| Date: |
Take-off: |
Landing: |
Duration: |
Pilot:
|
| 6.1.43 |
10 57 |
11 28 |
31' |
Märschel
|
|
14 11 |
14 17 |
6' |
"
|
|
14 25 |
15 05 |
40' |
"
|
|
15 37 |
16 25 |
48' |
Kampmeier
|
| 7.1.43 |
11 29 |
12 26 |
57' |
"
|
|
14 38 |
15 43 |
1h 5' |
"
|
| 8.1.43 |
8 36 |
9 36 |
1h |
"
|
|
12 19 |
12 26 |
7' |
Märschel
|
|
14 25 |
15 13 |
48' |
"
|
|
15 51 |
16 17 |
26' |
"
|
| 11.1.43 |
15 12 |
15 54 |
42' |
"
|
| 12.1.43 |
15 09 |
15 51 |
42' |
"
|
| Condition: |
Engine BMW D 2/85259
|
|
Fighter bomber use
|
|
ETC 501 with intermediate rack under the fuselage
|
|
Each wing an un-faired ETC 501 rack with limited loading capacity (only for empty auxiliary tank)
|
|
Further condition: see flight report No. 2
|
| Program: |
1.) |
Level speeds with combat power for the operational conditions:
|
|
a.) |
Clean machine, without attachments
|
|
b.) |
with 3 x 501 ETC racks
|
|
c.) |
with 2 auxiliary tanks without bombs
|
|
d.) |
with 2 auxiliary tanks and 551 lb. (250 kg) bombs
|
|
2.) |
Check of the flight characteristics after mounting the racks under the wings.
|
| Results: |
1.) |
The level speeds for combat power are given on the accompanying graph.
Speed losses at Sea Level (0 m) height are:
|
|
a - b) |
for 3 x ETC 501 Δ V = 14 mph (22 km/h)
|
|
a - c) |
for 3 racks with auxiliary tanks Δ V = 36 mph (58 km/h)
|
|
a - d) |
for 3 racks with auxiliary tanks and a 551 lb. (250 kg) bomb Δ V = 45 mph (73 km/h)
|
|
|
In
operational condition d), with tanks and bombs, the absolute level
speeds are approximately equal to the values that were obtained for the
fighter bomber with the large Ju-87 tank fairing (275 mph to 277 mph) (442 km/h to 445 km/h), while the return flight condition b) without tanks or any bomb, No. 619 is better regarding speed (306 mph to 293 mph) (492 km/h to 471 km/h).
A comparison with the planned Fw-rack for 551 lb. (250 kg) bomb can only follow after first converting it to an auxiliary tank rack.
|
|
2.) |
In
contrast to the bare Ju 87 rack, a degradation of flying qualities is
not experienced by installing the ETC 501 under the wings.
Aileron flutter was not observed.
|
|
|
Wenzendorf, 20 January 1943
Me/Kl.
|
|
