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  Topic: Supercharger characteristics of DB 600 series engines
cdouglas

Replies: 11
Views: 10355

PostForum: DB, Junkers, Other German Engines   Posted: Sat Jan 14, 2017 06:15   Subject: power curve shape
Hi,
The different graphs are due to the method of driving the supercharger.

The DB600 had a gear driven supercharger like the Merlin. Hence a straight line up, then a falling off.

The later eng ...
  Topic: Early WW2 engines with two stage superchargers - DB 601C/D
cdouglas

Replies: 6
Views: 7410

PostForum: DB, Junkers, Other German Engines   Posted: Sat Jan 14, 2017 05:54   Subject: Kollmann supercharger patent
Hi Jerry,
The illustration "Fig 2", may have been drawn incorrectly for a setup
with two rotors geared to rotate in the same direction. However,
it is quite difficult to tell, and may wel ...
  Topic: Daimler Benz vs Rolls-Royce
cdouglas

Replies: 6
Views: 3007

PostForum: Authors' Corner   Posted: Sat Sep 10, 2016 16:25   Subject: progress update
Hi Everyone,
The book is coming along quite well, I have about 85,000 words - and
at least one publisher seriously interested. So not bad.

I have started a "blog" type thing about the ...
  Topic: Daimler Benz vs Rolls-Royce
cdouglas

Replies: 6
Views: 3007

PostForum: Authors' Corner   Posted: Wed Apr 27, 2016 10:38   Subject: feedback
Hi,
Thankyou to everyone who replied, it was all useful info.

I`ll not attempt to respond to all those suggestions as it will
get unreadable and its not my intention to type the books contents
i ...
  Topic: Daimler Benz vs Rolls-Royce
cdouglas

Replies: 6
Views: 3007

PostForum: Authors' Corner   Posted: Sat Apr 09, 2016 12:56   Subject: Daimler Benz vs Rolls-Royce
Dear all,
I am writing a book on the development of the DB600 series
and the Merlin series (its going to be heavily weighted towards
detail on the German engine - I think the superb RR Heritage boo ...
 
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