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TOM AKERY PLANS COOKUP? (Read 12848 times)
Reply #349 - Oct 16th, 2019 at 9:15am

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Amherstburg, Ontario, Canada

Posts: 1051
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On the home stretch now and started the fuselage covering. Began on the rear deck and after coming back to the building board got the news that stripping the new tissue was needed and some support added to the underside of three stringers and recover. Just one of those things on the trail of scale modelling.
Mike
 

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Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #348 - Oct 12th, 2019 at 11:33am

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Amherstburg, Ontario, Canada

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Flying surfaces covered and doped. Some minor touch up work on the fuselage plus the gun ports and it's off to the color part of the build.
Mike
 

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #347 - Oct 10th, 2019 at 7:58am

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Amherstburg, Ontario, Canada

Posts: 1051
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Very glad to see you are back on the Fang, everything looks great and was waiting to see the canopy and you are right, at that size it is a big job. The span on my Fang is around 20" and that canopy is a bit big also. I'm making a new plastic holding device for my vac box as the old one had no guides and a too simple method for holding the plastic and it would move around when heated and landing the frame was too off center. Always something to do.
Mike
 

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #346 - Oct 9th, 2019 at 12:37pm

Sky9pilot   Offline
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Kelso, WA 98626 USA

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As is the usual case...life sometimes gets in the way of modeling.  Had inlaws in town and had a good time with them and got them back to the airport (Portland PDX) always interesting because the Air Force shares the airport on the south side with F-15's as interceptors.  Didn't see any F-15's flying but still fun to see these big pieces of metal flying by!!!   

Have to dig out the chop saw for the canopy plug for the "Fang"... at 27" span she over maxes the balsa block sizes I had so had to order some balsa blocks.  Got a box of assorted blocks/left overs from the balsawood store.  Now to carve the plug for vacuforming.  Got to build another vacuform box, as the other was lost in the move from Texas back to CA...always something to do in keeping the modeling supplies and tools up to date!
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #345 - Oct 5th, 2019 at 3:25pm

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Amherstburg, Ontario, Canada

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Tom - Thanks for the good words and thanks to both you and Alf for pulling me out of my slump. Alf's right, this should be fun and it is again. Thanks again.
Mike
 

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #344 - Oct 5th, 2019 at 10:46am

Sky9pilot   Offline
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Mike...she's looking very nice!  Wish my bones on my Fang looked that good!!!
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #343 - Oct 4th, 2019 at 8:23am

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Greater progress than ever, wings attached to center section, fuselage nearly complete for covering, just some final sanding and the gun troughs and tissue going on. Tissue pulled the vertical stabilizer out of square, I've never had tissue pull that much. Wetted the main spar and fastened it to the building board twice and finally got it back into line, covering the other side should stabilize that. Should be able to finalize the fuselage in the next two or three days, final sand the wings and, hopefully cover the entire plane. Did some testing with tissue on the solid surface but when I opened the dope jar there was a smell of rotten eggs and the water color had precipitated out of solution and hardened on the bottom. Got it all back into solution and it went on OK but the smell has me concerned. Going to the art supply store today and will get new water color and maybe start over if the dope seems bad.
Mike
 

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Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #342 - Oct 1st, 2019 at 7:33am

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Amherstburg, Ontario, Canada

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You are absolutely right, it is supposed to be fun but my quest for self-improvement does get in the way that's why there was a two week break to get my "mojo" back. All is well now and the fun returned when I started rebuilding the wing breaks and the center section. I'm also a subscriber to the five P principle but there are those times when...
Mike
 

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #341 - Sep 30th, 2019 at 10:12am

alfakilo   Offline
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St Louis, MO

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New Builder wrote on Sep 29th, 2019 at 7:29am:
...the wing saddle has been reworked twice to get the wing to even remotely fit properly.


