TABLE 14.6 TOTAL LIFE SUPPORT DURATION (MAN-HOURS) (Cont.) 



100 



200 



300 



400 



SEA OTTER 



SEARAY 



SEA RANGER 



SHELF DIVER 



SHINKAI 



SNOOPER 



SP-350 



SP-500 (2 Vehicles) 



SP3000 



SPORTSMAN 300 



SPORTSMAN 600 



STAR I 



STAR II 



STAR III 



SUBMANAUT (HELLE) 



SUBMANAUT 



SUBMARAY 



SURV 



SURVEYSUBl 



TECHDIVER 



TOURS-64 



TOURS-66 



TRIESTE 



TRIESTE II 



TRIESTE III 



TUDLIK(PS-2) 



TURTLE 



VASTMK II (K-250) 



VIPER FISH 



V0L-L1 



YOMIURI 



FNRS-2 



FNRS-3 



— 16(2) 

 — 16(2) 



-18 (1) 

 48 (2) 



500 



200 (3) 



32 (2) 



120 (4) 



72 (4) 



192 (4) 



24(2) 



- 96 (2) 



24 (1) 



■144 (3) 



120 (2) 



■24(2) 



■ 300 (6) 



•32 (2) 



100 (2) 



■240 (3) 



■40 (2) 



60 (2) 



60 (2) 



72 (3) 



72 (3) 



72 (3) 



72(2) 



105 (3) 



-6(1) 



-48 (2) 



■192 (4) 



492 



-100 (2) 

 -100 (2) 



(6) 



( )*Normal crew complement including passengers. 



very short ranged and carrier frequencies 

 are not consistent. 



Fortuitously, most use a carrier frequency 

 of about 8 kHz, and are compatible with U.S. 

 Navy underwater telephones (UQC) which 

 operate on 8.0875 kHz. This means that they 

 may be assisted by a variety of Naval as well 

 as civilian vessels. The underwater tele- 

 phones reported in use aboard submersibles 

 are shown in Table 14.7. It shows that a few 

 operate on other than 8 kHz, thus precluding 

 communications not only with Naval units 

 but most other submersibles as well. From 

 the sources available, the only known excep- 



tions to the 8-kHz carrier frequency are SEA 

 OTTER, SUBMANAUT (Helles), PS-2, KU- 

 MUKAHI (24-28 kHz) and SP-350 (42 kHz). 



The ranges presented in Table 14.7 are 

 advertised ranges and, in some cases, ranges 

 supplied by the vehicle's owner. These are 

 slant ranges, and allowance must be made 

 for the vehicle's depth and bearing relative 

 to the support craft when computing hori- 

 zontal range. Depending on water conditions 

 these ranges may be more or less than speci- 

 fied. The bathyscaph TRIESTE obtained ex- 

 cellent reception and transmission at a depth 

 of 35,800 feet with its 8-kHz underwater tele- 



678 



