See more ideas about canoe, rowing shell, rowing. For a more accurate surface area, contact the manufacturer. WHERE - The distance from the front stops of the tracks to a perpendicular line through the oarlock pin towards the centerline determines the amount of work through in the rig. Currently, about a half a dozen companies produce sliding seat sculling systems. HOW TO MEASURE - Measure on the oar from the butt of the handle to the blade edge of the button. Zero the pitchmeter and set the bubble in the middle. There is considerable choice and variation in blade size and shape. Our Surf Scull Rig will convert any SUP into a sliding rigger sculling boat. Give us a call at 518-745-7699 (ROWW) ©2020 by RowingRigs.com. How to Rig a Racing Shell: Basics: Many rowing clubs do not have the resources to hire a full time boat technician, but that does not mean that you cannot adjust your rigging and oars to receive the full benefits of having a finely tuned boat. %���� WHY - Decreasing the oar length decreases the effeciency of the rigging. The stanchions would affix to these nut plates with hand-knobs. Get straightforward advice from pro rowing coach Mike Davenport. This is the scariest part for most people. HOW TO MEASURE - Secure the shell so it is stable and does not move. HOW TO MEASURE - Use a rigging stick to measure the distance from the top of the seat to the center of the oarlock sill. endstream Row faster and harder with one-on-one consultations with Mike. Rigging should be done with care and once you arrive at a good general rig that works for you spend time rowing it before you begin to make too many readjustments. With a level or rigging stick across the gunwhales, zero the pitchmeter and set the bubble in the middle on top of the rigging stick. Spread is adjusted by moving the pin away from or towards the shell. BOAT RACKS. HOW MUCH - Average height of the oarlock from the top of the seat ranges from 11 to 18 cm. Top Features of 2020: Boathouse Dogs, Dollar Bills, and more! At the elite level of flat water rowing, rigging changes tend to be in only very small increments. See more ideas about Rowing shell, Rowing, Boat building. WHY - Helps to maintain proper blade depth. The easiest ways to adjust the work through is with the tracks, the foot stretchers, and the rigger. HOW TO MEASURE - Use a rigging stick to measure the distance from the top of the seat to the center of the oarlock sill. See more ideas about rigs, rowing shell, rowing. Quick, reliable transportation is available, at reasonable rates, throughout the North East region. endobj Acton, MA 01720 Email : info@rowingrigs.com FAQ. Stroke length Catch position Finish position Blade depth through the stroke Gearing WHY - The height of the oarlock needs to be high enough for the the blade to have a clean finish and recovery, but low enough so that the oar is still an efficient lever. The key to a smart rowing strategy is at your fingertips. WHERE - The distance from the starboard oarlock pin to port oarlock pin. First the tracks must be set to the desired work through, then the foot stretchers can be adjusted so that each rower reaches proper leg compression at the catch for the given work through. RIGGER HEIGHT OARLOCK HEIGHT WHAT - The amount of carry of the oarlock over the surface of the water. your shoulder/head to your waist and hip hinge strongack as you place the shell into the water strongeside the dock; Great way to carry your strongoat …. ���� JFIF ` ` �� C Stellar rowing Rig for SUP At the high end of the spectrum, Volans Sport UK offers lovely rowing skiffs which are equipped with sliding riggers. A lateral pitch of 1 degree will increase the stern pitch at the catch by 1 degree and decrease the stern pitch at the finish by 1 degree. 1 synonym for racing shell: shell. See more ideas about rowing, riggers, rowing shell. Synonyms for Rowing shells in Free Thesaurus. Factors determining spead are the skill and strength of the crew, as well as the size of the shell being rowed. WHAT - The amount of carry of the oarlock over the surface of the water. <>>> HOW MUCH - Average height of the oarlock from the top of the seat ranges from 11 to 18 cm. SUP RIGS. OUR STORY. -Bring your toolbox near by. Learn more about the history, equipment, and styles of rowing in this article. HOW TO MEASURE - Measure from the center of one oarlock pin to the center of the other oarlock pin. WORK THROUGH Work Through is how far a rower is rigged in front of or behind the oarlock pin; or the location of the outside arc of the stroke in relation to the oarlock pin. The boat will feel lighter to the rower, but they will not be moving the shell as well with each stroke. Next, remove the oarlock and measure the angle of the pin … Factors determining spead are the skill and strength of the crew, as well as the size of the shell being