not-care.html  Is my build report on the Bad Axe, I think too light of longerons were used causing me trouble with covering the fuselage. This is wood you provide, not in the kit. 

Bill Kuhl
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skyrocket
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« Reply #28 on: March 08, 2017, 02:09:13 PM »

Still a good looking model and nicely designed...I used to make that mistake in choosing too light a wood for longerons so i started to look for rock hard 1/16" sheet
and strip it...the only problem with that is the ability to place the razor blade at the right angle...I know this is against common practice but soft 3/32" square in place of 1/16" squares works out pretty well with a slight weight gain but at around 20 grams you can still use 4 x 1/8" braided with a carved 8" prop...
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ScienceGuy
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« Reply #29 on: March 08, 2017, 02:12:03 PM »

Using 3/32" might be worth a try if I build another one.

Bill Kuhl
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wyshynski
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« Reply #30 on: November 01, 2017, 08:01:51 PM »

Hey Dohrm:

Wish I had seen your thread before completing my Bad Axe wing, which definitely needs a bit of strengthening. Thanks for sharing.

Regarding longerons, I wound up using 1/16 basswood, which seemed to work out well. My total weight without rubber was 19.2 grams.          

The short kit is great and at a great price. I would also recommend the dimer of the Martin MO-1 which flies really well.

BTW, Dohrm, beard looks good. Maybe we could have a mass launch at the next Thermal Thumbers contest?

Best,

James
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dohrmc
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« Reply #31 on: November 05, 2017, 10:24:45 PM »

You missed a great day at the sod farm today at the Turkey Shoot. Light winds, perfect temps.  Some great flights were made, unfortunately none by me.

We had 9 Blue Ridge Specials at our mass launch. Looked like a bunch of bees zipping around. Got pipped by twenty seconds, but a good time had by all.

Thanks for the comment on the beard, my wife tells me I look like Heidi’s Grandpa. (Not meant to be a compliment).

Glad you are back at the field, April will be here before we know it.
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