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Ultimate 20 Dimensions for Handicapping
Overall
length: 20.83'
Beam: 8.33'
Waterline
length: 18.0'
Draft: 5.0'
Displacement:
1350 lbs (note: the U20 hull weighs 1100
lbs, but 1350 is what to put on your U20 PHRF
certificate since it includes all gear, spars,
sails, and motor)
Ballast: 450
lbs (lead)
Sail area:
306 sq. ft.
Mainsail: 206
sq. ft.
Jib: 100 sq.
ft.
Class
spinnaker: 452 sq. ft. (0.75 oz.)
PHRF
spinnaker: 485 sq. ft.
"I" (foretriangle
height): 26.08'
"J" (foretriangle
base, front of mast to headstay at deck): 6.97'
"P" (mainsail
luff): 27.33'
"E" (mainsail
foot): 10.17'
"EY" (mizzen
foot): not applicable; enter as 0
"G" (girth of
spinnaker, a.k.a. "SMW"): 17.7'
"H"
(spinnaker halyard height, a.k.a. "ISP"): 27.58'
"ISP"
(spinnaker halyard height): 27.58'
"HB"
(headboard width): 0.46'
"JSP" (front
of mast to tackline with sprit extended): 12.79'
"JC"
("corrected J", a symmetrical spinnaker term that is
not well defined for asymmetric spinnaker boats):
furnish JSP and a profile diagram of U20 with sprit
extended
"LLJ" (length
of luff of jib): 25.13'
"LLS" (length
of luff of spinnaker): 30.42'
"LP" (jib
clew to luff, measured perpendicular to luff): 7.96'
(114% of J)
"MGM"
(mainsail mid-girth): 7.96'
"MGU"
(mainsail upper girth): 5.5'
"PY" (mizzen
hoist): not applicable; enter as 0
"SL"
(spinnaker pole length): 6'
"SMW"
(spinnaker width): 17.7' (254% of J) |
