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Author Topic: Dare Aeronca 11AC Superchief RC conversion  (Read 1224 times)
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meatbomber
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« on: December 13, 2017, 03:32:27 PM »

Need to use this time where the building juices are flowing to make some inroads on my kit stash. So the next thing to come out of the shelf is a Dare Laser cut kit of an Aeronca Superchief.

It’s a 28.5in wingspan rubber model, supposed to weight only 1.13oz (wow light) I don’t know I’ll be able to build it that light but let’s try.

The plan is to use again an Ar6400 and now the question is wether to stick with 1S and an 8mm geared motor, or again go 2S and Brushless.. I’ll see when I have more of an idea how heavy I’m going to get.

Lunch break had the elevator framed up and 2 hours in the evening the vertical stab and rudder as well as the wings.
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meatbomber
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« Reply #1 on: December 14, 2017, 01:53:43 PM »

This one is much less stiff than the Waco was and I’m wondering when pre-shrinking tissue is needed?
Are you guys regularly preshrinking the tissue ? And how and when ? Smiley
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meatbomber
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« Reply #2 on: December 16, 2017, 03:59:56 AM »

Got a bit more done yesterday.

Fuselage sides are finished and joined. So far no stringers to help access for RC installation. I’m still thinking on where and how to make access.

Cheers
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Pat D
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« Reply #3 on: December 16, 2017, 08:47:15 AM »

Coming together nicely
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Konrad
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« Reply #4 on: December 16, 2017, 04:18:53 PM »

This one is much less stiff than the Waco was and I’m wondering when pre-shrinking tissue is needed?
Are you guys regularly preshrinking the tissue ? And how and when ? Smiley
True. But the structure still looks rigid enough that pre-shrinkage is NOT necessary
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Cut it twice and it's still too short!
meatbomber
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« Reply #5 on: December 26, 2017, 06:01:14 AM »

Ok I’ll take that advice and put the tissue dry and ty not too shrink too hard Wink

I’ve since finished stringering the fuselage, installing all the RC components and the landing gear wire and shaping the nose block. So I’m basically ready to cover Smiley
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Konrad
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« Reply #6 on: December 26, 2017, 11:42:42 AM »

Really liking the light structure of your Super Chief.  How are you attaching the struts?  Where is your battery hatch? Some observations, on my Champ I put the struts through the wing and attached them to both the upper and lower spars. I also used a tie wire through the fuselage tying both struts to each other and to the fuselage. This has really paid dividends  during flight test and with my ground loop landings.

I see you are using balsa as the elevator joiner. Might I suggest adding a wire “U”  joiner, to tie the elevators together. As to shrinking the tissue I’d use 70% isopropyl alcohol on the tail surfaces.

BTW: My Champ is flying great at 137grams. She is a full house outdoor flier. With your larger wing weight won't be an issue.
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Re: Dare Aeronca 11AC Superchief RC conversion
Re: Dare Aeronca 11AC Superchief RC conversion
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Cut it twice and it's still too short!
meatbomber
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« Reply #7 on: December 26, 2017, 12:56:13 PM »

Well the battery hatch is done with a flap of tyvek paper and a magnet to fold it closed look for the pics attached. There is no other hatches, if I need to do maintenance it will be with a scalpel and surgery first Wink
Lazy I know, I think that at around 100-140g is a sweetspot for models this size, mine will be pretty much an indoor floater.. Rudder Elevator and throttle only.

The next model I have my sights set on in the same size range will be a bit heavier so that one will probably use real servos and a slightly bigger power system too.