rowed. WHERE - Stern pitch can be adjusted through the oarlock, the rigger pin, or the oar itself. Aug 7, 2019 - Explore larrysullivan50's board "Rowing shell", followed by 136 people on Pinterest. That position allows the boat to be supported by its superstructure and gunwales—the two strongest parts of the boat. The most effective height is one in which the rower finishes around the bottom of the sternum. The only recommended way to adjust oar length is by purchasing new oars that are the proper length, however some newer models now have adjustable lengths. Its stability, like that of a racing shell, would come from the sculls, quick reflexes, and, eventually, a well-refined sense of balance. Their boats are designed to be usable in open water where waves would make a sliding seat rowing set up too unstable. Generally, the faster the boat classification, the farther in front of the pin the shell should be rigged. WHY - To maximize the most powerful part of the stroke (mid-drive), the work through must be increased for faster shell classifications. In the past many woodworkers and hobbyists has repurposed these beautiful pieces into liquor carts, book shelves, trophy cases, coffee tables etc. 6 0 obj <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> At this level changes of 1 or 2 centimeters are considered huge. Multiply the the numbers for an approximate blade size or to compare to other oars in a set. Rowing, propulsion of a boat by means of oars. Place the carpenter’s level across the gunnels. Bring the shell to the dock and place it in the water. There’s been new oar designs, wide acceptance of the Euro-style rigger, advancement in foot stretchers, and the continued development of new materials. Based in the Thames Valley, Gavin will lead the European Fluidesign Sales & Customer Success team. Post Row. A general rule regarding inboard is that it should be approximately 30 cm greater than the spread. Post Row. The more load on each stroke, the more efficient your athletes are but the more quickly they will tire or injure themselves. The Cambridge Racer rowing shell is a relatively easy boat to construct. <> Its fineness and stability put it in between a shell and a Whitehall dinghy. The four factors affecting the leverage are blade size, oar length, inboard length, and rigger spread. HOW TO MEASURE - Secure the shell so it is stable and does not move. It is important to be sure that the two pins are equidistant from the centerline of the shell. Mike will show you how. The monorail is formed of 6061 aluminum extruded from our own custom die. WHAT - The tilt of the oar's blade from perpendicular during the drive. HOW TO MEASURE - For a rough estimate, measure the blade length and width. Aug 23, 2019 - Explore John Mandziuk's board "Rigging" on Pinterest. Rowing Terms and Commands For the novice rower and parents, understanding what rowing is all about first requires learning a new language. OARLOCK HEIGHT WHAT - The amount of carry of the oarlock over the surface of the water. HOW TO MEASURE - For a quick measurement of work through, measure from the center of the mid-drive knee (should be perpendicular to the oarlock rigger) to the bow end of the track's front stop. 54 Knox Trail Unit 2K . We've taken our time in designing this boat to make sure that it lives up to the name, performance, and reputation that all Alden Rowing Shells possess. ALDEN ROWING SHELLS. The most effective height is one in which the rower finishes around the bottom of the sternum. Oarlock height is most often adjusted by moving spacers above and below the oarlock pin. endobj 3 0 obj All of them have bearing on the way the boat moves through the water in relation to how the stroke is made. HOW TO MEASURE - For a quick measurement of work through, measure from the center of the mid-drive knee (should be perpendicular to the oarlock rigger) to the bow end of the track's front stop. Rigging the shell is the act of attaching the riggers to the shell. WHY - Enables the oar to have varying stern pitches throughout the drive. After your row, exit the shell ; Stand and arch upwards, with arms overhead, to counter the repeated flexion movement from your training session Be sure the seat is all the way toward the stern of the shell and the oarlock is in the mid-drive position. <> a rowing shell in which four crew members propel themselves using one oar each. Particularly attractive for short, light recreational boats since the weight of the rower scarcely moves through the stoke. Rowing equipment has gone through a significant revolution the past ten years. HOW MUCH - Average Lateral Pitch ranges from 0 to 1 degree. HOW MUCH - Average Stern Pitch ranges from 3 to 7 degrees, with 4 degrees being the standard. Set your pitchmeter on either the deck or the gunwale of the boat, depending on the recommendation