| |
The preliminary reports Nr. 1 and 2 shall become void with this report and are to be destroyed. |
| Reason: |
The DB 605 is to be incorporated into Me 109 production due to good results from a test installation with the VfW.
The prototype airplane was measured by the flight department in accordance with S-instruction 109/033/064. |
Test
Procedure: |
Standard performance measurement.. |
| Results: |
For comparison the corresponding performance of the Me 109 G in the same condition is shown in parentheses. |
| |
1.) Speed at sea level |
| |
|
315 mph (314) |
| |
2.) Speed at FTH |
| |
|
406 mph (391) |
| |
3.) Full throttle height |
| |
|
27,231 ft. (21,654) |
| |
4.) Climb rate at FTH |
| |
|
2,350 ft/min (2,546) |
| |
5.) Climb full throttle height |
| |
|
23,950 (18,700) |
| |
6.) Climb ceiling |
| |
|
39,698 ft. (37,730) |
| |
The performance results are converted to standard temperature. Combat power without GM 1 |
| Aircraft: |
Me 109 G 5
| W.Nr. 26108
| SL RR |
| Engine: |
DB 605 AS-0
| W.Nr.00702626
| |
| Propeller: |
3-fl.VDM-adjustable propeller
Sheet design 9-12087.31 |
D 3,0 m
b0,7 R = 0,30bm |
|
Condition
of the
machine:
| Production version, single wire antenna FuG 25 a, FuG 165 z radiator indicators, wing thermometer, tail wheel fixed.
Engine Cowling: 2 MG 131 bumps faired, left side enlarged for AS supercharger. |
| Weight: |
G = 7,033 lbs at take-off |
| Radiator:: |
Typ: ALF 750 B
F = 16,8 dm2 |
| Oil cooler: |
Type: FO 870
F = 6,5 dm2 |
Date of the
Flights: |
22.12.43 |
| Pilot: |
Schmidt, K., Schmid L. |
Conduction of
the measurements: |
Height, ram pressure, boost and supercharger pressure were constantly registered during the flight. |
| |
1. |
Speed at sea level |
| |
|
The speed at sea level was accomplished by a timed flight (Stoppflug) over the test course (stoppstrecke) at combat power ( n = 2600 rpm, p = 1,3 ata) with radiator
flaps closed (~ 40 - 50 mm opening). The result is converted to normal temperature and correct setting of the supercharger regulator. |
| |
2. |
Course of best climbing speed. |
| |
|
The specified speed of va = 162 mph was flown with the ME 109 G. The actual rate shown on page 4 is calculated using va = 162 mph. |
| |
3. |
Climb performance. |
| |
|
In order to preserve the engine, which was not yet completely run in, climbs started from approximately 19,685 ft. using combat power (n = 2600 rpm, PL = 1.3 ata). |
| |
4. |
High-speed flight |
| |
|
Level speeds were flown from ceiling to full throttle height, following the climb flights. |
| |
|
|
Radiator flap position: l. 60 mm |
| |
|
|
adiator flap position: r. 90 mm |
| |
|
The performance curves are shown on page 4 . |
|
| Augsberg, den 22.1.44
FAV-A/Schö/Da. |
|
