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1/48 card model

Roman Vasilyev

[e-mail]

©

Sack AS-6 V1

History

more powerful engines, it was decided to change the
incidence angle by moving the landing gear
backwards by 20 cm. Since the next wingspar was

located 40 cm farther aft, it was purposed to attach

In June of 1939, the first National Contest

the landing gear here, but this introduced the problem

of Aeromodels with Combustion Engines took

of having the landing gear too far aft and thus the

place at Leipzig-Mockau. Arthur Sack, who

plane could tip forwards on takeoff, destroying the

dreamed of a circular-winged aircraft, entered his

propeller. To compensate for this, brakes from a Ju 88

AS-1 model, but unfortunately, it had to be

were installed, 70 kg (of ballast was added just ahead

launched by hand and had poor flying

of wingspar number 3 and the tail control surfaces had

characteristics. Ernst Udet, who was at the time

20 mm of corrugated plate added. The third test took

Germany's Air Minister, encouraged Arthur Sack

place on April 16, 1944 on the 700 meter Brandis

to go on with his research. Sack built four

landing strip. The plane traveled 500 meters without

additional models of increasing size, culminating

the tail lifting, although a small, brief hop was

with his first manned aircraft, the Sack AS-6

achieved. On the fourth and final test, the jump was

The AS-6 was constructed at the

longer, and the AS-6 became airborne, but an

Mitteldeutsche Motorwerke company, with the

immediate bank to the left due to the torque of the

final assembly taking place at the Flugplatz-

engine became evident. The small span wings were

Werkstatt workshops at the Brandis air base in

too short to compensate for the engine's torque. The

early 1944. Five takeoff runs were made during

pilot recommended a more powerful engine and more

the second test on the 1200 meter Brandis

wind tunnel tests, and Arthur Sack went back to the

landing strip. During these tests, it was

drawing board for the remainder of the war.

determined that the control surfaces were in the
vacuum area behind the circular wing, and thus
did not operate adequately. The right landing
gear leg was also broken during the final attempt
of the second test. It was thought that the
problems arose due to the low power output of
the engine, but because of a wartime shortage of

Takeoff weight: ............................................ 900 kg
Wing span: ................................................. 5,00 m
Length: ...................................................... 6,40 m
H i

e gth: ...................................................... 2,56 m

Performance

3/2

2/3

1/48 card model

Roman Vasilyev

[e-mail]

©

Sack AS-6 V1

1

2

3

4

5

6

7

8

9

10R

10L

11

12

13

14

15L

15R

16

A

B

C

D

E

E

F

F

3/3

1/48 card model

Roman Vasilyev

[e-mail]

©

Sack AS-6 V1

Assembly instruction

1

2

3

3

4

4

5

6

7

8

9

10R

10L

11

12

13

13

14

15L

16

A

B

C

D

E

E

F

F