Building a kit or scratchbuilding from a plan, no matter. I think one of the major irritants is getting a wing to fit. If we are trying to add a little incidence that can leave the trailing edge hanging below the bottom contour or conversely, have the leading edge a little higher than it should look.

The Five Ps is always a good idea! That and a lot of patience! Sometimes the urge to chuck it is huge...then it's time for a break!! This is supposed to be fun!
 
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Reply #340 - Sep 30th, 2019 at 9:28am

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Decided to repair the center section as well since it contains the spars and the ribs that match the wings. It was a bit embarrassing to see how out of square the ribs were however the correction is well under way.
Mike
 

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #339 - Sep 29th, 2019 at 7:29am

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Amherstburg, Ontario, Canada

Posts: 1051
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AK - Your note was right on target as the same thing happened to my Interstate Cadet with the wing panels joining rib bending in. Had to strip the tissue there and add a rib to the offending rib to get it back into alignment. My plan is for the solid rib on the wing panel to be 3/32 and maybe same for the center section. I really need this wing since the wing saddle has been reworked twice to get the wing to even remotely fit properly. This plane has been a test from the beginning, at one point I was standing over the garage garbage can with the fuselage in hand but thought better of that plan, that was not the way to go, can't give up that easily.
Mike
 

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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Reply #338 - Sep 28th, 2019 at 8:17pm

Sky9pilot   Offline
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Kelso, WA 98626 USA

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Good point Ak...especially if your rib balsa is very soft and light...which is what we try to do, build light. A solid sheet rib on the center section each side would help to eliminate that.  Smiley
 

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #337 - Sep 28th, 2019 at 1:50pm

alfakilo   Offline
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Retired USAF and TWA.
St Louis, MO

Posts: 943
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One note of caution regarding shrinking the tissue on split or cracked rib wings. I just had this happen to the P-75 wings where the outer panel joins the center section.

The tissue shrank and pulled the top of the end ribs slightly bowed inwards. The result is a lousy joint when joining the panels. I fixed this by gluing a 1/16" strip along the top of the rib and then sanding to fit.

I'll borrow your picture to show what I mean:
 

wing_fit.jpg (45 KB | 4 )
wing_fit.jpg
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Reply #336 - Sep 28th, 2019 at 11:07am

Sky9pilot   Offline
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Kelso, WA 98626 USA

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Looks like you're in good shape with the current wing.  Just rebuild the center section and take off the upper outer ribs and sand the spars to the needed dihedral. Replace the outer ribs with solid ribs and then glue the outer panels to the solid ribs. Here's a low tech process if you're wondering how to set the angle... take a strip of cardboard etc. the length of the outer panel and pin it to some balsa you can pin to the board.  Raise one end to the desired dihedral and jig it in place so you can take a 90* angle and mark the lower end with a vertical line. Once this has been done you'll have the angle you need to sand the spars to.  Just cut the vertical line (now at the proper angle) chop off the unnecessary length and you have a template you can use by flipping it over and use to measure the line on each spar of the center section on each side.  Hope this makes sense. I'll draw up a quick and dirty illustration in a few minutes and post it with this post.  If you flip the strip of cardboard (etc.) top edge to bottom edge you'll have the angel for the center spars. Mark each side and sand to mark.
 

angle_tool.JPG (28 KB | 4 )
angle_tool.JPG

If God is your Co-pilot...switch seats...
Your attitude will determine your altitude!- John Maxwell
And ye shall know the truth, and the truth shall set you free. Jn 8:32
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Reply #335 - Sep 28th, 2019 at 10:51am

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Amherstburg, Ontario, Canada

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After about two weeks of not wanting to touch any of my planes or plans, went to work this morning and cut the wing apart to add dihedral and will now be making a cracked rib wing. It was simply too fragile for any more work but an interesting exercise nonetheless.
Mike
 

Wing_Apart.jpg (111 KB | 4 )
Wing_Apart.jpg

Have no fear of perfection - you'll never reach it. (Salvador Dali 1904 - 1989)
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