Old 10th February 2018, 07:12 AM   #1
Arnie
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Join Date: Aug 2011
Posts: 2
Default Ultrasonic 147 or 147 Foil

Hi,
I'm looking into buying a Ultrasonic 147 or the 147 foil
As I want it for 75% lightwind windsurfing with a 9.5 Ezzy Cheetah
and 25% for foiling.

Which one would plane the earliest in the windsurfing mode?
I'm not worried about speed or ease of use, Just early Planing

The 147 Foil seems to have a fuller tail does that mean earlier planning?
In foil mode what disadvantage would the Ultrasonic have over the 147 Foil?
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Old 11th February 2018, 01:28 AM   #2
mark h
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Join Date: Aug 2006
Location: NW England,
Posts: 791
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Not the SB team here.

I "think" the 147 foil has more nose rocker to help stop catching the nose and catapults. The U147 has a less nose rocker to aid early planning.

The 147 foil has additional reinforcement, so slightly heavier, but tougher. I reckon the U147 will plan slightly earlier.

I might be wrong
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The toys:
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North Warps: F2014 5.2m, 5.7m, 6.3m, 7m, 7.8m, 8.6m, 9.6m
F-Hot fins (slalom). Tectonic Nomads (speed)

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