In January 1944, Heinkel was persuaded by Oberstleutnant Knemeyer to begin
work on a four-engined jet bomber, that could be ready in the quickest
possible time frame. Although Heinkel had been working on a similar project
(P.1068), it was decided to take a proven design
(Arado Ar 234) and enlarge the dimensions. The He 343 (this designation
was submitted to the RLM on March 14, 1944) was to have a 1.55:1
larger wing than the Ar 234, and the linear dimensions were to be increased
by 1.25:1. The He 343 was also know unofficially as the Strabo 16
(Strabo was an abbreviation for Strahlbomber (Jet Bomber),
and the takeoff weight was to be 16 tons), before the 343 number was issued.
The enlarged fuselage had space for an internal bomb bay and for the newly designed main gear, which were double-braked. The wings were mounted mid-fuselage and were unswept. Four jet engines were to be mounted singly beneath the wings. The flexibility of the He 343 design really came into play here, as virtually any turbojet could be used. At first, the Jumo 004B was to be used, but it was hoped that the Jumo 004C would be ready by the time the He 343 prototype was finished. Also, the BMW 003 or the He S 011 jet engines could be fitted. On the planned production aircraft, the engines needed to be moved forwards a bit to clear the planned single, trailing edge flap. The nose and cockpit was newly designed, and a crew of two was to sit in the pressurized cockpit. The nose gear was also completely new, and was offset 100 mm (4 inches) to the port side from the centerline of the aircraft.
There were four main versions of the He 343 planned, these were:
*Some sources state that a prototype He 343 was completed, but was either destroyed in a bombing raid or was scrapped before the first test flight.
View Heinkel He 343 model photos
View Josha Hildwine's He 343 Luft Art images
|Max. Speed||Rate of Climb||Ceiling||Max. Range||Takeoff Run||Landing Speed|
|Airmodel AM0107||1/72||Vacuform & Resin||Includes single and twin tail parts|
|Planet #042||1/72||Resin & Decals|
Heinkel He 343A-2 Reconnaissance
Heinkel He 343B-1 Zerstörer
Weapon arrangement of 4 MK 103 in the
fuselage for use as a Zerstörer (Destroyer)
|V1 Work Number 850061
Basic prototype without bomb dropping equipment. Design documents
up to April 15, 1944 are supplied.
|V2 Work Number 850062
Basic airframe for flight and engine testing. Will be reconstructed for diving tests
after the first flights. Constructed according to the plans delivered on the 19th of
April. The delivered catapult assemblies will be installed later.Two catapults units
will be built.
|V3 Work Number 850063
Version supplied for weapons, radio and navigation testing. An example with
the new Destroyer cockpit featuring armoured glass is provided to contrast
against retrofitting of double glazing. Simplified undercarriage with a reduced
track width. Design documents are supplied up to June 30, 1944. Documents are
supplied that relate to armouring and double glazing up to July 30, 1944.
|V4 Work Number 850064
Version for released weapons test, including the Fritz-X radio controlled bomb.
Similar to the V3, except the bomber conversion is to be added, along with a
third seat. Design documents covering the period up to 15th August are supplied.
Six bomber conversion kits have been constructed to date.
|V5 Work Number 850065
Version for high altitude flight testing. All rivets to be flush riveted for
range extension testing.
|V6 Work Number 850066
Version for material substitution. Sample supplied as per destroyer version,
with wood surfaces, steel cross beams and plastic control units.
|V7 Work Number 850067
All versions to be similar to V3 example.