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Davis DA-5A (Read 673 times)
Reply #23 - Mar 14th, 2020 at 7:14am

New Builder   Offline
Senior Member
Amherstburg, Ontario, Canada

Posts: 1220
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Brad - This is an exceptional model, well done.
Mike
 

"Skill comes by the constant repetition of familiar feats rather than by a few overbold attempts for which the performer is yet poorly prepared." Wilbur Wright
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Reply #22 - Mar 13th, 2020 at 6:51pm

Sky9pilot   Offline
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Stick & Tissue
Kelso, WA 98626 USA

Posts: 11456
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Just a guess, but probably counter balances for the elevators on the real bird!
 

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 #21 - Mar 13th, 2020 at 5:41pm

Brad   Offline
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Portland, Oregon area

Posts: 704
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quick question.  What are those 'rods' on the tops of the V-Tail and what is their purpose?

I think they look cool, but there has to be a reason.

Brad
 

It's much easier to ride the horse in the direction its going.
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Reply #20 - Mar 13th, 2020 at 3:13pm

Brad   Offline
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Portland, Oregon area

Posts: 704
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Tom, I'll take a look at the CG area on the site.  Thanks.

Thank you for the ideas for my doping problem.  I will definitely give doping one side, let it tighten up, then the other a try.

The Davis DA-5A is done!!  Final weight after balancing is 27 grams.   

I finalized mounting the wheel retainers. Applied the 'step area' on the wing and applied the experimental stickers.  I might add exhaust stacks, or not and just move on.

I wonder what will catch my interest for my next build??

Brad
 

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It's much easier to ride the horse in the direction its going.
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Reply #19 - Mar 13th, 2020 at 11:12am

Sky9pilot   Offline
Administrator
Stick & Tissue
Kelso, WA 98626 USA

Posts: 11456
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If the rear wheel/main gear are plastic, you might consider making balsa or foam wheels to lighten things up so less weight will be needed to balance the aircraft. 

We have a section on figuring the cg of models you might want to take a look at.  With the "V" tail you might want to calculate span by length of each panel and distance across the fuselage for that figure.
 

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 #18 - Mar 13th, 2020 at 7:11am

New Builder   Offline
Senior Member
Amherstburg, Ontario, Canada

Posts: 1220
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Brad - The model is looking just great, like the colors and trim.

I airbrush Eze Dope at 30/70 ratio (dope/water). I go slow and apply several layers much like using Krylon. Takes a bit of patience but stops that nasty sticking of the two sides.
Mike
 

"Skill comes by the constant repetition of familiar feats rather than by a few overbold attempts for which the performer is yet poorly prepared." Wilbur Wright
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Reply #17 - Mar 12th, 2020 at 2:04pm

pb_guy   Offline
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So I'm just a kid at heart.
Youbou, BC, Vancouver Island

Posts: 1597
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When painting with non-volatile finishes, I have used a straw and suction by mouth to separate surfaces that stick together. If you have a vacuum with a hookup to a 'straw', you could use the same idea for volatile paints, but you would have to greatly reduce the suction.
ian
 
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Reply #16 - Mar 12th, 2020 at 11:47am

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 704
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I attached the wings and back wheels last night.  It is tail heavy.  I'm thinking I can sneak some lead weight into the front chin air intake to hide it.  The CG is not shown on the plans, so I'll have to play this that.  Current weight is ~ 25grams.

Just a few more details and it will be done.  I'm not sure I love the colors. But it sure is colorful  Smiley

Question:  does anyone have a good technique for doping thin tail surfaces and not having the two side stick together in the middle?  Can you dope only one side at a time and not warp the structure?  I find I have to use a pin to snag and lift the tissue to separate the top/bottom.

Brad
 

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It's much easier to ride the horse in the direction its going.
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Reply #15 - Mar 11th, 2020 at 9:39am

Sky9pilot   Offline
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Stick & Tissue
Kelso, WA 98626 USA

Posts: 11456
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Brad,
You sure make those little racers come alive!  Well done! 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 #14 - Mar 11th, 2020 at 7:10am

New Builder   Offline
Senior Member
Amherstburg, Ontario, Canada

Posts: 1220
****
 
Color, canopy and details all coming together nicely.
Mike
 

"Skill comes by the constant repetition of familiar feats rather than by a few overbold attempts for which the performer is yet poorly prepared." Wilbur Wright
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Reply #13 - Mar 10th, 2020 at 10:24am

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 704
****
 
I have this plane almost completed   Smiley

Covering completed with only minor wrinkles here and there.  Two coats of Eze Dope at about 20 to 1 (water/dope).  I then applied the stripes with UHU blue glue stick, then one coat of 20:1 EZE dope.

I cut and attached the canopy last night and continued to adjust my spinner mount.  I was waiting to attach the wings until I had the canopy attached.  I thought it would be easier to attach the canopy without having to work around the wings - and it was much easier.  So up next is mounting the wings, wheels and attaching the spinner.

Brad
 

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It's much easier to ride the horse in the direction its going.
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Reply #12 - Mar 6th, 2020 at 3:07am

Sky9pilot   Offline
Administrator
Stick & Tissue
Kelso, WA 98626 USA

Posts: 11456
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Looking good.  I like the color scheme!! 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 #11 - Mar 5th, 2020 at 1:53pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 704
****
 
I made good progress the last couple of days - thanks to the Corona virus!!  I got a cold - little cough and sniffles, so I need to work from home  Smiley  which also gives me time to break away and do a bit of building.

I started to cover the plane.  Got some advice last night from my son who has artistic ability and I liked his suggestions.  I'm home again today, so more progress soon.

Brad
 

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It's much easier to ride the horse in the direction its going.
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Reply #10 - Mar 2nd, 2020 at 3:47pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 704
****
 
It's almost time to start covering  Smiley  This weekend, I found some Isaki in my supply of colors I like.

I finally figured out the V-tail.  I will cover it separately before attaching it.  The same is true for the canopy top.  I also am planning to use a previously turned spinner I never used.  I can't find a picture of this plane with matching spinners, so this should be just fine.

Brad
 

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It's much easier to ride the horse in the direction its going.
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Reply #9 - Feb 25th, 2020 at 1:55pm

Brad   Offline
Senior Member
Portland, Oregon area

Posts: 704
****
 
I got the front of the fuselage looking better and now I'm working on the canopy top.

I still have to figure out how to attach the V-Tail.  The plans are light on detail there.

Brad
 

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It's much easier to ride the horse in the direction its going.
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