Measure Your Boat
as shown below
Select Foil
Check
Stay Diameter
Select Model
Don't know the Fore Stay Diameter?
Guidelines for a Great Fit.
Question: Does the Furler need to go all the way to the top?
Answer: No
Alado does not need the boat's halyard to keep the system aloft. This means you can use a smaller sail or re-cut an existing Hank On.
Question: If I need extra foils because I choose to use a smaller sail can I buy later?
Answer: Yes, but it is much more economical to just order the full size and save the extra foils.
New Roller Furling
Every boat has different deck fittings and configurations that your Alado Roller Furler will easily adapt to. You need exact measurements to ensure a good sail fit.
For optimal fit, once the system is installed, take the final measurement from the Top sheave to the Top of the drum and order your sail.
Replacing a Roller Furling installation.
Remove any existing furler equipment on the forestay.
The sail you have will allow you to more accurately determine the foil length needed for Luff Size.
Always allow a minimum of 6 inches from the top of the mast and calculate the height from the top of the Drum.
One of the most often asked questions we receive is about the fit of existing or new sails to the foils.
Alado Foils are precisely designed to handle both the most common and custom luff sizes.
Roller Furling Sails are designed using a Luff Tape, which consists of a Bolt Rope inside a Dacron Sleeve.
The Alado Foils have two apertures on each side. The inner aperture allows enough room for the Bolt Rope to fit inside and slide up, while the second aperture AKA "The Gap" allows the sewn Dacron to also slide up while at the same time is small enough to prevent the Bolt Rope from coming out of the Alado Foil horizontally.
Generally speaking "The Gap" can be between 40 to 60% smaller than the Bolt Rope.
Sail Luff Sizing 101
Luff sizes in North America are traditionally based on fractional measurements of 1/32" of an inch.
A #5 Luff Size is 5/32 of an inch (3.97mm) and a #6 Luff Size is 6/32 of an inch (4.76 mm) with larger or smaller sizes following the same incremental flow.
The actual Luff Size is also based on the Bolt Rope itself and does not take into account the "Finished Luff" which contains the Dacron and the Thread. which can vary with each Sailmaker.
Generally speaking, that adds about .04 inches (1 mm).
Example, a #6 Luff Tape (6/32 0r 4.76mm) is realistically going to be closer to .216 Inches (5.5mm) in size.
Alado Foils are engineered so that each half precisely interlocks while providing the Luff Bolt enough room to slide in, while at the same time the Luff Gap is just large enough to allow the Dacron to slide but small enough to prevent the Bolt Rope from being pulled out by nature's forces.
