Heinkel He 111

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Pips
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Heinkel He 111

Postby Pips » 13 Apr 2017 03:32

Anyone know the reason why Heinkel changed the nose profile (from stepped cockpit to glazed nose) with the advent of the P model?

Yes it certainly looked better, but did it result in a superior piloting position/ease of flying?

The extensive glazing resulted in very poor vision when either bright sunshine or rainstorms were encountered. In the case of bright sunshine glare throwback was the problem (caused by the curvature); and the pilot's visibility in rainstorms was seriously affected by a mirroring effect caused by water on the glass.

A well known example of the latter, that was the cause of the Heinkel He 111 crash carrying Werner Mölders back from Russia to attend Ernst Udet's funeral.

Denniss
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Re: Heinkel He 111

Postby Denniss » 13 Apr 2017 08:24

Better crew comfort/working conditions, better vision to all sides, probably better aerodynamics

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kfbr392
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Re: Heinkel He 111

Postby kfbr392 » 13 Apr 2017 10:34

The RLM basically ordered all manufacturers to concentrate the entire crew in a non-stepped "Kampfkopf" ("combat tip") at the front of the bomber, more or less within eyesight.
This was to facilitate cooperation and coordination.
It was part of RLM design philosophy for bombers ca. 1937-1941. Like, you know, dive bombing and stuff.
A dire consequence of this is the lack of a tail gunner in almost all designs in that time period.
Exceptions: He 177. Ju 290.

The He 111 was already a civilian plane when it was adapted as a bomber, and the Kampfkopf concept could not fully be realized since some crew-served defensive armament had to be located aft of the bomb bay. But it was probably thought that a new nose section (non-stepped as a proper Kampfkopf) would facilitate the movements and the tasks of the nose gunner/ bomb aimer/ navigational assistant sharing the nose of the aircraft with the pilot.

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Pips
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Re: Heinkel He 111

Postby Pips » 17 Apr 2017 09:07

Thanks for the replies guys, appreciate it. :)

uhu
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Re: Heinkel He 111

Postby uhu » 23 Apr 2017 00:50

Also made for better crew morale, and if wounded he could receive aid easily.

Paul Lakowski
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Re: Heinkel He 111

Postby Paul Lakowski » 23 Apr 2017 01:28

The speed before this modification was 242mph, the aerodynamics increase were critical.


). The development team for the Jumo 211 A-1 engines managed to increase engine power to 930 hp (690 kW), subsequently the He 111 E-1s bomb load capacity increased to 2,000 kg (4,410 lb) and a top speed of 242 mph (390 km/h).[27]



The He 111P incorporated the updated Daimler-Benz DB 601A-1 liquid-cooled engine and featured a newly designed nose section, including an asymmetric mounting for an MG 15 machine gun that replaced the 'stepped' cockpit with a roomier and more aerodynamic glazed stepless cockpit over the entire front of the aircraft. This smooth glazed nose was first tested on the He 111 V8 in January 1938. These improvements allowed the aircraft to reach 475 km/h (295 mph) at 5,000 m (16,400 ft) and a cruise speed of 370 km/h (230 mph), although a full bomb load reduced this figure to 300 km/h (190 mph).[26


https://en.wikipedia.org/wiki/Heinkel_He_111


So despite a power increase of 950hp per engine to 1100hp , 5% increase in speed was possible. Historical increase was >20% in speed and became the hallmark of all bombers.

That suggests the glazed cockpit increased speed by 16%???


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