Winter build project: Wolfgang Matt’s ATLAS

Has it only been weeks I've been without a plane, it feels like months! I think it will be good to get back flying again, and testing those retracts out, I'll bring some spares to the field just in case

Colin, that sounds like a very sensible solution to the nightmare of covering.

David, your snakes are in pride of place running down the centre of the fuselage.

I really am very grateful for generosity of the members here, the help and advice I've received, and the bits of piece I've been given and lent to help me build this plane has been wonderful. Thank you.

Lets just hope all things now fall into place, and go together as intended, and I'll be able to get it into the air soon.

4Pedalsfly wrote: Chris , well done looks good.
You will enjoy this story titled " The Bandage Covering Method " - quite a few years ago a guy was keen to take up the hobby & built a model from a kit. All went well till the covering stage
when he had great difficulty with the heat shrink film, his solution, cut it into strips & apply
mummy fashion. I maidened the model which flew really well .
Colin. A

That was 'me' Colin. And the model still exists in same 'bandage' covering under the current ownership of Big Dave.

JRI wrote:

4Pedalsfly wrote: Chris , well done looks good.
You will enjoy this story titled " The Bandage Covering Method " - quite a few years ago a guy was keen to take up the hobby & built a model from a kit. All went well till the covering stage
when he had great difficulty with the heat shrink film, his solution, cut it into strips & apply
mummy fashion. I maidened the model which flew really well .
Colin. A

That was 'me' Colin. And the model still exists in same 'bandage' covering under the current ownership of Big Dave.

John - I was very carefull not to give clue to "Bandage" man's identity, good of you
to put your hand up, amazed Citaborea is still flying, is the Irvine 40 still pulling it round ?
Colin. A

The hinges are glued, hopefully they will still move in the morning when the epoxy has had time to totally harden.

Looking ahead I plan to set up the servos and control linkages tomorrow. I cannot find any control throw details for the Atlas, so I thought I'd take a look at the recommended setup for the Curare as that's got to be in the same ball park area.

www.der-schweighofer.at/public/files/original/6656/66569.pdf

Alas it's all German to me

In the aileron column are the two different measurements for up and down, is this differential?

And it seems there is a heck of a lot more down elevator than up elevator (H = High and T = Low)

Anyway, how does this sound for the initial set up of that Atlas:

Ailerons:
High rates: 15º up and down
Low rates: 12º up and down

Elevator:
High rates: 16º up and down
Low rates: 12º up and down

Rudder: as much as I can set without fouling anything.

Chris001 wrote:
In the aileron column are the two different measurements for up and down, is this differential?

Yes it is, although that seems a lot if difference between the 2. As a ballpark starting point, set both up and down the same, then add 20% differential

Chris001 wrote: And it seems there is a heck of a lot more down elevator than up elevator (H = High and T = Low)

It's normal to have more down due to requiring some down when inverted in order to maintain level flight

Chris001 wrote:
Anyway, how does this sound for the initial set up of that Atlas:

Ailerons:
High rates: 15º up and down
Low rates: 12º up and down

Elevator:
High rates: 16º up and down
Low rates: 12º up and down

Rudder: as much as I can set without fouling anything.

Sounds fine

Thanks Jon,

I'll go with that then, and the difference between the up and down on the elevator makes sense now you've pointed it out!