| EXECUTIVE
SUMMARY
|
The VenTure's
hydrodynamic design is the product of concentration on spray reduction,
longitudinal and lateral stability, and efficient, low trim planing performance.
Hull design began with the assumption that all hull dimensions and characteristics
would affect the VenTure's waterborne performance.
Limits outlined in References H.2 and H.3 form a guideline that the design
process followed to choose hull dimensions.
The step and forebody planing area provide adequate ventilation of
water flow, lowering surface tension, and expediting transition from water
to air. In addition to offering low spray patterns, the hull lines
are also designed to limit impact loading on landing. The forebody
shape and afterbody sternpost position prevent the likelihood of porpoising
and provide longitudinal stability. Sponsons accomplish the task
of providing lateral stability while providing comfortable ingress and
egress. A retractable water rudder contributes to taxiing maneuverability.
Figure 9 shows hull dimensions
and water lines for the VenTure's full and empty loading
conditions. Detailed explanations of the selection processes for
hull, sponson and rudder dimensions are given in Appendix
H.
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