Aircraft of the Republic

[miketr]

OK then...

Any info on Planebuilder

[Kaiser Kirk]

Hmm, turned into a quest. Planebuilder had the fellow's name, and I found a website to his compuserve page....but compuserve is out of business.
...
Well did some more digging... he's here :
http://www.rocketpunk-observatory.com/home.htm

Planebuilder isnt' there, but there is now a "Aircraft Specification Simulator" which allows you to download planebuilder.zip.

For biplanes, the 'maximum design airspeed' will be quite low, there will be no supercharger which will help ensure that.  Remember that maximum designed airspeed is indicated not total[.  Weapons Tab numbers are estimates, and are often a little high.

It takes a bit to get a hang of, and over at Wesworld we have some ideas of how to deal with inline engines and self-sealing tanks and ejection seats etc, but thats 1941 tech.

[Sachmle]

Um....my bad...I've had planebuilder 1.4 sitting in a folder on my desktop for a while...forgot about it. My bad.

[Walter]

It was hard to real a historical plane as most opted for multi-engined bombers

And what is wrong with that? :)

Breguet 14 is a single engined plane. ^_^

I'm more impressed with the 300hp engine on 1916 tech.

Like Logi said, same output as the Breguet which is just a 1916 plane (November 1916).

I do find it amusing that Logi apparently often looks at what Japan has. :D

The Renault 12Fe was in fact a 300hp engine. Of course it was a V-12 and quite heavy I'd presume.

Looking around, dryweight of the 12Fe was 365kg.

[Logi]

So revisiting the Romanian motorjet concept (Coanda). What is possible with 1916 tech?

Consider the following:

The plane shall be an all metal construction, have maneuverable wing flaps (as on the original Coanda). The plane shall be a sesquiplane and the wings are staggered and angled at 5 degrees back.

The motor of the motorjet shall be a 300hp piston engine.

The plane shall have no weapons (atm) and only one pilot.

What would be possible? Can1918 metallurgy keep up with the heat? What's the thrust of such an engine?

[Tanthalas]

I could sim it Logi, I have a version of the previous atempt functional but realy I doubt its feasable just yet.  maybe in the 1920s but I imagine it will still be a fuel hungry beast

[Logi]

I'm just very interested in the concept, if you could find the time to sim it, I would greatly appreciate it Tan ;)

[TexanCowboy]

Try Planebuilder, it helps. Just that I don't understand it, but, oh well.

[Desertfox]

Jet engines are brutally inefficient at slow speeds, especially afterburning motorjets. The plane might be useful if you want to barbecue something, but is pretty much worthless otherwise. It will be overweight, very short-legged, and very dangerous to operate. There is a reason why there are no jet powered planes that operate under 300 mph.

As for your question, metalurgy should be able to handle the temperatures encountered, but you might have to use steel which is very heavy. I can calculate the thrust of such an engine, but would need info on the prop size, operating speeds, and fuel flow.

[Tanthalas]

no real point DF, basicly everything you listed is what I found in working on the Romanian idea originaly.

[Logi]

There shall be no prop just as in the original Coanda.

The Caproni Campini N.1 also used a motorjet (abet in 1940) and achieved 233mph with a 750hp engine. There is one (although they were not produced en masse).

Operating speeds? As fast as possible.
Fuel flow? Er what? :-X I haven't calculated that.

[ctwaterman]

All Metal.... The First mostly Metal Aircraft at least for the Fuasalage comes in 1918.
300 Hp Engines are extremely rare in 1916 time frame.  They do however start appearing in Early 1917 and blossom hugely into 400,450 and even 500+ HP Engines by the end of 1918.

The problem with your design is you will as other pointed out is having to use steel and how heavy this makes the aircraft.   which will require more metal be used to reinforce the tradionaly light wings.

Im sure Tan might get it into the air but for how long.

[Sachmle]

All Metal.... The First mostly Metal Aircraft at least for the Fuasalage comes in 1918.

Not exactly

[Walter]

All Metal.... The First mostly Metal Aircraft at least for the Fuasalage comes in 1918.

Not exactly

Not exactly x2
:)
Yeah, I need to edit that picture in order to remove the German markings.
IIRC the Breguet 14 had also more metal than other planes of its time though not as extensive as the Junkers J.1.

[Walter]

http://en.wikipedia.org/wiki/Breguet_14

Apart from its widespread usage, it was noteworthy for becoming the first aircraft in mass production to use large amounts of metal rather than wood in its structure.

Structure it is.