For the buff types

RE: For the buff types

Prototypes for Republic XF-12 used a system to route exhaust and supercharger and accessory waste gases to an oval “jet pipe” exhaust installation on four R-4360-31s, which gained 250-300hp per engine. Rather than having individual cowl flaps, the entire nacelle was equipped with a sliding ring arrangement and internal variable-speed fan for cooling air on the cylinder heads.
The Rainbow was purpose-built as a Strategic Reconnaissance aircraft. USAAF/USAF decided to stay with the F-13 — modified B-29s, redesignated RB-29s after 1948. XF-12s were significantly faster in cruise than the F-13/RB-29s (220mph vs 380mph) with nearly 4000-mile range and a service ceiling in excess of 40,000′, and had an on-board photo processing lab. The two prototypes were redesignated XR-12 by 1948. One is at the bottom of the Gulf of Mexico, the other ended as a target at Aberdeen proving grounds in the late ’40s or early ’50s.
Republic proposed a 46-place passenger version with 7 crew, 400mph over 3500 miles, but there were not enough orders to cover development costs. I think Rainbows still holds the unofficial record for four-engine piston speed at around 460mph. The design goal was sometimes referred to as “flying on all fours” — 4 engines, 400mph cruise, 4000 miles at 40,000′.
Attachments:

RE: For the buff types

The third piccy shows a Republic (F-12?)Rainbow recce aircraft (yes,recce). The idea behind the design was to create an aircraft that could fly from the mainland USA to Japan and back.It was a very streamlined design and could fly at over 400mph!
The airacraft’s system were extremely complex,which turned out to be it’s undoing.The first prorotype crashed killing all on board due to systems problems,and the second aircraft was grounded when the programme was dropped,the need to fly from mainland USA being nullified by the Americans conquering islands much closer to Japan,bringing it within reach of conventional aircraft.

RE: For the buff types

Wasn’t that from the Martin company, the same company that built the B-26!

Per Ardua Ad Astra!

RE: For the buff types

convair xy-somthing??

RE: For the buff types

I’m stumped!!! Can I have a clue??

RE: For the buff types

Here is one that might stump some of you…
Attachments:

RE: For the buff types

That’s a very nice YB-49 you’ve added there!! The first stealth aircraft??? Well… some radar’s did have a hard time picking it up!!

RE: For the buff types

Nice!! The B-36 sure was a big aircraft!!!!

RE: For the buff types

[updated:LAST EDITED ON 23-01-02 AT 06:35 PM (GMT)]That’s a B-36 Peacemaker, nice
Like to smoke the bigger cigar?

What about this one!

Per Ardua Ad Astra!
Attachments: