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Cox Engines Forum  :: Models and Modeling :: Models and Modeling

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Post  Ricksrod Wed Nov 20, 2019 7:36 pm

While waiting for some good weather to Give the Kinner another try I thought I would start on my Sig Deweybird. I picked up a couple of .020's a while back and thought I would see how the C/L Deweybird would fly with one. It should weight in a tad above 3oz ready to fly.Sig Deweybird 1/2A 20191112Sig Deweybird 1/2A 20191114
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Post  NEW222 Wed Nov 20, 2019 8:03 pm

Nice, very nice!
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Post  dckrsn Wed Nov 20, 2019 9:18 pm

Wow!, brings back memories. Keep us posted.  Hand Shake
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Post  Oldenginerod Thu Nov 21, 2019 4:02 am

I've got two still unbuilt in box. One day Huh...
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Post  Ricksrod Thu Nov 21, 2019 8:21 am

Oldenginerod wrote:I've got two still unbuilt in box.  One day Huh...

Do you plan to power them with .049's? I'm hoping the little .020 has enough power. I'm thinking if I can keep it light it should do ok.
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Post  Mark Boesen Thu Nov 21, 2019 2:22 pm

you'll need a .049, a Pee Wee .020 is going to be marginal plus you'll need shorter lines.
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Post  Oldenginerod Thu Nov 21, 2019 3:15 pm

Ricksrod wrote:
Oldenginerod wrote:I've got two still unbuilt in box.  One day Huh...

Do you plan to power them with .049's? I'm hoping the little .020 has enough power. I'm thinking if I can keep it light it should do ok.

Probably a Golden Bee like it shows on the box. It definitely states .049 on the box without option for anything smaller. A model like this doesn't need anything super-powerful, but you have to have it at least circling with some authority. I've flown underpowered control line before- not fun.
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Post  Ricksrod Thu Nov 21, 2019 4:48 pm

Oldenginerod wrote:
Ricksrod wrote:
Oldenginerod wrote:I've got two still unbuilt in box.  One day Huh...

Do you plan to power them with .049's? I'm hoping the little .020 has enough power. I'm thinking if I can keep it light it should do ok.

Probably a Golden Bee like it shows on the box.  It definitely states .049 on the box without option for anything smaller.  A model like this doesn't need anything super-powerful, but you have to have it at least circling with some authority.  I've flown underpowered control line before- not fun.

I had a Cox Litl Stinker with an 020 when I was a kid. It was under powered too. As a kid I should have used shorter lines but never thought of it. I used the same ones as the PT19. Not sure of the weight of the Stinker but I'm thinking it's around 3oz with motor. If the Bird is too slow I'll drop in an .049.
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Post  ticomareado Thu Nov 21, 2019 7:19 pm

If you want to play with the Pee Wee on a balsa c/l model try a CG Swordsman 18 built with light wood. Use Spectra for flying lines (max. 25' length) and no windy weather flying.
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Post  Ricksrod Thu Nov 21, 2019 10:56 pm

These balsa planes look so good in the raw. I'm thinking of leaving this one natural wood with a sealer applied...any thoughts?

Sig Deweybird 1/2A 20191116
Sig Deweybird 1/2A 20191117
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Post  Marleysky Fri Nov 22, 2019 12:21 am

Oh, you definitely need to “seal” and fuel proof the raw balsa. Usual protocol is to finish the plane in the desired paint scheme. Your idea of leaving it “raw” is a good one, as it saves you time, more time for flying!  Then, if it flys well you can add paint or decals to satisfy the sticker police!

Only afterthought was, once you have a few good flights, the plane will be covered with a layer of castor. It may not be easy to paint over oily surfaces, without a thorough cleaning.
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Post  Ricksrod Sat Nov 23, 2019 9:03 pm

My Sig Deweybird aka "Balsa Baby" is ready fo a motor. I gave her two coats of shellac and then 3 coats of Minwax spare urethane. We will see how she holds up to the fuel. Weather permitting I'll take her for a flight within a week.Sig Deweybird 1/2A 20191118
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Post  dckrsn Sat Nov 23, 2019 9:10 pm

She's a beaute! Enjoy the inaugural.
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Post  NEW222 Sun Nov 24, 2019 12:02 am

While I have personally myself used the Spar varnish, I have used the regular Minwax oil based varnish in the black can, and it is fuel proof to nitro fuel.
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Post  getback Sun Nov 24, 2019 5:58 am

She looks really Good !! Flight report ! This Site Rocks! What engine did you decide on ?
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Post  Ricksrod Sun Nov 24, 2019 9:16 am

getback wrote:She looks really Good !! Flight report ! This Site Rocks! What engine did you decide on ?

I'm going to start with the .020. If it's too underpowered I have an .049 waiting in the wings.👍
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Post  getback Sun Nov 24, 2019 3:41 pm

Cool TD / Pee Wee / bee surprised at the power/ Small Cox Logo Very Happy
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Post  Ricksrod Tue Nov 26, 2019 1:53 pm

Balsa Baby has her .020 and is ready to go. I'm going to try her on 20' lines. Any suggestions?

Sig Deweybird 1/2A 20191120
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Post  Ken Cook Tue Nov 26, 2019 3:38 pm

My suggestion would be to verify the CG and make certain the Pee Wee isn't too light.
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Post  oldguy Thu Nov 28, 2019 11:17 am

NEW222 wrote:While I have personally myself used the Spar varnish, I have used the regular Minwax oil based varnish in the black can, and it is fuel proof to nitro fuel.


Is this what you are referring to?
https://www.bing.com/images/search?view=detailV2&ccid=g1%2fgbD%2fR&id=E09091BF305B0E9C5293EDE5A05DA9BD5E0574BE&thid=OIP.g1_gbD_RYtlVrSrc7GZlLQHaHa&mediaurl=https%3a%2f%2fmobileimages.lowes.com%2fproduct%2fconverted%2f027426%2f027426155053.jpg&exph=900&expw=900&q=minwax+oil+based+varnish&simid=607986073548554599&selectedIndex=17&ajaxhist=0
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Post  Ricksrod Tue Aug 11, 2020 4:10 pm

I finished the Dewey bird but had trouble keeping the little .020 running. Rather then just letting it sit I converted it to electric RC. Not very pretty with all the additional baggage. I took it out for it's maiden and it flew! Just a short flight but I think it will be ok.

bSig Deweybird 1/2A Deweyb10
Sig Deweybird 1/2A Dewybi10
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Post  Iceberg Tue Aug 11, 2020 5:12 pm

I run my Dewey Birds with .049. I think the .020 could do it but I feel the bird is a touch heavy and the .049 at 18,000 RPM with 6x4 prop does great maneuvers and all. But with the .020 likely pretty tame. Plus the fuel tank is very small on the peewee.

Nice job on the plane!

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Post  Ricksrod Tue Aug 18, 2020 6:00 pm

I took the Dewey Bird out for it's first RC flight. A little shaky but it flew. Needs  a little balance.

https://youtu.be/vrCS_X7Cxbs
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Post  getback Wed Aug 19, 2020 7:12 am

Not bad for a start considering the 22 " W/S and all the gear Very Happy
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Post  roddie Wed Aug 19, 2020 7:19 pm

Hey Ricksrod, Happy 1st CEF anniversary at Midnight! Beer Cheers

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