Propeller Repair network: Benchmark Propellers 8 Meadow Park Road, Unit 1 Plymouth, MA, 02362 Bob Cronin Ph: 508 732 0073 Fax: 508 732 9262 bob@benchmarkpropellers.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Bob Cronin Big Rock Propellers 410 Arendell St Morehead City, NC, 28557 Tom Smith Ph: 252 222 3618 Fax: 252 222 3619 tsmith@coastalnet.com Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: Tom Smith Black Dog Propellers  212 Log Canoe Circle Stevensville, MD, 21666 Steve King Toll Free: 888 558 0921 Ph: 410 604 2861 Fax: 410 604 2863 bdp@dmv.com Prop Scan Inspection Systems: 6 Model: 5 x RTPB-5-1.5, 1 x RBSMA-5-2 Certified Technician: Steve King, Gene Thomas, Tim Murray Blue Water Propellers, Inc. 445 Tresca Road, Suite. 206 Jacksonville, FL, 32225 Mark Sage Toll Free: 877 404 7767 Ph: 904 338 9870 Fax: 904 338 9871 mark@bluewaterpropellers.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Mark Sage Canaveral Propellers 750 B Mullet Drive Port Canaveral, FL, 32920 Scott Ohman Ph: 321 784 2890 Fax: 321 784 2891 Mobile: 321 508 9120 lsohman@aol.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Scott Ohman Caribbean Propellers Tardieu Marine 110 Western Main Road Chaguaramas, Trinidad and Tobago PJ Williams Ph: 868 634 3376 Fax: 868 634 3376 Mobile: 868 680 2421 admiral@opus.co.tt Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: PJ Williams Fox Propellers & Marine Technologies, Inc. 2625 6th Ave S, St Petersburg, FL, 33712 John Fox Toll Free: 888 321 8010 Ph: 727 321 8010 Fax: 727 321 2260 Mobile: 727 776 8134 foxprops@tampabay.rr.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: John Fox, Bryan Rumpf, Sheryl Rumpf General Propeller Co. Inc. 1415 9th Avenue Bradenton, FL, 34208-2290 Paul Fox Toll Free: 800 282 3181 Ph: 941 748 1527 Fax: 941 747 6536 joelk@gpcprop.com Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: Joel Kmetz, Paul Fox, Jeff Stephens, Josh Castano Holland Propellers 11867 Greenway Drive Holland, MI, 49424 Mitch Iwan Ph: 616 355 2900 Fax: 616 355 7875 Mobile: 616 218 3378 HollandPropeller@aol.com Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: Mitch Iwan Intercoastal Propellers 159 Parkway South, Gulf Shores, AL, 36542 Tyler Dahlgren Toll Free: 888 390 PROP (7767) Ph: 251 968 PROP (7767) Fax: 251 968 7051 tyler@intercoastalprop.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Tyler Dahlgren Koala Propellers Av. Intercomunal Turmero - Maracaycalle Las Industrias #21 Maracay edo. Aragua., 2342 Venezuela John Ellis Ph: 58 243 269 4009 Fax: 58 243 269 5534 koalaprops@cantv.net Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: John Ellis North Coast Prop Tech Inc. 2401 Sawmill Parkway, Suite 1 Huron, OH, 44839 Tom Wood Ph: 419 433 9550 Fax: 419 433 8350 twood@northcoastproptech.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Tom Wood Ocean Props 307 Oliphant Lane, #17 Middletown, RI, 02842 Mike McMillin Toll Free: 888 430 7767 Ph: 401 848 7877 Fax: 401 848 7964 oprops@rcn.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Mike McMillin, Smidgie Reid Palmetto Props, LLC 4893-C Savannah Highway Ravenel, SC, 29470 Nelson DuRant Toll Free: 888 699 1250 Ph: 843 889 9212 Fax: 843 889 3672 PalmettoProp@msn.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Nelson DuRant, Suzi DuRant Pitch Perfect Propellers 166 Ludlow Street Stamford, CT, 06902 Chuck Gray Toll Free: 1800 353 4565 Ph: 203 653 1443 Fax: 203 653 1442 info@pitchperfectprops.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Chuck Gray Precision Prop Technology, Inc. 3005 S.W. 2nd Avenue, # 103 Ft. Lauderdale, FL, 33315 Mark Tomlinson Toll Free: 888 900 7767 Ph: 954 763 8883 Fax: 954 763 8884 repairprop@aol.com Prop Scan Inspection Systems: 3 Model: 3 x RTPB-5-1.5 Certified Technician: Mark Tomlinson Propeller Solutions, Inc. 2775 Kurtz St, Suite 10 San Diego, CA, 92110 Mark Shotton Toll Free: 800 735 0128 Ph: 619 688 1965 Fax: 619 688 1865 mark@propellersolutions.com Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: Mark Shotton Propulsion Engineering  5638 S. Central Avenue Chicago, IL, 60638-3708 Jerry Gravesen Toll Free: 800 339 7767 Ph: 773 581 6266 Fax: 773 581 6271 propulsionengineering@comcast.net Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: Jerry Gravesen, Kathy Gravesen, Wally Knych, Jim Jaterka The Propeller Works 9333 SE Alansa Drive Clackamas, OR, 97015 Jim Piestrak Ph: 503 657 7673 Fax: 503 657 7021 jimpiestrak@hotmail.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Jim Piestrak Velocity Propeller Shop  730 Avenue 65th Infanteria San Juan, 00924 Puerto Rico Michael Laporte Adams Ph: 787 765 8281 Fax: 787 765 4697 info@velocitypropeller.com Prop Scan Inspection Systems: 1 Model: RTPB-5-1.5 Certified Technician: Michael Laporte Adams, Pablo Sato Wildcat Propellers 3932 Holland Boulevard Chesapeake, VA, 23323 Larry Carlson Toll Free: 888 942 4260 Ph: 757 485 4260 Fax: 757 485 7839 wildcat@wildcatprops.com Prop Scan Inspection Systems: 3 Model: 2 x RTPB-5-1.5 & 1 x RTWM-5-3 Certified Technician: Larry Carlson, Yaroslav Ksenzhyk, Troy Erb Wolverine Propeller L.L.C. 1864 Southfield Road Lincoln Park, MI, 48146 Ron Jacobs Toll Free: 866 PROPGUY (866 776 7489) Ph: 313 383 0020 or 313 383 0195 Fax: 313 383 0542 rjacobs@gatecom.com Prop Scan Inspection Systems: 2 Model: 2 x RTPB-5-1.5 Certified Technician: Ronald Jacobs, Sam DeLa Garza

