The Aerodrome Forum - View Single Post - Comparison Albatros D-II vs Albatros D-III

Greybeard · 2 January 2008, 03:22 AM

1.Albatros D.III was actually faster than D.II since it reached 109 mph like D.II but at 1000 metres of altitude (3280'), equivalent to 117 mph at SL.

2.Albatros D.III was powered by Daimler D.IIIa with increased compression ratio but not flat topped pistons, only less concave, developing 180 PS at 1450 RPM according to test performed at Adlershof and 174 HP at 1400 RPM according to test performed in England on a captured example and reported on Jane's 1919 (1990 reprint).

3.Albatros D.II was powered by Daimler D.III developing 166 PS at 1400 RPM according to Technische Berichte 1917 and 162.5 HP at same RPM according to british test, mentioned source.

Thanks to better power to weight ratio, Alb. D.III climbed faster than D.II, in addition to cited superior speed. Its only weak point was insufficient stiffness of bottom wing, as explained by Koloman, whose unique competence I too acknowledge.

GB

2 January 2008, 03:22 AM	#22 (permalink)
Greybeard Forum Ace Join Date: Jul 2005 Location: Italy Posts: 698	Answering original question 1.Albatros D.III was actually faster than D.II since it reached 109 mph like D.II but at 1000 metres of altitude (3280'), equivalent to 117 mph at SL. 2.Albatros D.III was powered by Daimler D.IIIa with increased compression ratio but not flat topped pistons, only less concave, developing 180 PS at 1450 RPM according to test performed at Adlershof and 174 HP at 1400 RPM according to test performed in England on a captured example and reported on Jane's 1919 (1990 reprint). 3.Albatros D.II was powered by Daimler D.III developing 166 PS at 1400 RPM according to Technische Berichte 1917 and 162.5 HP at same RPM according to british test, mentioned source. Thanks to better power to weight ratio, Alb. D.III climbed faster than D.II, in addition to cited superior speed. Its only weak point was insufficient stiffness of bottom wing, as explained by Koloman, whose unique competence I too acknowledge. GB __________________ ------------------------------------------------------ It doesn't matter what we do but in what relationship we put each other while doing what we do.