The USCG, ABYC, Canadian and ISO rules all use the same formulas for horsepower for outboard powered boats under 20 feet (6 meter) based on center line length, transom width and transom height.
see chart below
Taken from Title 33 Code of Federal Regulations Subpart 183.53
Outboard Horsepower Capacity
Compute the Factor = Boat Length x Transom width If Factor is (to the nearest integer)
0-35
36-39
40-42
43-45
46-52
Horsepower is
3
5
7.5
10
15
Note: For flat bottom hard chine boats, with a factor of 52 or less reduce HP one capacity increment If the Factor is over 52.5 and the boat has
Remote Steering and at least 20" Transom Height
HP =
(2 x Factor) -90
No remote steering or less than 20" transom Height
For flat bottom hard chine boats
HP =
(0.5 x Factor) -15
For other boats
HP =
(0.8 x Factor) -25
So if your 14 foot boat is actually 13.83 (13 ft 10in) and has a 4.5 ft transom width the factor will be 62.23. If it has a 20 inch transom height and remote steering then 62.23 X 2 -90 = hp = 34.47 round that to 35.
If it has a 15 inch transom and/or tiller steering (the tiller on the motor) then it would be 62.23 x 0.8 -25 = hp = 24.78 round to 25 hp.
You have to measure the actual centerline length and transom width. Transom width includes rub rails. (in other words use the widest part of the transom)
For more info see the link provided below.
A 14-foot boat operating under oars after dark must show white light to prevent a collision.
A boat
159lb
Fast as heck. Most 14 fosters have a 10 to 15 horse and go around 15mph. A 35 horse would probly get it going over 30 mph.
A 14-foot boat operating under oars after dark must show white light to prevent a collision.
The answer is relative. I have a 4 1/2 HP motor on my 12 foot aluminum boat. It gets me where I need to go.
19 mph
Navigation Lights
A 14-foot boat operating under oars after dark must show white light to prevent a collision.
I have a 1974 sears 14 foot aluminum boat when I had a title search done it came back as a SEA Nymph it is actualy a 14 ft 3 inch.
you must have at least 1 white light
A 14 foot boat operating under oars after dark must show a white light to prevent a collision.