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PostPosted: Mon Oct 05, 2020 5:52 pm 
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All, does anyone know about this project?

TIA
Dave

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PostPosted: Tue Oct 06, 2020 5:30 am 
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is it the one that is Allison powered?...Tim Blairs one?


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PostPosted: Tue Oct 06, 2020 8:06 am 
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oz rb fan wrote:
is it the one that is Allison powered?...Tim Blairs one?



If it is the Flugwerk that was owned by Tom Blair, it was sold to Jerry Yagen and AFIK it is still sitting in the hangar in Virginia. It was never certified for flight. Yagen is having a Jumo 213 built for it, but I am not aware of a schedule for when any work will start. I have also read that another Flugwerk owner might be going the Allison route for a Dora.
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PostPosted: Tue Oct 06, 2020 5:16 pm 
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I had a daydream recently of buying one of those “ ground bound” Doras , of which none have ever flown. I scrapped the Allison idea and the $2 million dollar Jumo original engine idea. I took a Griffin 57/58 with contra rotating props and adapted to the Dora. Sure, it’s even more powerful and sinister than even Adolph could imagine but it would look and fly great.
To heck with trying to figure out a gear reduction and prop extension, etc for using an Allison, or trying to maintain an ultra rare Jumo engine in an airworthy state. Just stick a Griffon on it!


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PostPosted: Tue Oct 06, 2020 5:42 pm 
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There was one at Stallion51 in Fl no?

Where is it now. As far as I can remember there is even was a video of it running the engine at one point.

Cheers!


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PostPosted: Tue Oct 06, 2020 8:33 pm 
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Michel Lemieux wrote:
There was one at Stallion51 in Fl no? Where is it now. As far as I can remember there is even was a video of it running the engine at one point.


It's the same one as in DoraNineFan's photo, owned by Jerry Yagen/Military Aviation Museum for the past several years. When it was in Florida, it was during the time it was owned by Tom Blair and housed at the Kissimmee Airport. It has never flown.


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PostPosted: Tue Oct 06, 2020 9:15 pm 
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About 17 years ago I was at Stallion 51 and they were talking about that airplane. There was a Dora engine firewall forward with all The accessories, prop, cowlings , etc available. To fit it to that airplane was going to cost $1.5 million USD.
That’s a lot of money for an airplane that will still only be a replica. That’s why I suggested the Griffon. It’s heavy and long and would have plenty of horsepower and growl. It would create a lot of excitement and be a better financial investment than the Jumo route.


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PostPosted: Tue Oct 06, 2020 10:04 pm 
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marine air wrote:
About 17 years ago I was at Stallion 51 and they were talking about that airplane. There was a Dora engine firewall forward with all The accessories, prop, cowlings , etc available. To fit it to that airplane was going to cost $1.5 million USD.
That’s a lot of money for an airplane that will still only be a replica. That’s why I suggested the Griffon. It’s heavy and long and would have plenty of horsepower and growl. It would create a lot of excitement and be a better financial investment than the Jumo route.


I still find it curious that nobody has dropped a DB-603 into one of these. I think Tank designed the engine mounts to take the DB or the Jumo with just cowling changes. There are probably a handful 603s around that would be suitable and maybe less expensive than a Jumo. Yes to many serious collectors it will always just be a replica. Also it would need more work to equal a wartime example with correct hard points and other structure.

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PostPosted: Wed Oct 07, 2020 3:37 am 
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Has anyone scavenged french scrapyards for an Arsenal 12H, a post war development of the Jumo 213A?

From Wikipedia:

Quote:
Post-war development of the Junkers Jumo 213 which had been in production for the Germans at the Arsenal de l'Aéronautique factories.


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PostPosted: Wed Oct 07, 2020 6:13 am 
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Christer wrote:
Has anyone scavenged french scrapyards for an Arsenal 12H, a post war development of the Jumo 213A?


I don't think many were made and I have read that the Nord seaplanes operated until 1966 which is impressive for those Jumo engines. Arsenal did make some changes/improvements to the engine although I have not read any literature about it. No Nord 1401 seaplane survives today but 21 were produced and you can factor in engine spares.

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Last edited by DoraNineFan on Thu Oct 08, 2020 5:54 am, edited 1 time in total.

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PostPosted: Thu Oct 08, 2020 2:57 am 
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Arsenal did make some changes/improvements to the engine although I have not read any literature about it.

I can't locate my source right now but if I recall correctly, the main change from the original 213-A was in the fuel injection system. Internally not many changes but possibly better metallurgy resulting in higher quality castings and so on.

Is the spares situaion any better for the original production engines?

Anyhow, 21 aircraft built with two engines on each and a few spares, production may have been ~50 units and you never know ... :shock: ... what you'd find diverting from the wineries!


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PostPosted: Tue Oct 13, 2020 4:08 am 
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Quote:
Is the spares situaion any better for the original production engines?

My interpretation of the silence is "no comments = no spares" ... :shock: ... !


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