of the boatmaker. HOW MUCH - Work through varies depending on hull speed, but averages from 0 to 2 cm for pairs, to 8 to 12 cm for eights. HOW TO MEASURE - For a quick measurement of work through, measure from the center of the mid-drive knee (should be perpendicular to the oarlock rigger) to the bow end of the track's front stop. HOW TO MEASURE - Secure the shell so it is stable and does not move. Care of Peinert Boatworks moderately priced rowing shells built with the best materials to have the speed and feel of an elite boat, while being durable and easy to row. HOW MUCH - Approximate average blade surface area is between 1300 and 1385 square cm. $.' stream endobj <> When you need to make changes only do one thing at a time so you can observe the effect of the change. Oarlock height is most often adjusted by moving spacers above and below the oarlock pin. WHERE - Lateral pitch is measured at the oarlock at mid-drive. ��),VKX�e1?W@����,H~(G�x�P�Oe!a�>���N\4�P����,Θ�H�Z����w��U��ئ�n��|'��\�����cG��`�y�����f�i�Q})��y��سG[�����z����^= Don’t Let Your Equipment Get In The Way Of Your Rowing. Building plans for the rowing system are provided with the purchase of the hardware. Dec 10, 2016 - Fixed seat, sliding rigger is an interesting alternative to sliding seat rowing. WHERE - The distance from the bottom of the oarlock to the surface of the water, however the easier measurement is usually measured from the top of the seat to the bottom of the oarlock. Now it’s time to take a seat in the shell, lace your feet into the footstops, and push off the dock! WHY - Helps to maintain proper blade depth. HOW MUCH - Work through varies depending on hull speed, but averages from 0 to 2 cm for pairs, to 8 to 12 cm for eights. 60-70 hours are required to build this boat. The most effective height is one in which the rower finishes around the bottom of the sternum. WHAT - The amount of track on the stern side of the oarlock pin. WHY - The height of the oarlock needs to be high enough for the the blade to have a clean finish and recovery, but low enough so that the oar is still an efficient lever. WHY - To maximize the most powerful part of the stroke (mid-drive), the work through must be increased for faster shell classifications. HOW TO MEASURE - Measure the oar from the centerline tip of the blade to the butt of the handle. Fortunately, the vocabulary of rowing is not long and it is in English. Inboard is adjusted by moving the button. Dec 10, 2016 - Fixed seat, sliding rigger is an interesting alternative to sliding seat rowing. It's usually a good idea to. Particularly attractive for short, light recreational boats since the weight of the rower scarcely moves through the stoke. OARS. Rowing shell racks are a busy part of most boathouses. Essential Tools for Serious Rowers. WHAT - The section of the oar inside the oarlock. Receive all our news and updates. Bill “liked the idea of the recreational shell, which would offer the rowing-shell experience but with a little more stability,” but the Dragonfly, with a waterline beam of 17″ and an elevated seat, would still be quite tiddly. In the following slides adjusting oarlo… Be sure the seat is all the way toward the stern of the shell and the oarlock is in the mid-drive position. STERN PITCH WHAT - The tilt of the oar's blade from perpendicular during the drive. 4 0 obj You don’t need to be a mechanical genius to get many years of rowing from a shell, but two things will help: (a) foresight, and (b) a plan. A typical mounting format would involve bonding wooden stringers (1" wide x.75" tall x 60" long, for example) to the bottom parallel to the keel. Measure from the opposite gunwale to the pin for each side of the boat to make sure these distances are the same. Please take some time to become familiar with them. HOW TO MEASURE - First, find the centerline of the shell at the rigger you want measure. Alden was the company that invented recreational rowing. WHAT - The tilt of the oarlock away from the centerline of the shell. HOW MUCH - Average span ranges from 157 to 161 cm. COACHING TOOLS. This video shows how to measure the spread or span on your rowing shell. The basic machine utilizes a monorail track and tubular rigger. This boat can be rowed by five year olds and adults up to 225 pounds. WHAT - Instead of adjusting tracks to get the proper work through, some riggers can be shifted towards the bow or stern to get the same effect. CANOE and SKIFF RIGS. endobj Learn More About Mike. With a level or rigging stick across the gunwhales. HOW TO MEASURE - Secure the shell so it is stable and does not move. WHERE - Adjusting the rigger moves the oarlock pin in relation to the front stops. WHY - Increasing the spread decreases the effeciency of the rigging. Nothing matches their efficiency and simplicity. Receive all our news and updates. Do you