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2017-11-20

ENGINES

DB600 Series

DB601A

DB601N

DB603

DB605A

DB605AM


  Article  

Reproduced from : http://kurfurst.org/index.html
     
     
 

DAIMLER  DB600  SERIES

 
     
  See also:  Piston Engines  AAC V12 Engines  Bf109.AAC  Bf109.Variants  He177C.Griffin  
   
                                     
Model DB601 DB601 DB601 DB601 DB603 DB603 DB603 DB603 DB605 DB605 DB605 DB605 DB605 DB605 DB605 DB605 DB605 DB605
Variant A1 AA N E A1 AA E S A AM AS ASM ASBM ASCM B D DB DC
Booster - - - - - - - TK11 - MW50 - MW50 MW50 MW50 - MW50 MW50 MW50
Fuel B4/87 B4/87 C3/100 B4/87 B4/87 B4/87 B4/87 B4/87 B4/87 C3/100 B4/87 B4/87 B4/87 C3/100 B4/87 B4/87 B4/87 C3/100
Application Bf109E3 Bf109E5 Bf109E6 Bf109F - - - He274 Bf109G - - - - - Saab21 - - -
hp Power: Max 1100 1166 1250 1430 1560 1560 1560 2000 1475 1475 1475 1475 1475 1475 1475 1475 1475 1475
hp Power: Extra - - - - 1725 1650 1775 - - 1775 - 1775 1775 1975 - 1700 1775 1975
hp Power: Cont. 1035 1115 1195 1365 1490 1490 1490 1850 1065 1065 1065 1065 1065 1065 1065 1065 1065 1065
Displacement (L) 33.9 L 33.9 L 33.9 L 33.9 L 44.5 L 44.5 L 44.5 L 44.5 L 35.7 L 35.7 L 35.7 L 35.7 L 35.7 L 35.7 L 35.7 L 35.7 L 35.7 litre 35.7 litre
Weight:kg 700.kg 700.kg 700.kg 700.kg 910.kg 910.kg 910.kg 910.kg 756.kg 756.kg 756.kg 756.kg 756.kg 756.kg 756.kg 756.kg 756.kg 756.kg
Weight:lb 1540.lb 1540.lb 1540.lb 1540.lb 2002.lb 2002.lb 2002.lb 2002.lb 1663.lb 1663.lb 1663.lb 1663.lb 1663.lb 1663.lb 1663.lb 1663.lb 1663.lb 1663.lb
SFC:lb/hp/hr 0.474 0.440 0.440 0.440 0.474 0.474 0.474 0.400 0.532 0.350 0.350 0.350 0.350 0.350 0.350 0.350 0.350 0.350
Length (mm) 1722 1722 1722 1722 2611 2611 2611 2611 2158 2158 2158 2158 2158 2158 2158 2158 2158 2158
Width (mm) 760 760 760 760 830 830 830 830 760 760 760 760 760 760 760 760 760 760
Height (mm) 1016 1016 1016 1016 830 830 830 830 1037 1037 1037 1037 1037 1037 1037 1037 1037 1037
DB601
Performances details of the DB601A will be used for the Bf109E3 aircrafts of the Swiss Air Force (highlighted against white background in the above table).   As far as the SFC is concerned, early war French test flights of 1939 indicated an average fuel consumption of 230 gr/HP/h or 300 litres/hour, while original Messerchmitt documents seems to indicate a more favourable SFC of either 220 gr/HP/h (maximum output) or 210 gr/HP/h (max continuous output).  Nota : German documents rate the 400 litres fuel loat at 303 kg, thus a ratio of 0.7575, close to AAC 0.76
Power Settings SFC            
990 hp (max) 0.220 kg/hp/hr 9900.7575 kg/l = 287.52475 l/hr 63.331442 gal/hr
800 hp (continuous) 0.210 kg/hp/hr 8000.7575 kg/l = 221.78217 l/hr 48.850698 gal/hr
Translated into AAC Standards     metric =blue imperial =red
Average 0.215 kg/hp/hr 0.76 kg/l   0.283 lt/hp/h 0.215 kg/hp/hr
Average 0.215 kg/hp/hr 0.454 7.6 lb/gal 0.062 gal/hp/hr 0.474 lb/hp/hr
                     
AAC Standard Values [lb/hp/hr 0.132 = gal/hp/hr] 0.062 gal/hp/hr 0.474 lb/hp/hr
DB605
With the DB605A being the standard of the type (including Bf109G6 operated post war by Finland), and the similar DB605B having been produced under licence in Sweden, this version is the standard version used in AAC (thus without the MW50 booster device).   Regarding SFC, post-war Finnish Air Force Pilot's Notes stipulates fuel consumptions as 320 to 480 litres/hour, while German documention refers to 215-220gr/hp/hr
Power Settings SFC            
1475 hp max sea level 480 litres/hour 14750.7575 = 0.3254237 lt/hp/h 0.2465084 kg/hp/hr
1344 hp max altitude 440 litres/hour 13440.7575 = 0.3273809 lt/hp/h 0.2479910 kg/hp/hr
1080 hp continuous 320 litres/hour 10800.7575 = 0.2962962 lt/hp/h 0.2244443 kg/hp/hr
Translated into AAC Standards     metric =blue imperial =red
Average 413 litres/hour   13000.76 0.318 lt/hp/h 0.241 kg/hp/hr
Average 413 litres/hour = 90.969 gal/hour 13007.60 0.070 gal/hp/hr 0.532 lb/hp/hr
Power Settings SFC            
1475 hp max sea level 0.220 kg/hp/hr 14750.7575 = 324.500 l/hr 71.475770 gal/hr
1080 hp continuous 0.215 kg/hp/hr 10800.7575 = 232.200 l/hr 51.145374 gal/hr
Translated into AAC Standards     metric =blue imperial =red
Average 0.2175 kg/hp/hr 0.76 kg/l   0.286 lt/hp/h 0.218 kg/hp/hr
Average 0.2175 kg/hp/hr 0.454 7.6 lb/gal 0.063 gal/hp/hr 0.479 lb/hp/hr
                     
AAC Standard values [lb/hp/hr 0.132 = gal/hp/hr] 0.070 gal/hp/hr 0.532 lb/hp/hr
DB603 (Re: He177C)
The tables show the most commonly know variants, but it is worth mentioning a couple of additional variants :
DB603E

2050 hp

developped into the DB603EB, which became the DB603G allegedly installed on several (38 ?) He219 airframes in 1945
DB603N

2850 hp

high altitude engine, using C3/99 octane fuel
DB603L

2400 hp

high altitude engine, using B4/87 octane fuel
DB603S

2000 hp

high altitude engine, using B4/87 octane fuel, thanks a Bosch TK-11 turbosupercharger
For the sake of making the He177C a high altitude "strategic" bomber, a faked power curve has been imagined and inserted among existing (?) data for other variants of this engine :
Regarding SFC, in the absence of precise data (March, 2015), the engine will be made "efficient" for the purpose of the game
Power Settings SFC            
- - - - - - - - -
Translated into AAC Standards     metric =blue imperial =red
Average -   - - lt/hp/h - kg/hp/hr
Average - - - - gal/hp/hr - lb/hp/hr
                     
AAC Standard values [lb/hp/hr 0.132 = gal/hp/hr] 0.053 gal/hp/hr 0.400 lb/hp/hr
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