Monday, February 22, 2016

Iskareen - Design 275

,
Conewego and Prelude for comparison. Here's an interesting comparison between the body plans of the various new tank test models. The curves at lower left are differences to the rudder profile as well.


In the diagram:
#1 - Original model.
#2 - Tumble-home increased.
#3 - Lower edge of rudder cut away. Keel fined at bottom at stations 8 and 9.
#4 - Lower edge of rudder brought back, upper rudder profile filled out. Profile lowered at stations 1, 2, 3, and 4. Sections filled out at stations 1, 2, 3. 4 and 5.

These 4 models were tested and in turn tested against the Conewego and Prelude models. Model #4 of the new series proved to be the fastest.

I can't possibly post an article about Iskareen without the passage from
Principal Dimensions
LOA 48'-10"
LWL 30'-10"
Beam 8'-1"
Draft 6'-7"
Displacement 19,531 lbs
Ballast 13,100 lbs (outside) 661 (inside)
Sail Area 816 sq ft

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