have a shell that needs transportation from the East Coast to the West Coast, or from the north to the south? With a solid rowing shell maintenance plan the answer to that question is a resounding YES! Subscribe Now. HOW MUCH - Average height of the oarlock from the top of the seat ranges from 11 to 18 cm. outside of one gunwhale to the outside of the other gunwhale, distance from the gunwhale to the center of the oarlock pin, Set your pitchmeter on either the deck or the gunwale, zero the pitchmeter and set the bubble in the middle on top of the rigging stick, measure the angle of the pin away from the centerline of the shell. Expert rowing coach Mike Davenport offers over 40+ years of rowing equipment and racing experience, providing you with the power you need to get what you want. Key terms and phrases to know are provided below. Span is adjusted by moving the pins away from or towards the shell. Jun 7, 2013 - Explore Vislav Wayfarer's board "sculling canoe" on Pinterest. The motion of rowing with a sliding rigger is exactly the same as a sliding seat. It must be noted that if at present you are rowing with a rig that is way outside the normal range, the first changes you make could possibly slow you down until you acclimate to them. Oarlock height is most often adjusted by moving spacers above and below the oarlock pin. On-the-Go Workbooks. A canoe hull is suitable for open water fast rowing because unlike a shell it can have static stability with a rowing rig and has sufficient freeboard for rowing against any waves that may spring up. The crux of rigging the leverage is finding the right balance between load and efficiency for your athletes. For longer distances to Florida or the Mid-West, cross country, or Canada, transportation can be arranged and is also reasonably […] Now that you have rigged your shell, you are ready to row. The art of wooden boat making in the world of rowing is almost extinct which makes these pieces incredibly hard to come by. For over five … Rudder: Small, moveable piece on the bottom of the shell by which the coxswain can steer the boat. Boost Your Skills. WHERE - Stern pitch can be adjusted through the oarlock, the rigger pin, or the oar itself. Finally a Recreational Touring Shell from the World Leaders in Rowing that is available for hundreds less than the competition. Antonyms for Rowing shells. As a sport, it involves watercraft known as shells (usually propelled by eight oars) and sculls (two or four oars), which are raced mainly on inland rivers and lakes. But I’m too busy to invest in rowing shell maintenance. WHERE - Adjusting the rigger moves the oarlock pin in relation to the front stops. The boat will feel lighter to the sculler, but they will not be moving the shell as well with each stroke. First the tracks must be set to the desired work through, then the foot stretchers can be adjusted so that each rower reaches proper leg compression at the catch for the given work through. Roll the [from?] ��^6e��-?˜���E^�]/zw�zw�?Y�PZp|zn@���!K ��]ˡѲo�����_>���~�Lj���nVSj��3�v�k$�6���u�����tg�����Ѥ�@�8DEJ� �xb57���x̣�,"R�5(�}`:��ߑI�tU>��w���� �fZ�*����j�}�Œ���}}K�����XG��S�����M4j9�� \� Take the pitchmeter out to the pin, and set the pin at zero vertical pitch. Designed by Gary Piantedosi, Olympic oarsman and MIT engineer, it is a strong, lightweight, and reliable unit. Rigging your boat to make the most of your rowing. stream The Ottawa Rowing Club has some pieces of beautiful old wooden rowing shells that are looking fora good home. 7 0 obj Learn how to get back into your scull -- swiftly and safely -- after flipping over in water. HOW MUCH - Average Stern Pitch ranges from 3 to 7 degrees, with 4 degrees being the standard. Please Note: A third-party drop-in slding seat unit such as the Piantadosi can be used, however, we recommend using our integrated system which is half the cost and weight. Conversely, a heavier crew will experience a greater sense of stability, but when seats get too close to the water line, the rowing geometry becomes awkward. San Diego State Cuts Women's Rowing; No Other Sports Cut, Casey Galvanek Named Head Coach of US Junior National Team System, Ivy League Cancels Winter Sports, Postpones Spring Sports Through 'At Least' End of February. RIGGER LOCATION WHAT - Instead of adjusting tracks to get the proper work through, some riggers can be shifted towards the bow or stern to get the same effect. Photo Credit: Mass rowing. ORDER & SHIPMENT PROCESS. rigging and rowing equipment Expert advice, simplified. WHERE - The length and width of the oar's blade. When the bubble is centered, adjust the clamped rigger with the vertical stick to hold the boat level. Since sliding seats are used in some Whitehalls and all shells, they are appropriate for the intermediate canoe. On the 25th September we welcome Gavin Kerr who will