Seller's Description
Radical Departure IV has been well cared for, maintained, upgraded, and is race ready. She is a successful PHRF C-Class boat with extensive winning race results inside the harbor, outside on buoys, and in point-to-point races. Easy to sail, ready to win. Crew of 3 to 6 depending on conditions. All sails in usable to great condition. One of only a few in the United States. Set up for both Symmetric and Asymmetric spinnakers. Always dry sailed. $19,995.00
Contact Christian: (949)-698-2079 email protected
Ullman Purchased Sail Inventory:
02/27/2013 Harbor Blaster Jib
04/12/2013 Fiber Path Lt. AP Jib
05/19/2015 Aramid Fiber Path Lt. AP Jib
03/04/2020 105% Fiber Path Plus J1 Jib
09/10/2021 Fiber Path Race Jib
02/27/2013 Code 0 Spin (Grey)
05/20/2013 Code A2 Asymmetric Spin (White)
07/30/2014 Code 2S Symmetric Spin (White)
07/30/2014 Black Fiber Path Main
09/06/2016 Fiber Path Main with TFT
09/10/2021 Fiber Path Race Main
Misc. Sail Inventory:
2017 Quantum A2 Asymmetric 0.5oz Max Runner (White)
2012 North Asymmetric 0.5oz Max Runner (White)
2000 North Asymmetric Deep Runner (Pink/Blue)
1997 Halsey Lidgard Class Symmetric Spin (White)
1995 Sobstad Asymmetric Reacher (Red/White)
2000 Quantum Dacron Main
1997 Halsey Lidgard Heavy Jib
1997 Halsey Lidgard Light Jib
Other:
Dual-Axel trailer with molded bunks and storage box (needs some TLC)
3.5ft Aluminum Bowsprit
Class Aluminum Spin-pole
Epoxy bottom wet sanded regularly with 1500-2000 grit
Rudder and Keel painted white, regularly wet sanded with 1500-2000 grit
Spinlock Tiller Extension
Rebuilt 5HP Mercury Two-Stroke outboard
Tylaska Snap Shackles on Spin/Jib halyards & Tack line
Extensive running rigging upgrades throughout (Nearly all upgraded lines are spectra)
Stanchions upgraded/machined for second row of life lines
Spectra lifelines
Newer hiking padding
Carbon backstay flicker and spectra backstay
Navigation lights
Boom Tent (cover)
Specs
- Designer
- Bruce Farr
- Builder
- Beneteau
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- Fin + Bulb
- Rudder
- Spade
- Construction
- FG
Dimensions
- Length Overall
- 24′ 6″ / 7.5 m
- Waterline Length
- 22′ 2″ / 6.8 m
- Beam
- 8′ 5″ / 2.6 m
- Draft
- 5′ 2″ / 1.6 m
- Displacement
- 2,760 lb / 1,250 kg
- Ballast
- 1,120 lb / 510 kg (Iron)
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 312′² / 29 m²
- Total Sail Area
- 312′² / 29 m²
Mainsail
- Sail Area
- 185′² / 17.2 m²
- P
- 30′ 10″ / 9.4 m
- E
- 11′ 11″ / 3.7 m
- Air Draft
- ?
Foresail
- Sail Area
- 127′² / 11.8 m²
- I
- 29′ 10″ / 9.1 m
- J
- 8′ 6″ / 2.6 m
- Forestay Length
- 31′ 0″ / 9.5 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
9.0 kn
Classic: 6.31 kn
Hull Speed
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Formula
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
- Sail Area/Displacement
-
25.4
>20: high performance
Sail Area / Displacement Ratio
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
Formula
SA/D = SA ÷ (D ÷ 64)2/3
- SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D: Displacement in pounds.
- Ballast/Displacement
-
40.8
>40: stiffer, more powerful
Ballast / Displacement Ratio
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Formula
Ballast / Displacement * 100
- Displacement/Length
-
112.8
100-200: light
Displacement / Length Ratio
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
Formula
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
- Comfort Ratio
-
10.7
<20: lightweight racing boat
Comfort Ratio
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Formula
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
- D: Displacement of the boat in pounds
- LWL: Waterline length in feet
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
- Capsize Screening
-
2.4
>2.0: better suited for coastal cruising
Capsize Screening Formula
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
Formula
CSV = Beam ÷ ³√(D / 64)
- Beam: Width of boat at the widest point in feet
- D: Displacement of the boat in pounds
Notes
Also built in New Zealand as the PLATU by McDell Marine.
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