@@braindead_entertainment yes we do, but there's not a lot we can do to them because they are very brittle, and tend to crack, most of the time it tends to be adding cup, cutting down diameter, resharpening, thank you, next time I get one in I will make a video
@@braindead_entertainment thank you, as do I, the racing boat people are far and few between, we did work on a race winner this past year, 120mph. Not a record, but he wone the race, thank you for inspiring me to tell more of the story
@@jevers123 that's awesome! Must have made you feel good seeing it perform.. I never realized how much very small differences could make with a prop. Like a different totally different boat with 1 degree of pitch
@braindead_entertainment , unfortunately I never get to see them perform, most racing boats are very far away from my earea, , Manatee speed limits in strictly imposed within a 200 mi radius of where I live , the closest super go fast are Miami, and Georgia, , our fastest local class is, 75 to 80 mph , loop racing, I think there are some local boat races coming up, thank you for the encouragement, I've always wanted to work more on the racing aspect of my day job, bring up my day job for 26 years, doing racing boats, has never made us money, just some bragging rights, but i can retire with that
I have a SS Stiletto in Spanish Fort, Al. 15 x 15, pressed hub, cupped, rake, vented. I need to change pitch to 13, and diameter could decrease - from no change to an inch would be ok. I don't think it make a lot of difference. Where are you, what would you charge, would you be interested in doing it, and when could you do it?
yes , ....and all pitch canges work in both direction , when it comes to stainless stele props one can have 2" added or 2" reduced but no more than that after 3" they start to lose structural integrity .. hope that helps!
@@gbass7328 the same goes for aluminum 2 inches of pitch up or two inches of pittstown maximum, great thing about aluminum propellers is, it's way cheaper to change the pitch, AKA they don't need oxygen and acetylene to heat them up, we generally change the pitch in those cold and then true them up on the table, hope that helps
@@Xarza17 I'm not sure how to answer this, for me it's 3 dementional art , the anvil is the equivalent of the wood frame that supports a canvas, the boat propeller is the canvas and the hammer is the paint brush , the paint is All the tables and gauges and tracking equipment, and that gear you will have to search for on your own, much like the show "Forged in fire" I'm only allowed to show X amount
@@jevers123 I saw in the video that you straightened the propeller geometry on an anvil. After that, you took a caliper and measured the propeller and then straightened it after measuring. I'm trying to understand, is straightening on an anvil not enough to restore the geometry?
@@Xarza17 yeah the anvil is for fine shaping, the blades tend to get little warps here and there from the heat process, some minor straightening is needed, the pitch block is for twisting the whole blade at once, and the calipers are used to make sure we get every blade into position perfectly, if we don't the prop will vibrate , no matter how good it gets balanced in the end process hope that helps, and if you're looking to do aluminum you should be able to hit them out on a pitch block without heating
@@jevers123 I don't have a pitch block. I want to buy one. And I need to know if the propeller is machined on the pitch block or if I need to measure and straighten the propeller. I work with aluminum propellers.
@@Xarza17 this is a really tough one to answer, if you are a new business start up, you should consult with the propeller manufacturer, a pitch block needs to be secured to a mount base per manufacturing repair specs , aka a jig, thank you for the questions, it's the favorite part of my day job
Have you done any custom grind race props? Would be interesting to see how they are done
@@braindead_entertainment yes we do, but there's not a lot we can do to them because they are very brittle, and tend to crack, most of the time it tends to be adding cup, cutting down diameter, resharpening, thank you, next time I get one in I will make a video
@jevers123 awesome, look forward to seeing it!
@@braindead_entertainment thank you, as do I, the racing boat people are far and few between, we did work on a race winner this past year, 120mph. Not a record, but he wone the race, thank you for inspiring me to tell more of the story
@@jevers123 that's awesome! Must have made you feel good seeing it perform.. I never realized how much very small differences could make with a prop. Like a different totally different boat with 1 degree of pitch
@braindead_entertainment , unfortunately I never get to see them perform, most racing boats are very far away from my earea, , Manatee speed limits in strictly imposed within a 200 mi radius of where I live , the closest super go fast are Miami, and Georgia, , our fastest local class is, 75 to 80 mph , loop racing, I think there are some local boat races coming up, thank you for the encouragement, I've always wanted to work more on the racing aspect of my day job, bring up my day job for 26 years, doing racing boats, has never made us money, just some bragging rights, but i can retire with that
I have a SS Stiletto in Spanish Fort, Al. 15 x 15, pressed hub, cupped, rake, vented. I need to change pitch to 13, and diameter could decrease - from no change to an inch would be ok. I don't think it make a lot of difference. Where are you, what would you charge, would you be interested in doing it, and when could you do it?
Can you take a 23 pitch scorpion and make it a 21pitch? What would it coast and whats your address.
Отличная работа.
is it possible to add pitch as well?
yes , ....and all pitch canges work in both direction , when it comes to stainless stele props one can have 2" added or 2" reduced but no more than that after 3" they start to lose structural integrity .. hope that helps!
@@jevers123 How about aluminum?
@@gbass7328 the same goes for aluminum 2 inches of pitch up or two inches of pittstown maximum, great thing about aluminum propellers is, it's way cheaper to change the pitch, AKA they don't need oxygen and acetylene to heat them up, we generally change the pitch in those cold and then true them up on the table, hope that helps
Doesn't machining on an anvil solve geometry problems?
@@Xarza17 I'm not sure how to answer this, for me it's 3 dementional art , the anvil is the equivalent of the wood frame that supports a canvas, the boat propeller is the canvas and the hammer is the paint brush , the paint is All the tables and gauges and tracking equipment, and that gear you will have to search for on your own, much like the show "Forged in fire" I'm only allowed to show X amount
@@jevers123 I saw in the video that you straightened the propeller geometry on an anvil. After that, you took a caliper and measured the propeller and then straightened it after measuring. I'm trying to understand, is straightening on an anvil not enough to restore the geometry?
@@Xarza17 yeah the anvil is for fine shaping, the blades tend to get little warps here and there from the heat process, some minor straightening is needed, the pitch block is for twisting the whole blade at once, and the calipers are used to make sure we get every blade into position perfectly, if we don't the prop will vibrate , no matter how good it gets balanced in the end process hope that helps, and if you're looking to do aluminum you should be able to hit them out on a pitch block without heating
Great work and video. Name of prop shop you’re at?
Blair Propeller and marine Stuart FL 34997
@@jevers123 👍🏻
I am repairing propellers and I need information
@@Xarza17 what information would you like to know
@@jevers123 I don't have a pitch block. I want to buy one. And I need to know if the propeller is machined on the pitch block or if I need to measure and straighten the propeller. I work with aluminum propellers.
@@Xarza17 this is a really tough one to answer, if you are a new business start up, you should consult with the propeller manufacturer, a pitch block needs to be secured to a mount base per manufacturing repair specs , aka a jig, thank you for the questions, it's the favorite part of my day job