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Author Topic: Downsized Keil Kraft Ace  (Read 149 times)
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Norf
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« on: June 29, 2020, 05:52:34 AM »

Hello!
I am pretty new to freeflight and my first plane/kit was a Keil Kraft Ace.
I always liked the look of the models from this time area and after I built the KK Ace and flown it I was totally addicted  Grin

I then build a few planes around 18" and decided I want to build a small Ace too! The original one is 30" and so I downsized the plan to 60% what gives you a wingspan of 18"  Cool

First step was to cut out all stripes needed and I made some templates for ribs and stuff like that with my 3D printer.
This method makes cutting the parts super easy and fast!

Regards Norbert
Attached files Thumbnail(s):
Downsized Keil Kraft Ace
Downsized Keil Kraft Ace
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Norf
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« Reply #1 on: June 29, 2020, 05:56:19 AM »

Here you can see the cutted parts and the first building steps of wings and tail section.

Also I build the fuse with the stripes and it turned out all pretty well.
Attached files Thumbnail(s):
Re: Downsized Keil Kraft Ace
Re: Downsized Keil Kraft Ace
Re: Downsized Keil Kraft Ace
Re: Downsized Keil Kraft Ace
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Norf
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« Reply #2 on: June 29, 2020, 06:06:05 AM »

After all balsa work was done i sanded all the edges and added the nose block.

After testfitting everything I started covering the plane with tissue.
I use glue stick to apply the tissue and then fix the edges with a 50/50 mix of water and PVA .
If all is finished I shrink the tissue with a 3% Eze Dope mix and a atomizer.

Because I have to build in my working room at the moment I can only use Eze Dope because it does not smell.

After shrinking is done I add 2 layers of a 30% eze dope mix with a brush to make it look like I want it.

After covering is done I mounted everything.
Wheels are also 3d printed and the weight is similr to balsa wheels.
I use a 6 inch Prop with a 20 inch loop of 1/8 FAI Rubber in this plane what gives me not to much power and endurance.
With that setup the Ace is around 25 gr. and I can wind around 1800 turns on it.

With 1200 turns I get around 1 minute flight time

Regards Norbert
Attached files Thumbnail(s):
Re: Downsized Keil Kraft Ace
Re: Downsized Keil Kraft Ace
Re: Downsized Keil Kraft Ace
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TheLurker
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« Reply #3 on: June 29, 2020, 06:18:42 AM »

I like that. Very much.
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g_kandylakis
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« Reply #4 on: June 29, 2020, 06:48:59 AM »

Hi Norbert, welcome !

You have found probably the best place for free flight models and this kind of aeromodellibg...

Post the videos as well please...

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Norf
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« Reply #5 on: June 29, 2020, 06:52:25 AM »

Hi again thank you very much Smiley

Here you can see some flights of it!
Subscribe my chanel if you like I made a new one specially for free flight Videos!

https://youtu.be/iQEYD7b5gns

Norbert
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Indoorflyer
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« Reply #6 on: June 29, 2020, 08:15:33 AM »

What a pretty Ace!  Nice video too...
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