Heinkel He 70 Blitz Ideas and Inspiration

[GTX_Admin]

A thread for your Heinkel He 70 Blitz Ideas and Inspiration.

[GTX_Admin]

How about a airliner version but with a later, more powerful engine such as a Db605 or 603 or Jumo 213 instead of the BMW VI 7,3?

[jcf]

BMW VI: 510 kg (1,124 lb)

DB 603: 920 kg (2,030 lb)

DB 605: 756 kg (1,667 lb)

Jumo 213: 1040 kg (2,072 lb)

DB 601: 600 kg (1,323 lb). Tested on He 270 V1, a Heinkel proposal to overhaul and re-engine He 70Fs.

Also bear in mind that He 70 series had a wooden wing, spars and covering.

[jcf]

Rolls-Royce purchased one He 70G (G-ADZF) that was used as an engine development testbed,
it's most well known for its use in development of the Kestrel. It did not have the offset canopy
of the He 70A and it had a longer fuselage.

[GTX_Admin]

Adding in the rough powers to below and power to weight ratios (for engines):

BMW VI: 510 kg (1,124 lb)  740hp thus 1.45 hp/kg

DB 603: 920 kg (2,030 lb) 1,726 hp thus 1.87 hp/kg

DB 605: 756 kg (1,667 lb) 1,455 hp thus 1.92 hp/kg

Jumo 213: 1040 kg (2,072 lb) 2,022 hp thus 1.94 hp/kg

DB 601: 600 kg (1,323 lb). Tested on He 270 V1, a Heinkel proposal to overhaul and re-engine He 70Fs.  1,158.9 hp thus 1.93 hp/kg

Another idea derived from the Kestral mention would be a post war Spanish version re-engined (ala HA-1112 and CASA 2.111) version using a 1,600 hp Rolls-Royce Merlin 500.  This would have a power to weight ratio for the engine of roughly 2.15hp/kg.  It would also remain a degree of commonality for support with the other tow platforms.

[dogsbody]

What about an updated He 70K fitted with a BMW 801?



Chris

[GTX_Admin]

Certainly possible though realistically I feel that most 801s would be going to other applications.  BTW comparing the actual 1,000 hp WM-K-14 radial engine to the BMW 801 we get the following:

• WM-K-14:  1000hp at weight of 503 kg thus 1.99 hp/kg
• BMW801C:  1,539 hp at weight of 1,012 kg thus 1.52 hp/kg