Props come in a variety of configurations known as flat pitch, regressive pitch and progressive pitch. Props with a flat or straight pitch have the same pitch on the leading edge as on the trailing edge and are usually considered the fastest. Props with regressive pitch are somewhat rarer because they have a higher pitch on the leading edge than on the trailing edge, this configuration utilizes the higher pitch to create drag to enhance the hole shot. Props with a progressive pitch are the most common and are the best for overall performance, these have a lower pitch on the leading edge for hole shot purposes and a higher pitch on the trailing edge for speed. These props are generally stamped with a median number, an example being a prop stamped 23 pitch will more likely read 21 to 25 pitch under the cup when measured on a Prop Scan.

Rake of the blades is the next consideration, a low rake prop has the most power and a high rake has the most speed and lift. Rake is the angle of the blade in relation to the hub, 0 rake being 90 degrees. The better running props are usually in the 20 through 30 degree rake angles.

Cup added to a prop blade controls what the prop does for the boat. Cup on the trailing edge controls stern lift and aids to some degree hole shot. Cup on the blade tips controls bow lift and speed. Cup is not a generic item, it has to be designed to the application and what works for boat and motor X will not necessarily work for boat and motor Y.

Selecting which combinations of the above that will work the best for your application is usually best left up to someone who has a good working knowledge and a lot of experience in the field, A Prop Scan certified technician can taylor the right prop for you.

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