Seller's Description
Built in 2007
Hull Number #11
Hull ID number is RBI220110707
LOCATION DETAILS:
– Columbus, Ohio SAIL
INVENTORY:
– 2020- Ullman Mainsail (Higher aspect shape sails great!)
– 2020- Ullman Jib – Carbon Flex LS (110%) ($2500)
– 2013- Doyle jib (100%) – 2009- Doyle mainsail
– 2009- Doyle jib (110%)
– 2009- Doyle 70 series Asymmetrical (Lt. air reacher)
– 2009- Doyle 110 series Asymmetrical (Fuller cut, really moves the boat deeper)
EQUIPMENT:
– New Black Mainsail cover 2021
– New Black Jib sock 2021
Carbon Boom
– New extra carbon fibre boom
– Carbon Mast
– Carbon Tiller
– Carbon Asymmetrical Spin Pole
– TackTick wireless system
– Display unit – Compass, timer and start-line bias – Mounted transducer – Speed, depth and temp.
– Wired hull transmitter – Wirelessly sends data to the display unit
– Solar Panel
– Solar Power Regulator – 2 12v Batteries
– Padded lifelines
– Interior LED cabin light
– LED Nav Lights
– Keel raising/lowering system
– Custom boat cover (In rough shape, but it works for storage)
– Various ratchet straps and padding for trailering – 2- sliding hatches (One for keel up and another for keel down)
– Boat Hook
– Loos Gauge
– Spinnaker Launching Bag
MOTOR:
– Tohatsu Outboard
– 2017 – 4 stroke
– 3.5 horsepower
– Tohatsu long shaft
TRAILER:
– 2007
– Road Runner
– Surge brakes
– Custom bunks
– LED Lighting
– Bearing Buddies
KNOWN ISSUES:
Boat is in overall very good shape, but it does have a few dings here and there. I tried to be honest about these spots and there are photos for clarification
– 2 inch small repair on deck that is slightly discolored but not a structural issue. This was done prior to me.
– There are a couple of chips in the gelcoat on the hatch that covers the onboard cooler
– Bottom spreaders were replaced with aluminum. Tops are original and I have a set of aluminum to replace them if needed.
– The bottom 18″ of the sail track was removed because when Cunningham applied, the load pulled just enough back to continually separated the track from the mast. I was concerned it might someday unzip the whole mast track from the mast, so removed it and I now use a Velcro strap to keep the sail tight to the mast.
– On my list for this winter is to re-caulk where the deck meets the hull. Nothing structural, more cosmetic.
– Painted at the waterline with VC17. (2021) – Not necessarily an issue, but wanted to note it
MORE INFO https://www.facebook.com/groups/1233054130084559 https://www.sailmagazine.com/boats/rocket-22 https://sailboatdata.com/sailboat/rocket-22
Specs
- Designers
- Don Martin
- Gary Mull
- Builder
- Rocket Boats
- Associations
- ?
- # Built
- 15
- Hull
- Monohull
- Keel
- Lifting
- Rudder
- ?
- Construction
- FG
Dimensions
- Length Overall
- 22′ 0″ / 6.7 m
- Waterline Length
- 21′ 5″ / 6.6 m
- Beam
- 8′ 5″ / 2.6 m
- Draft
- 0′ 11″ / 0.3 m — 5′ 8″ / 1.7 m
- Displacement
- 1,600 lb / 726 kg
- Ballast
- 600 lb / 272 kg
Rig and Sails
- Type
- Sloop
- Reported Sail Area
- 312′² / 29 m²
- Total Sail Area
- 313′² / 29.1 m²
Mainsail
- Sail Area
- 183′² / 17 m²
- P
- 30′ 6″ / 9.3 m
- E
- 12′ 0″ / 3.7 m
- Air Draft
- ?
Foresail
- Sail Area
- 130′² / 12.1 m²
- I
- 28′ 10″ / 8.8 m
- J
- 8′ 11″ / 2.7 m
- Forestay Length
- 30′ 2″ / 9.2 m
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
-
10.1 kn
Classic: 6.21 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
-
36.5
>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
-
37.5
<40: less stiff, less 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
-
72.0
<100: Ultralight
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
-
6.6
<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
-
2.9
>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
A development of the earlier, Mull designed, POCKET ROCKET.
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