(2) Room Constants.
ft. high. All personnel doors to Engine Rooms are
of fireproof metal construction.
(a) Engine Room No. l is 60ft. by 40ft. by
(b) Engine Room No. 2 is similar to Engine
30 ft. high, and its full ceiling area is covered with
a thick sound absorption material of NRC = 0.75 to
Room No. 1 in all but the following differences: the
room area is 50 ft. by 40 ft., the Control Room
0.85 (para 5-3b of the N&V manual). All side walls
are expected to be of 10-in. hollow-core concrete
viewing window is 12 ft. by 4 ft., and the air intake
vent on the exterior east wall is 6 ft. by 10 ft. with
block, if this will satisfy the acoustic requirements.
an expected 40 ft. fully open area.
The viewing window between this Engine Room
(c) Room Constants for the two Engine
and the upper-level Control Room is to be l/2-in.-
Rooms are estimated with the use of DD Form
thick safety plate glass, 18 ft. wide and 4 ft. high.
The steel roll door to the Receiving Room is of
2295. Figures 45 and 46 show the filled-in data
forms for these two rooms.
l/8-in. -thick steel, and its area is 10 ft. wide by 18