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Author Topic: Mugwump build  (Read 289 times)
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DougFunny
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« on: April 26, 2021, 06:56:38 AM »

So, this seemed a lot simpler to build on paper. A few notes:
First, the dimensions given for the stab polyhedral seem extreme. I went ahead and made it to spec, but is this going to work?
Second, the rib templates on the drawing have the stringer notches in the wrong place for a few pieces. Figured this out after laser cutting. Oh well, that’s what balsa filler is for.
Third, pinching the bottom fuse pieces together to form the triangle. He spec’d hard 1/8”, not sure how I’m going to pull that off. Steam maybe?




Ratz Edit: rotated attached picture.

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Mugwump build
« Last Edit: April 26, 2021, 09:19:36 AM by Ratz » Logged
USch
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« Reply #1 on: April 26, 2021, 07:56:15 AM »

For a Perryman model tail dihedral looks right to me. He was unique with model design.

Urs
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DougFunny
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« Reply #2 on: May 02, 2021, 06:28:36 PM »

OK, the project is coming along nicely, but I’ve confused myself... happens a lot. Looking at the prop blade drawing, if I sanded to the contour shown, wouldn’t I end up with a clockwise rotating prop? The drawings also show a right hand thrust offset for the nose, so this can’t be? Only other possibility is the scimitar sweep goes forward instead of back? Surely not.

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USch
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« Reply #3 on: May 03, 2021, 04:10:05 AM »

Your definitely right!
The blade is drawn the wrong way round. Of course the sweep goes back, not forward. For sure the prop is turning clockwise as every rubber prop.
I don't think G. Perryman was lefthanded.

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BG
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« Reply #4 on: May 03, 2021, 08:39:37 AM »

The prop blade is shown from the rear view (pilots view). Rotates clockwise as shown.

BG
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DougFunny
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« Reply #5 on: May 03, 2021, 11:27:33 AM »

Great, at least I only sanded one of the two blades backwards before I noticed... Roll Eyes
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