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-   -   $100.00 Twin Build Contest 337 Cessna (http://www.Wattflyer.com/forums/showthread.php?t=73578)

CHELLIE 04-18-2014 03:02 AM

$100.00 Twin Build Contest 337 Cessna
 
My Choice for The 100.00 Twin build Contest, Will be the Cessna 337 Sky master, Wish me Luck :D


http://img.planespotters.net/photo/2...Net_273873.jpg

xmech2k 04-18-2014 04:02 AM

Sweet, Chellie! One of my favorites!

pmullen503 04-18-2014 12:06 PM

[popcorn]

hayofstacks 04-18-2014 07:37 PM

I think tower hobbies had a .40 sized model of one of these designed to run two .25 nitros. i really wanted to build a non scale.version of this plane for a while. either that or a variaeeze or other burt rutan model. i like the idea of a fully functional canard, but I'm afraid to actually impliment.it.

good luck chellie.

xmech2k 04-18-2014 09:20 PM

Quote:

Originally Posted by hayofstacks (Post 945790)
I think tower hobbies had a .40 sized model of one of these designed to run two .25 nitros. i really wanted to build a non scale.version of this plane for a while. either that or a variaeeze or other burt rutan model. i like the idea of a fully functional canard, but I'm afraid to actually impliment.it.

good luck chellie.

Canard? :confused:

fhhuber 04-18-2014 10:39 PM

VariEZe was/is a canard design

http://en.wikipedia.org/wiki/Rutan_VariEze

It has a fixed main canard surface with elevator on it.
Some Canard designs (including the Wright Flyer) have/had "flying stab" forward surfaces where the whole surface was moved to act as elevator. Some have fixed forward surfaces and depend on elevator/elevon on the main wing for pitch control.

Lots of ways to do it... you can mix and match flying stab + elevators on the forward surface and elevons if you want.

The flying stab is easier than you might expect.

xmech2k 04-19-2014 01:00 AM

Lol! Fh, I thought he was referring to the Cessna!

CHELLIE 04-19-2014 03:40 AM

Quote:

Originally Posted by xmech2k (Post 945743)
Sweet, Chellie! One of my favorites!

Mine Too :$

Quote:

Originally Posted by hayofstacks (Post 945790)
I think tower hobbies had a .40 sized model of one of these designed to run two .25 nitros. i really wanted to build a non scale.version of this plane for a while. either that or a variaeeze or other burt rutan model. i like the idea of a fully functional canard, but I'm afraid to actually impliment.it.

good luck chellie.

Thank You :$

CHELLIE 04-19-2014 03:48 AM

Ok, I got to thinking about this build, and Know What ???? I have a Dynam I can Fly Foam Plane Laying around here :ws: its been well used, so its ready to live another life :D
I am just going to use the front fuselage, and cut it a little behind where the wing mounts to the fuselage, That will work, then i am going to build a new wing out of 3mm depron, and make the rudders and stabilizer out of 1/8" balsa sheet, the wing will need to be moved back a little on the fuselage to give it the 337 look, and I will have to build up a little foam on the rear of the fuselage, Frankenstein Build :D

http://site.hobbypartz.com/pimages/6...-RTF-24G-5.jpg

http://img.planespotters.net/photo/2...Net_273873.jpg

fhhuber 04-19-2014 07:28 AM

Real trick is keeping the booms light but stiff. Its very easy to make a 336/337 tail-heavy.

I had the Nitroplanes big 337
(336 is fixed gear with a different air scoop at the wing TE.... going 336 makes going scale easier and allows easier wing mounting/removal)

Note your photo showing cooling flaps open for the rear engine... pretty much required on 336 and 337 to keep them open all the time.

CHELLIE 04-19-2014 11:04 AM

Quote:

Originally Posted by fhhuber (Post 945862)
Real trick is keeping the booms light but stiff. Its very easy to make a 336/337 tail-heavy.

I had the Nitroplanes big 337
(336 is fixed gear with a different air scoop at the wing TE.... going 336 makes going scale easier and allows easier wing mounting/removal)

Note your photo showing cooling flaps open for the rear engine... pretty much required on 336 and 337 to keep them open all the time.

Yea, I was thinking how to make them lite and yet be able to run a control wire through them, I think a ladder stick type build, with a 6mm CF tube on top will work, that should keep it lite, I Hope :D

CHELLIE 05-24-2014 12:13 PM

I Got The Motors Ordered, just waiting for them to get in, I am going to be Using my favorite 1800kv Micro Motor :ws: They are a little motor that think they are a big motor :D They are a little power house and only about $6.00 each, if you never used these motors, give them a try, i use them with a 7x6 apc prop and a 30 amp esc with a 3 cell lipo of about 1300 to 1500mah, they can be pushed, they have thick windings, i use them at about 20 amps and about 220 Watts and they love it :) just use a little epoxy to to help hold the wires at the motor and use a little epoxy on the motor mount so the motor does not turn in the mount and break the wires coming out of the motor, here are a few videos of this micro motor in action with a 7x6 apc prop on 3 cells, enjoy, Chellie

http://www.hobbyking.com/hobbyking/s...cro_Motor.html
http://www.hobbyking.com/hobbyking/s...talog/5430.jpg


http://www.wattflyer.com/forums/show...arry+lancaster

post # 98

http://www.Wattflyer.com/forums/atta...1&d=1360506965

quorneng 05-25-2014 12:45 PM

Hi Chellie
I shall be watching this with interest.
What will be its span?

Just for interest the booms on my 53" O-2 (337) are hollow built up in 3mm Depron and nothing else - no reinforcing at all!

CHELLIE 05-25-2014 07:10 PM

Quote:

Originally Posted by quorneng (Post 949007)
Hi Chellie
I shall be watching this with interest.
What will be its span?

Just for interest the booms on my 53" O-2 (337) are hollow built up in 3mm Depron and nothing else - no reinforcing at all!

Hi :ws: The span is going to be about 40" Wow thats amazing that your only using 3mm depron for the booms, take care, Chellie


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