WesWorld

Tis huge!

It's also similar to something Fokker wants to develop using Dornier as the hull designer.

Curious, you list 7 machine guns, I see 6, unless that ventral viewport doubles for a gun port.

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Originally posted by Kaiser Kirk
Tis huge!

It's also similar to something Fokker wants to develop using Dornier as the hull designer.

Curious, you list 7 machine guns, I see 6, unless that ventral viewport doubles for a gun port.

a/ Tis, but not out of historical.

b/ Closer to an American design, crossed with a Dornier

c/ You got it!

Oh I know the size is ok, went poking about flying boats to make sure what I was designing wasn't silly.

The thing is.. if this comes out in 1936, I may have to consider dropping Fokker's effort and buying Danish. I'll have to look at my design some evening after work (since my excel 4.0 doesn't do planebuilder) and see where the differences lie and how your ranges fit my desired range bands.

Strange, but well done!
I like the push/pull engines, a nice ahistorical touch that sets it apart. 2200 pounds of DC's would ruin and sub skipper's day.

Nothing a-historical about the push-pull engines, the Do-26 had them, along with a number of other Dornier designs that weren't built. Seems like some other designs had them as well, but I can't remember them off hand.

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Originally posted by Hrolf Hakonson
Nothing a-historical about the push-pull engines, the Do-26 had them, along with a number of other Dornier designs that weren't built. Seems like some other designs had them as well, but I can't remember them off hand.

I know there were a few designs that had them, but they were hardly the favored method. It's interesting to see it used on something mainstream.

Also, if you understand Planebuilder, could you help me out a bit? I'm wanting to play with a design, but can't really understand what I'm doing.

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Originally posted by Hrolf Hakonson
Nothing a-historical about the push-pull engines, the Do-26 had them, along with a number of other Dornier designs that weren't built. Seems like some other designs had them as well, but I can't remember them off hand.

Pretty sure there were a number of OTL Italian flying boats that had them, though mounted well above the wing in a nacelle.

Whoa ugly!

Not a bad plane, but you will have problems cooling the rear engines.

I'm a bit concerned about the pontoons. They're rather massive and draggy. I think smaller floats, but further out along the wing would look nicer, but thats just me. Maybe a bit more chine on the hull as well.

I'm not sure on the double tail either. The might be unexpected effects in having it in the slipstream of the props. Have you drawn a single-tail version?

Overall, it looks pretty good.

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Not a bad plane, but you will have problems cooling the rear engines.

Not with those massive radiators in the wings. Ground running on just the rear engines might be a problem as theres very little airflow going through the radiators, but this could be overcome.

Quoted

Originally posted by Hrolf Hakonson
Nothing a-historical about the push-pull engines, the Do-26 had them, along with a number of other Dornier designs that weren't built. Seems like some other designs had them as well, but I can't remember them off hand.

Rohrbach historically designed several in the late 20's, but none were built. This is WW's second of these to fly. The first was in WW 1932-ish.

Just a few design points....

The 4 engines would be used to get her airbourne, and ground taxi-ing would only be on the front two. Story line is that pilots of the Ro IX, discovered the rear engine thing on a flight back from St. Thomas when they lost the port forward engine, and actually made the rest of the flight on the rears only to ease the assymetric thrust effects.

Pontoons were decided on because it was felt that the wing was too high for a "normal" float support structure.
They also double as extra fuel tanks

Because of the tall fuselage, Dornier-style "water wings" make a fair amount of sense, though stabilizing floats would certainly work. I don't think they need to quite THAT prominent, though, based on the Do-214/-216 designs (which WW Germany is thinking about building).

http://www.flightglobal.com/PDFArchive/V…20-%200654.html

Supermarine Type 524. Its huge and still has the wing floats. For that matter, just look at the SaRo Princess.