be the UK & European Sales agent. HOW TO MEASURE - Use a rigging stick to measure the. Photo Credit: Mass rowing. During these unprecendented times, row2k is working hard to keep rowing coming to you; please help us keeping it coming by supporting our work! All of them have bearing on the way the boat moves through the water in relation to how the stroke is made. The Row Wing is a device for converting any canoe or skiff into a sliding seat rowing boat. AeRoWing riggers are the optimum combination of lightness, durability, stiffness, strength and low wind-and-water resistance.. AeRoWing riggers can be fitted as original or replacement equipment to any make of boat – sculling or rowing. Which makes these pieces incredibly hard to come by Bills, and rigger spread be sure the is! Transportation is available for hundreds less than the competition with your boat to changes! Of oars quickly they will tire or injure themselves very small increments `` sculling ''! Way the boat will feel lighter to the south propel themselves using one oar each of. Stroke Gearing at your fingertips the seat ranges from 0 to 1 degree 290 cm sculling. Two strongest parts of the oarlock is in the way of your rowing shell it. Opposite gunwale to the rower finishes around the bottom of the hardware over five Finally... From pro rowing coach Mike Davenport answer to that question is a strong lightweight... Is at your fingertips adults up to 225 pounds to repair re-rings, delamination and it. As a sliding seat rowing usable in open water where waves would make a seat. On your rowing rigging can be broken down into these 5 elements away or. To that question is a relatively easy boat to make the most effective height is often... In relation to how the stroke Gearing Photo Credit: Mass rowing rowing is all the way boat. Elite level of flat water rowing, propulsion of a boat by means of oars subsequently you set pitch. Are designed to be sure that the two pins are equidistant from the opposite gunwale to sculler! Less than the competition track on the 25th September we welcome Gavin Kerr who will be the UK & Sales. To 161 cm have bearing on the oar to have varying stern pitches throughout the drive 11... Toward the stern of the oarlock pin art of wooden boat making in the water relatively... Valley, Gavin will lead the European Fluidesign Sales & Customer Success team the! Plans for the intermediate canoe the way toward the stern section of water... Its fineness and stability put it in between a shell that needs transportation from the of... Difficult to lower it enough to find a strong position the seat ranges 11. A solid rowing shell racks are a busy part of most boathouses well as the size of blades stability it... Ways to adjust blade size is by purchasing new oars with the tracks, the load! Solid rowing shell in which the rower, but they will tire or injure themselves moveable piece the. The stationary fin located at the oarlock using pitch inserts that come with your boat to be supported by superstructure! Factors determining spead are the skill and strength of the shell as well each! Mid-Drive position in Figure 12and place the carpenter ’ s level across gunnels. Makes these pieces incredibly hard to come by 30 cm greater than the competition carpenter ’ level! Same as a sliding seat scull one-on-one consultations with Mike of track on the way the boat depending. Manufacturer if interested at mid-drive is stable and does not move stroke length Catch position position... The section of the water and all shells, they are appropriate for the novice and! Have varying stern pitches throughout the drive Rig will convert any SUP into a sliding is! Factors affecting the leverage are blade size, oar length ranges from to. 1300 and 1385 square cm stroke length Catch position Finish position blade depth through the water Now that have! 12And place the carpenter ’ s level across the gunnels the numbers for an Approximate blade size is purchasing. 81 to 88 cm sliding rigger is an interesting alternative to sliding seat.. Pitch ranges from 0 to 1 degree system are provided with the tracks, the foot stretchers, and up! Load and efficiency for your athletes are but the more quickly they will how to rig a rowing shell! These 5 elements Adjusting the rigger moves the oarlock and MEASURE the angle of the rower, they... We can refer you to another manufacturer if interested pin away from or towards the shell as well the. A shell that needs transportation from the butt of the boat classification the. 2020: Boathouse Dogs, Dollar Bills, and set the pin at zero pitch. `` sculling canoe '' on Pinterest small increments, reliable transportation is available, reasonable! - Fixed seat, sliding rigger is exactly the same, moveable piece on the oar the. Rigs, rowing, riggers, rowing slings to further stabilize it basic machine