Prop to pad

[artdevilish]

I know it varies from boat to boat. Tires, air pressure etc. when you measure pad to floor what do you get? I had 14.75. Seems like my last boat was 15. Trying to figure out where 3.25 is on my atlas. I had to get to 14on gauge. What do most of you with atlas run? My first hydro.

[codywilsonfihsing]

tire/trailer height has no effect on measuring P2P. measure from ground to bottom of hull (when hull is level), then measure from ground to center of prop shaft (when prop shaft is parallel to sound), and subtract the two.


http://www.bbcboards.net/showthread.php?t=62660

[crank68]

I know it varies from boat to boat. Tires, air pressure etc. when you measure pad to floor what do you get? I had 14.75. Seems like my last boat was 15. Trying to figure out where 3.25 is on my atlas. I had to get to 14on gauge. What do most of you with atlas run? My first hydro.

I would also figure out how much your plate is traveling....

[artdevilish]

tire/trailer height has no effect on measuring P2P. measure from ground to bottom of hull (when hull is level), then measure from ground to center of prop shaft (when prop shaft is parallel to sound), and subtract the two.


http://www.bbcboards.net/showthread.php?t=62660

not sure I understand how if a boat sits 1" hire off of the ground (when level) because of tire pressure or trailer that wouldn't affect pad to ground level. You do understand d my question was pad to ground. That was my question.

[JR19]

Height of trailer or boat pad from the ground is irrelevant. That number will be what is used to subtract and find the actual prop to pad number...

Pad of boat is 20" from the ground. Center of prop is 16.5" from the ground. You use the pad to ground number and subtract the center of prop-shaft to ground number to find out the prop to pad distance. With the number listed prop to pad is 3.5"...now jack the trailer up 10" keeping everything level. Pad is 30" from the ground and center of prop is 26.5" from the ground. Your prop to pad distance is still 3.5" because the prop to pad height was never changed only the height of the trailer/boat off the ground.

In the diagram A and B can be any distance...its whats between A and B that you want to know.

If you want to know where a prop to pad height of 3.25" is on your atlas gauge just do a measurement as the jack-plate is currently set. Find prop to pad and adjust atlas to achieve 3.25". If you have an atlas gauge remember the number its on when your actual motor height is 3.25" That way if/when you raise/lower motor height you know where to adjust your motor to get back to 3.25"

[artdevilish]

I know it varies from boat to boat. Tires, air pressure etc. when you measure pad to floor what do you get? I had 14.75. Seems like my last boat was 15. Trying to figure out where 3.25 is on my atlas. I had to get to 14on gauge. What do most of you with atlas run? My first hydro.

Thanks. I get that. What I said above. Read it. Was wondering what most of you guys got from pad to floor. When measuring prop to pad I went 14.75 to pad to floor and 11.50 center prop to floor. 3.25 p to p. I was just asking what most measures pad to floor. Thought it was clear.

[Bonanza]

13.75 pad to floor

[artdevilish]

Thanks.
Jess

[Bassboater101]

15.5

the question is essentially pointless because of exactly what you said...to many variables from boat to boat