Advanced designs

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Staff Sergeant
Here's a thread where folks can post info/pics on advanced aircraft whether in production, prototype or drawing board form:

HE 343
Back in the bomber focus after the He 280's loss to the Me 262, Heinkel came up with a quite conventional looking four-engine jet design in March 1944. The 343 was a quite realistic design stemming from a 1942-43 project P.1068. It was advanced as a jet bomber should be but was not over done. There were swept-wing variants planned but the basic plane was on par with the Arado 234, which saw service with the Luftwaffe. The He 343 was a larger Ar 234, if you will.

On the 343A-1 the quartet of HeS 11As of 2,866 lbs. thrust each were to give the plane a top speed of 565 MPH and a 1,000-mile range. 4,410 lbs. of bombs were to stow internally with an additional 2,206 under the straight, 59.0-foot wings. Guided munitions like Fritz Xs could be launched Length was 44.2 feet and all up the plane would weigh 43,108 lbs. A 48,500-foot ceiling was estimated while a pair of 20 mm MG 151s rested in the lower rear fuselage with 200 rounds each.

A nearly finished prototype was destroyed near the end of 1944. In early 1945 a prototype was in the final stages of pre-flight get-ready when a fire at the factory destroyed it and a fifty percent complete recon version. Segments for an attack variant with jigs, tooling and drawings were lost in the fire as well.

A 343A-2 designated the reconnaissance craft, which had extra fuel tanks in place of bombs. The He 343A-3 was the first Zerstörer (Destroyer) version. The standard armament was to be four forward firing MK 103 30 mm cannon with 400 RPG, which were mounted in the bomb bay. Alternately two forward firing MK 103 30 mm cannon with 100 RPG and two forward firing MG 151 20 mm cannon with 200 RPG. Cannons up to 50 mm could be used, though all the forward firing guns had to be located on the starboard side of the fuselage nose, due to the nose wheel which retracted to the rear and was on the port side. The He 343B-1 differed in that it mounted a remote controlled pair of MG 151s at the rear instead of fixed weapons.

Nothing about this straightforward bomber would have deterred it from rapid development and deployment.
Here was a good-looking prototype at the end of the war-

Beyond the excellent G8M1 "Rita" 4-engine bomber tested in the post-war US, the G7M1 Taizan Type 16 project was drawn up for a high speed bomber able to carry a lighter payload shorter distances. A crew of five rode in a comfortable 65.6-foot fuselage. Four Mitsubishi Ha.42 Model 31 18-cylinder radials of 2,400 HP each turned on the 82-foot wings. All up the compact bomber weighed 35,200 lbs.

Like the Rita this ship would be quite fast at 345 MPH but with a shorter range of 1,726 miles.

Defensive armament proposed was that of two 20 mm cannon and six 13 mm machine guns. Bomb load variables could be a 1,760-lb. bomb or torpedo, two 1,100-lb. bombs or six 550-lb bombs.

This project was cancelled due to shortages and long lead time to completion.
if they hadnt painted it in US paint, it wouldnt look like a B-25/26 with 4 engines
Here's a weird project that got dreamed up

So what ever happened to the builders of the airships, Zeppelin? They were still around by WW II building sub-assemblies for larger aircraft and other bits and pieces. With the colossal numbers of heavy bombers converging regularly on Germany, various methods to stop them were dreamed up. Kamikaze attacks had been generally ruled out by the high command, though proponents like aviatrix Hanna Reitsch argued her position till the end of the war.

Zeppelin suggested an alternative with a small solid fuel rocket powered craft capable of ramming one or two heavy bombers and surviving. It was feasible to build a plane so strongly that it could cut off another B-17's tail after firing its salvo of fourteen R4M 55 mm rockets at a formation. A steel fuselage and wings with three tubular spars would do the job. The Rammer/Sideswiper idea was born.

It was 16.1 feet long and the design had a 16.4-foot non-swept wing constructed so solidly that it could perform mid-air slice of a bomber's tail and survive. Again the concept was to tow the craft aloft and wait for the bomber stream to appear. The pilot, flying from his prone position, would then light his Schmidding 533 rocket of 2,205 lbs. thrust and close on the bombers at 600 MPH at the peak speed upon spending his solid fuel. Burn time of this rocket I unknown but typically would be about 45-60 seconds.

The nine-pound R4M rockets with their 1.1-pound warheads were the same as used on Me 262s, which carried twenty-four. Maximum range of the R4M was 4,900 feet but effective range was 1,800 feet. The Rammer's tiny size would be hard to hit by gunners it was reasoned.

But protection for the pilot beyond heavy armor was a windscreen with 80 mm glass plate and side panels with 40 mm glass. The nose and leading wing edges were to be fabricated of 20-30 mm cannon proof hardened steel. The plane would glide to land on its retractable skid anywhere it could for later retrieval.

The Air Ministry never had time to decide on which manufacturer's design to choose. No prototypes or mock-ups are known to have been constructed. Even if they had it is very doubtful that it would have done much.
i think i'd prefer the Zepplin rammer.........

and CC if i'm not mistaken that picture was taken at the Wright Field's 1945 air fair and that's the Ju-290 behind it?

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