[Kodoss]

from "Radinger, Schick, Otto: Messerschmitt Bf109" Aviatik Verlag

V-15
BF-109, W.Nr. 1773; D-IPHR
Engine DB-601A, W.Nr. 140 with one-stage compressor [4km full pressure] (einstufiger Lader, 4km Volldruckhöhe), 1100 PS
VDM-Verstellschraube with 3,10m diameter
400l fuel tank
armory: 2MG 17 in fuselage, 2MG 17 in wing

Half hour flight on 4. Feb. 1938 in Augsburg and tested at the same day in Rechlin.
In April back in Augsburg and used as prototype for Bf-109 T-series wing tests.

interesting is that that both prototypes suffered power loss in full pressure height.
V15: 146PS in 3900m height tested on 6. 7. and 9 May 1938
V15a: 200PS 26. April 1938
How this problem was solved is unknown to the authors since there is no report.


EDIT: By the way L.Dv.556/3 says for E-1, E-3

height / Max. Speed
0 km / 460 km/h
1 km / 480 km/h
2 km / 500 km/h
3 km/ 520 km/h
4 km / 540 km/h
5 km / 555 km/h
6 km / 555 km/h
7 km / 550 km/h

Max. allowed horizontal speed at SL 485 km/h

Engine: DB-601A (full pressure height 4 km)
at SL:
1min. power 1175 PS at 2500 rev/min
5min. power 1015 PS at 2400 rev/min
30min power 950 PS at 2300 rev/min
continuous power 860 PS at 2200 rev/min

power in height:
5min. power in 3,7km 1100 PS at 2400 rpm
continuous power in 4,1km 1050 PS at 2400 rpm
continuous power in 4,5km 1000 PS at 2400 rpm
economic continuous power at 3,85km 975 at 2250 rpm

VDM-Verstellschraube 3,10m diameter