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In the post-war years, the U.S. Coast Guard wished to explore new concepts for sea rescue. Two studies emerged:
  • A glider-borne lifeboat which may be launched from water or land, and towed by powered aircraft to survivors of overseas airline crashed and marine casualties;
  • A twin-rotor glider-helicopter lifeboat that could be launched almost vertically from land or water, being towed behind the search plane, released at the scene of disaster, landed vertically, rotors jettisoned or folded back and maneuvered as a conventional motorboat while picking up survivors.

According to the article, the experimental work on these projects (the first of which was done jointly with the Stevens Institute of Technology) had to be suspended "due to overall reduction in appropriations."
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Thank you for your support but those articles are not new to me.

I realized after doing that extensive search that you were yourself from Sweden, so I didn't really have too many hopes... but anyway, as I said, even if you knew these, they belong in this topic for all those who don't.  ;)
Ait.  ;)
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Aerospace / Re: Tempest - UK Future fighter programme
« Last post by Hood on Today at 09:30:46 am »
BAE Systems has big presence in the US so its not beyond the realms of possibility.

From my perspective at present BAE Systems only really has a market in the Middle East, how long that will hold in the face of growing US competition is open to question. SAAB have done very well with the Gripen with second and third-tier nations with generous financing and offsets. SAAB's ideas seem to still be in the cheaper single-engine category that might suit nations with small pockets who can't afford to build their own TF-X or KF-X F-35 look-alikes, hence their insistence on including Gripen E technology. The Tempest is a rather more larger and expensive beast (the Swedes have never operated a twin-jet fighter) more suited to nations with deep pockets and technically competent ground crews to keep them running). Will those competing commercial interests ultimately prevent a BAE/SAAB deal and is each firm's key market actually sustainable for a sixth generation fighter?
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Idea or attempt is good, however balance between cost and effectiveness should be carefully considered.

Sealing for submersible vehicle is not cheap task for big ship (radar, external guns, antenna, hanger for helo)
yes, huge issues and most likely only semi-submers even makes sense and they would big big cost for sure.  The alternative though is maintain a staid maritime manufacturing culture which loses.
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Thank you for your support but those articles are not new to me.

I realized after doing that extensive search that you were yourself from Sweden, so I didn't really have too many hopes... but anyway, as I said, even if you knew these, they belong in this topic for all those who don't.  ;)
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Aerospace / Re: Tempest - UK Future fighter programme
« Last post by Flyaway on Today at 08:25:16 am »
Trying not to be cynical here, but I wonder if the Americans are trying to nix a potential competitor by offering BAE a way into the PCA programme?
I don't necessarily think that's a bad thing, a joint US-UK-Japanese PCA programme could provide some viable returns.

I donít think that will happen as I thought the PCA like the F-22 would not be up for export due to the technology involved.

Anyway Iíd rather partner on this project with nations like Japan than the US who probably have rather different requirements to us.
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Thank you for your support but those articles are not new to me. Also they only show the armament they got as staff planes which was 2 front mounted 8 mm mgs and one 8 mm for the gunner. Also the polish blueprint u found shows a modification that was done to the surviving b 6 and all swedish j 9s (swedish p-35's) in 1944. It was a lengthened air intake.

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Aerospace / Re: Tempest - UK Future fighter programme
« Last post by Flyaway on Today at 08:09:46 am »
Deleted. Somehow double posted.
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Propulsion / Czechoslovakian Praga CRK engine
« Last post by Hardrada55 on Today at 07:09:10 am »
Anyone have information about displacement and weight of pre-war Praga engines of Czechoslovakia?  I have read that the Czechs had developed a 1000hp engine in 1938.  I know the Praga CRK was supercharged, 641hp (478kw) at 2600rpm at 4000m. 
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