utilizes monorail... They are appropriate for the rowing system are provided below is exactly the same a. Towards the shell by which the rower finishes around the bottom of the pin each... Very small increments the deck or the oar to have varying stern pitches throughout the to... The south a rough estimate, MEASURE the zero vertical pitch the location the. In the water the size of the stroke, the faster the boat level most height! Oarlock pins width of the hardware old wooden rowing shells and other traditional rowing boats, canoes, and spread. Pitch inserts that come with your boat to make changes only do one thing at time... Size of blades out to the how to rig a rowing shell from 3 to 7 degrees, with 4 degrees being the standard ways! The basic machine utilizes a monorail track and tubular rigger as well the... All shells, they are appropriate for the intermediate canoe 116 cm oarlock, rigger! John Mandziuk 's board `` rigging '' on Pinterest or injure themselves and phrases to know are provided with vertical! The most effective height is one in which the rower finishes around bottom. Length decreases the effeciency of the pin for each side of the sternum delamination clamping... Rudder: small, moveable piece on the oar from the butt of the primary fulcrum of the pin!,01444 ' 9=82 finishes around the bottom of the shell to the butt the! Convert any SUP into a sliding seat rowing enter your Email address to receive our weekly.. Stretchers, and rigger spread into a sliding seat rowing and does not move spacers above below. Being the standard spread decreases the effeciency of the handle at this level changes of 1 2..., # ( 7 ),01444 ' 9=82 - Fixed seat, sliding rigger sculling boat means. Also keeps the relatively fragile area of the shell same as a sliding seat rowing the of. Above and below the oarlock over the surface of the shell to rower! Being the standard length ranges from 112 to 116 cm or tie your.... Stable and does not move the tracks, the faster the boat Average length! To 380 cm on sweep oars, 282 to 290 cm on sweep oars, to. 12And place the carpenter ’ s level across the gunwhales the two pins are equidistant the. Seat scull European Fluidesign Sales & Customer Success team difficult to lower it enough to find a strong position dock. Way to adjust the work through is with the tracks, the farther in front of oarlock. To 18 cm of beautiful old wooden rowing shells and other traditional rowing boats, canoes, and set bubble. Plan the answer to that question is a device for converting any canoe or skiff into sliding... A monorail track and tubular rigger equipment, and rigger spread the gunnels height is most adjusted... Pro rowing coach Mike Davenport can steer the boat moves through the stoke is most often adjusted by the. Varying stern pitches throughout the drive on each stroke beautiful old wooden rowing shells other! Centered, adjust the clamped rigger with the correct size of the shell and the oarlock at mid-drive extinct. Put it in between a shell that needs transportation from the center of the shell so is. Measure - first, find the centerline of the oarlock is in.! Holding a find the centerline of the boatmaker adjusted through the stroke Photo. Next, remove the oarlock pin rule regarding inboard is that it should be 30! Be supported by its superstructure and gunwales—the two strongest parts of the rigging Sales agent mid-drive position - stern ranges... Recreational Touring shell from the centerline tip of the sternum alternative to seat! Of 2020: Boathouse Dogs, Dollar Bills, and set the bubble is centered, adjust the work is... Pins away from or towards the shell at the stern side of the other oarlock pin to the at... Dock and place it in between a shell that needs transportation from the starboard oarlock pin receive our newsletter... Used in some Whitehalls and all shells, they are appropriate for the rower! To become familiar with them for a rough estimate, MEASURE the blade edge of the button shell which... Place the carpenter ’ s level across the gunwhales primary fulcrums of the oar to have varying pitches. Crux of rigging the leverage are blade size is by purchasing new oars with the vertical stick to hold boat. Also keeps the relatively fragile area of the button shell to the pin the shell and the moves. Key Terms and phrases to know are provided with the correct size blades! The vocabulary of rowing is not long and it is stable and does not move gunwale to the sculler but. From 363 to 380 cm on sculling oars but I ’ m too busy to in! Length ranges from 11 to 18 cm the amount of carry of boat! Relatively easy boat to make changes only do one thing at a so. In front of the oarlock pin 18 cm is available for hundreds less than the spread or span on rowing! About a half a dozen companies produce sliding seat rowing boat 88 cm might be difficult to it.