Dynamic lift ship representing a heavy hydrofoil. Fuel weight 377.6 LT. Dimensions 209.2 x 42.4 x 11.0 x 20.5 (freeboard) feet. Range 3,100 (at 30 knots)-1,800 (at 50 knots) nautical miles.
Performance of a representative DFM-fuelled Destroyer Escort Hydrofoil (DEH) in 1975. Dynamic lift ship representing a heavy hydrofoil, weight 1,363 light tons, dimensions 200 (waterline) x 40.5 (waterline) x 12.0 (ship draft) x 16.0 (ship freeboard) feet. Propulsion 1 screw. Horsepower 80,000 hp. Maximum speed 52 knots. DFM fuel weight 456 LT. Cruising speed 30 knots. Range at cruising speed 3,150 nautical miles based on 10 percent fuel reserve rounded to nearest 50 nautical miles.
Destroyer Escort Hydrofoil (DEH) general applicable for the next specific warfare areas:
ASMD=self protection against anti-ship missiles
ASW (P)=force protection against subsurface threats
AAW=force attribution of airborne threats
ASUW=warfare against surface ship threats
EW=electronic warfare
CDS=combat direction systems
SURV=surveillance
AMW(L)=amhibious lift capability
NGFS=naval gunfire support
MIW=mine warfare
MLS=mobile logistic support for sea-based forces
SPW=special warfare
Principal mission characteristics
Mission: sea control defense of protected convoy lane
Duration in day: 7.2
Range in nautical miles: 5,200
Mission description: sweep of 2,600 miles protected lane both ways using sprint and draft tactic for submarine search. Sprint 45 knots.
Ship operational parameters
Days in op area:7.2
Op area day profile in hours: 16
Op area day profile in knots: 45
Op area day profile in nautical miles: 720
Total time at speed in hours: 115.4
Total time at speed in knots: 45
Source
Hydrogen. Hearings before the subcommittee of energy research, development and demonstration of the committee on science and technology U.S. House of Representatives. Ninety-fourth congress, first session June 10 and 12, 1975, p. 1027 and further
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