these facilities would be by the Federal agencies, 
academia, and industry. 
Realizing the above projections would raise the 
utilization of submersibles without lockout to near 
full capacity and require two additional lockout 
submersibles. The results of the University of New 
Hampshire (UNH) study show an additional need 
for two nonlockout submersibles and one lockout 
submersible which, if added to the Federal agency 
requirements, would require additional facilities. 
However, the overlap between the UNH results and 
the usage factors included in this survey of Federal 
agencies has not been determined. 
There were insufficient data to match a given pro- 
gram with a given platform, particularly in view of 
the limitations of platforms given in section II. In 
general, however, the proportion of programs con- 
centrating in the Continental Shelf coincides reason- 
ably well with the proportions of platforms capable 
of shelf operations. The same is true for the con- 
tinental slope. A problem could occur if a depth 
capability in excess of ALVIN’s 12,000 feet (ti- 
tanium sphere) is required. Only the partially dis- 
Academia 
University of 
New Hampshire Study 
Survey of 
Federal 
Agencies 
NAS/NAE 
Manned Undersea 
Activities 
Workshop 
Unsolicited 
Proposals From 
Academia and 
Industry To 
MUS&T 
Figure 4. Developing requirements for use of 
manned undersea platforms. 
29 
assembled ALUMINAUT, with newly machined 
hemiheads, would be suitable. 
SCUBA SHIPS 
Since the survey was designed primarily to investi- 
gate submersible and habitat utilization, the accumu- 
lation of data on requirements for scuba ships was 
generally acquired from questions on the use of 
divers. The preliminary analysis of the data indi- 
cates that one or two such ships could be used by 
a combination of agencies. It is believed that the re- 
sults of the UNH analysis, which show a need for 
two scuba ships, reflect the requirements of scientists 
whose research is sponsored by the National Science 
Foundation as well as other supporting agencies. 
SUMMARY 
The requirements for use of national manned 
undersea platforms are influenced by a number of 
factors as shown in figure 4. This illustration in- 
dicates that other requirements that could involve 
Federal sponsorship, in addition to those derived in 
the survey of Federal agencies, were noted relative 
to their impact on platform utilization. 
Requirements 
Requirements for 
Manned Undersea 
Activities 
and 
Utilization of 
Manned Undersea 
Platforms 
Requirements 
Overall 
Goals and Programs 
Unsolicited Proposals 
(Requirements Proposed) 
Projected 
Growth 
Potential Growth | 
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