The struts I do t have yet, but probably with a piece of wire glued ibto the wing and a wire eylet at the fuselage joint.
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Re: Dare Aeronca 11AC Superchief RC conversion
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meatbomber
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« Reply #8 on: December 29, 2017, 11:03:57 AM »

Not much progress to report, holidays not leaving much building time Wink
But at least I got to cover the tail surfaces and the wings. It’s so satisfying seeing the tissue go taut I’m in love with that part of the build !
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steveair2
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« Reply #9 on: December 29, 2017, 01:36:55 PM »

Very nice work.  I'm just getting into the smaller models.  I received two Stevensaero model kits for Christmas.  The Foker D7 and the Liddlegee.
They look like very nice kits.


http://www.stevensaero.com/StevensAero-LiddleGee-TM-Indoor-Backyard-Ultra-Micro-Kit.html
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meatbomber
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« Reply #10 on: December 29, 2017, 05:43:31 PM »

You’ll have a blast believe me Smiley just keep It as light as possible !
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meatbomber
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« Reply #11 on: January 01, 2018, 04:00:24 PM »

Doped and hinged the tailsurfaces and in the process managed to crush the vertical stabilizer partially.. so had to rebuild and recover, also added some bracing this time Wink

Next got the fuselage covered. One question for the artists on this forum, how do you guys get a nice and even overlap ? For example from fuselage top to the sides ?

So far I’m quite happy with the covering job, the tissue shrank real well and there’s only some small places where there is some wrinkles left that won’t be visible when it’s flying.
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Re: Dare Aeronca 11AC Superchief RC conversion
Re: Dare Aeronca 11AC Superchief RC conversion
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Balsa Ace
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« Reply #12 on: January 01, 2018, 05:01:13 PM »

Very nice work.

Scott
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« Reply #13 on: January 01, 2018, 05:30:34 PM »

Quote
Next got the fuselage covered. One question for the artists on this forum, how do you guys get a nice and even overlap ? For example from fuselage top to the sides ?

I've had success where I let the tissue overhang and use a piece of 150 - 200 grit sandpaper to sand the tissue in long strokes.  After a couple of swipes you can gently separate the overhanging tissue from the fuselage.  If you do it right the sandpaper will not touch the underlying balsa frame.

Marlin 
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meatbomber
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« Reply #14 on: January 29, 2018, 02:24:48 PM »

Sorry for letting the thread lie dormant so long but I’ll try to make up for it.
First I had a build break due to holidays with the family, then freshly refreshed I wanted to finish the Model and started painting. First white then yellow.. and it was complete disaster ...
My airbrush skills are just not up to it and I added 7g of weight while at the same time producing a horribly inconsistent paintjob.

Sooo I ripped all the covering off again to start from scratch directly in yellow.
In the process of taking the covering off I broke a whole lot of sticks and while the fuselage was salvaged the wings and tailfeathers where binned!

As I liked the way th Waco wings built much better than the original wings and also my new CNC router just arrived I copied Peter Rakes profile and cut my own ribs Smiley
Tail surfaces where also built with Rale style laminations, the final result is much better than before and only weighs 2g more.

Then on to covering. Got some dare light weight cub yellow tissue and covered the whole airframe in that, today I finished trim and windows. So just some cowl details missing and decals on the tail and the struts, the assembly and maiden Smiley
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Re: Dare Aeronca 11AC Superchief RC conversion
Re: Dare Aeronca 11AC Superchief RC conversion
Re: Dare Aeronca 11AC Superchief RC conversion
Re: Dare Aeronca 11AC Superchief RC conversion
Re: Dare Aeronca 11AC Superchief RC conversion
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meatbomber
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« Reply #15 on: February 03, 2018, 06:43:25 AM »

Finished Smiley
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meatbomber
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« Reply #16 on: February 04, 2018, 09:28:06 AM »

And a flying video Smiley

https://youtu.be/cjyUllSrJHw
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Glenn (gravitywell) Reach
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« Reply #17 on: February 04, 2018, 02:08:55 PM »

What a beautiful little bird!  And it looks right at home in the sky.  Good job!
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Glenn Reach
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« Reply #18 on: February 04, 2018, 05:15:42 PM »

Well done!

Scott
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