To design up and build an Avro Lancaster

[road king 97]

Made from fiddlers green cardboard or paper model. joe

Minium DC-3 for kyosho Minium equipment

Click on it for the video

[dahawk]

Joe,

Must have been a slow day at the hangar- LOL I want that job !

Nice job chasing the little gooney around the Shorts !

-Hawk

[road king 97]

Originally Posted by dahawk

Joe,

Must have been a slow day at the hangar- LOL I want that job !

Nice job chasing the little gooney around the Shorts !

-Hawk

I liked the other big plane in the hanger.lol joe

[Flite-Metal]

Originally Posted by pattern14

Don't want to hijack the thread either, but while Nigel is is Singapore, I'm REALLY curious about the
EDF Horten. There are a number of them....Which one?

I went looking in archives and can find the explicit He design Sam found. We have two designs Gary Heathcott's and the 80" we
have discussed enlarging to about 116".

I am recovering everything after a desktop and notebook went south in a matter of days of each other. I was fortunate to find
an exact mate to my Toshiba P-25 17" notebook. I am finishing up reloading everything today. With all the design software one
forgets where they put discs.

Sam had just sent me the He .pdf file and I saved it on an external drive as I do everything... I went looking but must have
hidden it deep. I will have him send it to me again.

Wattflyer and RCGroups are all atwitter with the Thomas' He-229 he is taking orders for fiber glass parts...around $1.4k for glass.
Its an XPS Dynamax EDF or Kero burner.

[Flite-Metal]

As long as you use a highly detailed (translates into boo-koo parts count) card stock model created at high enough density
(dpi) you can crank that puppy up to 20' and larger w/s with an automatic parts template...

I have paid as little as "0" for free online downloads up to $40 usd for downloads. Everything from a B-47 to a B-2.

Airfoils are the typical concern so you need to have an airfoil generator so you can loft the 1:1 foils and compare to the
card stock model's. Because most card stock models this size are designed to fly you are typically going to find eveyrthing
AOK...but check..



Instead of using Gary Heathcott's fiber glass skins, you utilize foam core board and laminate with enlarged images from the
card stock model. Internally, its constructed with either foam core formers, traditional materials, or a hot wired center of
the Ho-229 with two wing outside panels.

[solentlife]

Hu Hum ... !! Lancaster please ...

Been thinking about my Lanc ... with the carraige of 4 motors and the stresses ... I reckon I will add balsa to the fuselage .... having had my green foam sheet break on the Me109 ... It's more brittle than Depron ..

Been tthinking about various changes while away ...

Can't wait to get back ...

Nigel

[road king 97]

Originally Posted by solentlife

Hu Hum ... !! Lancaster please ...

Been thinking about my Lanc ... with the carraige of 4 motors and the stresses ... I reckon I will add balsa to the fuselage .... having had my green foam sheet break on the Me109 ... It's more brittle than Depron ..

Been tthinking about various changes while away ...

Can't wait to get back ...

Nigel

What do they call your green foam and where do you buy it there from nigel ? joe

[solentlife]

Originally Posted by road king 97

What do they call your green foam and where do you buy it there from nigel ? joe

Its made to lay on floors under laminate / Parquee .... 5.5mm and 3mm.

It's closed cell format ... the reason it splits easier - it has grooves every 6mm apart running entire length of sheet. So when cutting for formers etc. - you need to make sure grooves are in correct direction.

But cost is a fraction of Depron ... and available at local DIY store in packs of 10 sheets ...





To strengthen such as a wing or similar - I usually add a sheet of 3mm Depron to the grooved side, which also enables me to gain an aerofoil curve by inserting a foam spar between the two.

Here you can see the grooves and the aerofoil shape made by inserted spar ... (my SE5).




An application that I have found my cheap foam to be absolutely gold for - doubling / repairing wing ribs that get split / shattered in a conventional build. The foam is extremely light and easily cut ... rib sections can be inserted very easily ... along with the original balsa pieces .. creating very strong repair. Here my gasoline powered Biplane is receiving such :









....... foam a material I had no faith in until I flew todays foam models ! Being a balsa basher of the 70's !

Nigel

[road king 97]

The reaason i was asking is i am sighned up on your UK forums and they are looking for cheaper foam to build with. They dont have dow blue fanfold or dollar tree stores . joe

[solentlife]

Originally Posted by road king 97

The reaason i was asking is i am sighned up on your UK forums and they are looking for cheaper foam to build with. They dont have dow blue fanfold or dollar tree stores . joe

I know ... I have same problem in Latvia ....

I think FanFold is available - just needs to be found.

The foam sheet I found was purely by accident. My house is being rebuilt and I was in store with the builder ... found it behind other gear ...
Depron is not cheap in Latvia - so was glad to find alternative. Depron is only via an online Hobby Shop in the small quantities we need. The factory only sells large volume to trade customers.

Nigel

[Flite-Metal]

You need to be looking for XPS Extruded Polystyrene. That is the technical name for high density non-beaded foam.
Do not ask for Styrofoam as that is a commercial name exclusive to Dow Chemical Company polystyrene. This is an
"extruded" foam with a "hard" and high compression strength composition which must be laminated with thin obeeche
or balsa then glassed with .6 oz to the sqyd weight equal thread diameter fiber glass cloth on its bias for greatest T/C
value.

The proper way to build with this material is to utilize it for your exterior. When you utilize an internal truss structure to
erect all your structure the exterior facade provides the greatest degree of accuracy possible because the exterior is
only having to support itself, not the mechanical strength.

Bayer will be one of the manufacturers in Europe. This is a construction trade raw material consumed architectually as
a replacement for masony and large exterior shapes.

The Dow Chemical Company High Load XPS is available in 40/60/100 pound to the square inch densities...aka resistant
to bending because when laminated per above...it resists compression because of the equal tension on opposite side of
any shape created from the material.

Bayer has this in its own "brand". You MUST source it by its technical attributes found on all foam MSD sheets. XPS is
Extruded Polystyrene Foam in various per sq. inch densities.

This is how our two 1/9th scale Boeing B-47 Stratojets are designed. Hot wired and CNC milled components form 90%
of the airframe.

[solentlife]

All now delayed as I've just got home to restart build ... just got call - travel back to Singapore !!

Nigel

[dahawk]

Originally Posted by solentlife

All now delayed as I've just got home to restart build ... just got call - travel back to Singapore !!

Nigel

Wow ! With all the Airline miles you must accrue, you could cash in for some really nice ARF's ! LOL

[solentlife]

Lancs taken a bit of a backseat at moment .. with all the work and all the model repairs !!

I will get back to her ...

Nigel