Question about prop's and pitch! and HP, hull size, Load etc

[COLD]

I see pics. captioned scarry fast and pics stating GPS gave up at 99 mph' While a light boat with tons of HP may still do dry ground and still do 100 MPH! What is the best way to achive your performance objectives, while meeting good cruise fuel flow figures at "normal" cruise speeds and be able to impress the crap out of your passengers without seriously endangering thier life. Gets back to that liability stuff you were talking about. Most of the pics I see arn't fast but I have that speed thing in my brain so to protect myself, family and friends I need to set design limits!

 

[blackpowderscout]

When you are sitting 7 or 8 ft up off the water with a few pieces of metal between you and the water, it doesn't take much to impress your passengers

 

[Anonymous]

Cold, you're gonna want to build your boat tough enough to handle rocky rivers and runnin on ice an snow. That adds weight. If you do that, you're not gonna be overpowered unless you start thinkin about much bigger engines than I've heard you talk about recently.

That, and experience, will be your safety factor.

BF

 

[cntry141iq]

Hey COLD that picture "scary fast" is an illusion .. he wasn't going nearly that fast it is a camera trick. I am not putting his boat down at all I am just letting you know things usually are not that blurry. I din't quite get it right but then I am just learning this new camera.

 

[Davie GSO480]

Cold..It depends on where you are running, the water depth, and turaine. Never place your passengers at risk, so keep you speed to 30 or so, airboat aint got no brake-
As your pushing air out the back making thrust, the boat is pushing back. Weight is a hudge factor, as is drag. Your bottom, cage design, etc all woks against the motor. The modern composite Propellers are all very good, and a big thrust improvement over wood, but depending on your boat, some work better in certin applications.
Make sure youve got lots of seat time in your boat, before you hammer the loud petal.

 

[Waterthunder]

I swear Country I was going to post that wasn’t right but I didn’t want to tick somebody off. I guessed it right because both the boat and background are blurred if the boat was clear then you could tell the camera was moving with the boat. Or if the boat was blurred and the background was clear. Man I wish I posted that but I was concerned about ruffling feathers.

 

[cntry141iq]

LOL yeah thunder it was a little bit of both. I was tracking the boat with the camera but the shutter speed was a little too slow or else I stopped tracking a little too soon. Notice the reflection of the boat in the water is all most clear. I will get it down that was my first attempt at it.

 

[Anonymous]

What is the best way to achive your performance objectives, while meeting good cruise fuel flow figures at "normal" cruise speeds and be able to impress the crap out of your passengers without seriously endangering thier life.

Have two boats is one way :lol:

 

[marshmaster pat]

If you are wanting to just impress passengers, then Palm Beach style high rigging will typically do it by itself. Having their rear ends sitting 5 or 7 feet above the water will have their eyes open and add 25 to 35 mph and most have death grips. I think black powder scout was right.

For a boat with very limited passengers, a long belt rotator with a 454 on the floor of a 8 foot wide hull for stability and run the rigging up 8 to 9 feet for two passengers. View would be excellent. Boat probably handle like crude.

 

[Anonymous]

Pat, I was with you with the 454 down in the belly of the boat ... but medium height rigging, and then Let the Hosses Run !!

K.