Just a couple questions on air flow?

[coondog123]

Anyone experience more power during the winter than they do the summer.

Can you pitch your blades to a point that when your boat meets resistance you get into a stall condition? I am not even sure an airboat can stall but I know in the industry I am in we have variable pitch fans and if you increase the pitch near max and the head increases a stall condition will occur.

 

[K-mac]

Cool dense air ingested into an internal combustion engine will make
more power than warm air. That's why precoolers are popular in the
truck world, I guess this could equate to running better in the winter
time. As for the prop being over picthed, since a prop is like two wings
or air foils moving thru the air, not like a flat fan blade once they get to
a point where the flat side of the wing is pushing thru the air like a paddle
then it seems it would be an impeller rather than a propeller, moving
air outward from the hub with centrifugal force and no longer push
forward or backward. Like a water pump, or squirrel cage fan.
I don't swear this to be gospel, but it seems right.
A propeller will likely push better in cool dense air as well.