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
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?
Отличная работа.
Can you take a 23 pitch scorpion and make it a 21pitch? What would it coast and whats your address.
Great work and video. Name of prop shop you’re at?
Blair Propeller and marine Stuart FL 34997
@@jevers123 👍🏻
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
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