thinking of a new project

Wit tee dee .020 i have once use a eflight ultra micro Reciver brick from one of m'y beast wit as3x wit two servo on for ruder elev plus two servo for eleron very light if Not using throttle on engine its Perfect and its batry last very long without use power for litle brushless engine m'y wit a very big fuel tank fly up To 19minutes somtime 20 wit fuel fuly filed weight was a bit To mutch like 260. G with fuel tink fuel tank was like 1oz litle bit more cant remember one of m'y best plane its now destroyed m'y mom step on its tail by accident its me wy i left it on the flor this is parts of the plane
It was a very ugly plane build but flight Good very capable plane back then

Hi friends.
the model I am referring to is this ..
outerzone.co.uk/plan_details.asp?ID=7594
The idea is to build it in balsa wood as light as possible.
the pee wee is going to go with an external fuel tank.
I keep you posted on the progress of the project.

Hi Nico !, my advice is that if you want a acrobatic plane then the measurements for .020 are:
Wingspan: 630 mm
Fuselaje: 440 mm

If you want a sport relaxed flight for .020 and with that model aircraft that you present, then:
Wingspan: 730/750 mm
Fuselaje: 540/560 mm
Here you can see my AMA PT, powered by a Cox Tee Dee .020 r / c (with a 630 mm wingspan and 440 mm fuselaje)

Hello Mauricio , Is that plane only have throttle / elevator / ailerons for control ? that plane looks like a lot of fun ! , flies extremely well .

getback wrote:Hello Mauricio , Is that plane only have throttle / elevator / ailerons for control ? that plane looks like a lot of fun ! , flies extremely well .

Hi Eric, because this model is the AMA PT, originally for a .010 engine, because I made two, one orange and the other blue.
Orange has .010 and blue has .020.
The orange has two channels (ailerons and elevator) the blue has three channels, ailerons, engine and elevator)
you can see the construction here:

nico010 wrote:Hi friends.
the model I am referring to is this ..
outerzone.co.uk/plan_details.asp?ID=7594

That's the Playmate, not Plymate Apparently there are so many model designs out there that you can make a random typo and still end up with an existing model name  

just ..... almost as if someone had been reading the forum posts !!!!
today they put this on the web in the outerzone:
https://outerzone.co.uk/plan_details.asp?ID=12971

Thats Wild , you ask and you shall receive LOL Is this what ur going with then ?

Hi nico, That 20" span Jr. version looks to be perfect for the PeeWee .020 given today's feather-weight nano RC systems. You mentioned an external fuel tank for the PeeWee. One of our Cox parts suppliers and CEF member "Cox International" stocks a .020 backplate for use with an external fuel delivery. It's a modern 3D-printed item that comes with everything you need for converting the back-end. In stk. (7 avail.) as of this post.

https://coxengines.ca/cox-020/cox-020-pee-wee-backplate-assembly.html




L.M. Cox also made a .020 product-engine (reed-valve induction) having a plastic backplate/carb. (NVA, venturi/reed-holder) allowing an external fuel-delivery. They were much less common than the .049 version; known as the "horseshoe backplate".. but the .020 version was similar.. just smaller. It was featured in Cox's PT20 Army Flight Trainer.

Some photos..





Nice looking little model.. isn't it?   There could be other Cox RTF .020 powered models that had external fuel-cells.. but I don't have any further info. There "is" the Cox "Sky-Copter".. (a Free-Flight model) which also came with a .020 reed-valve engine equipped with a special/unique back-end/fuel-system.




You could possibly modify if you could find one. They were a popular model.

Wow!...never seen one of those Pt-20's.

hello everyone ... sorry for the delay.
Regarding the external tank ... unfortunately where I live it is extremely difficult to access those accessories like the one shown by roddie ..
I have a 020 tank that has a hole through which to pass a fuel line.
last weekend I adjusted the plans to the dimensions suggested by mauricio. Present the engine on the plane and it seems to fit like a glove.
I leave you a photo that I take of it.
I will keep you posted on the progress.