Theatre Design & Technology - Fall 1977 - 21

the trap stage which uses vertically moving machinery
extensively: the danger of accidents is reduced.
TECHNICAL DATA OF THE REVOLVING STAGE
ARRANGEMENT
Construction
weight
Revolving Stage
Rotating
Segment I
Rotating
Segments 11&111

Capacity during
motion

Stage
area

45,760 kg

9,000 kg

132.732 sq. m

5,860 kg

2,000 kg

43.982 sq. m

19,000 kg

12,000 kg

238.761 sq. m

meters, the gridiron at +28.2 meters.
Four fly floors in the stage tower are mounted at
heights of 9.45, 12.4, 15.35, and 23.05 meters, as well as
a control gallery, located at a height of 20,1 meters on the
counterweight side of the lifting tackle. Over the gridiron
there are two smoke outlets (in the roof), each with a filter capacity of 30 sq. meters,

Capacity when stationary: 500 kilograms per sq, meter
Revolving stage power 2 x 10 KW of 0 to 1 meter per
second continuously adjustable
Segment power 4 x 4 KW of 0 to 1 meter per second continuously adjustable
The power of the revolving stage is arranged so that it
can also revolve the coupled segments.
Between the rotating portion of the stage floor and
the first row of seats in the audience there are two orchestra platforms. In this space, orchestra areas of various sizes
can be erected, accommodating up to 100 musicians, The
first platform has a lifting height of 2.8 meters. The
second platform, with a lifting height of 3.1 meters, is
developed as a doubledeck platform.
The upper floor of the doubledeck platform includes
a part of the third rotating segment (see ground plan).
If the platform is lowered, a section of the segment is
detached from the platform.

Chain drive lifts (2 x 8 meters) located in the central
revolve (13 meter Dia.) Karlsruhe State Theatre.

Karlsruhe State Theatre, view of large house stage from
fly loft.
TECHNICAL DATA OF THE ORCHESTRA
PLATFORMS
Construction
weight
Platform I
Platform II

6,940 kg
23,870 kg

Capacity during
motion

3,000 kg
6,000 kg

Floor
space

28.6 sq. m
30 sq. m

The lifting of the platforms is achieved with drive shafts
which have a speed of .05 meter per second. Platform I
has a drive with a power of 8.2 KW, platform II, of
19.5 KW.
RIGGING SYSTEMS
The stage tower, from the lowest level of the basement
to the ceiling, has a height of 34 meters. The loft and gridiron are separated. The loft is located at a height of 26

I USITT I

The following rigging equipment was installed over the
acting area:
39 hand sets, doubled, pipe batten length 18.2 to 22.4
meters.
8 hand sets, doubled, pipe batten length 12.2 to 22.4
meters.
4 panorama sets, doubled, pipe batten length 14.64
meters.
4 panorama sets, doubled, pipe batten length 17 meters.
1 curtain set, pipe batten length 24.3 meters.
15 electric sets, pipe batten length 18.2 to 22.4 meters.
The hand sets are constructed with a lifting capacity of
300 kilograms. The electric and curtain sets with 500
kilogram capacity are provided with a drive pulley mechanism. The motor has a power of 7.6 KW per set. The
speed of the powered sets can be continuously controlled
from 0 to 1.5 meters per second.
Each pipe batten is suspended from six cables and has,
by virtue of its great length and lifting power, a diameter
of 76 mm and a wall strength of 5 mm. The total distance
of travel for each set is 25.2 meters.
For the suspension of cycloramas of various sizes, two
electrically driven curved battens each, with a carrying

THEATRE DESIGN AND TECHNOLOGY

FALL,1977

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