Wednesday, January27, 2021
Privacy Policy

Technical Data

Screws and bolts

  • Wood Screws Tables with key dimensions for many styles of screws
  • Pilot Holes Wood screws Pilot Hole Size with discussion on which numbers to believe
  • Machine screws Tables of dimensions includeing min and max for machine screws
  • Screw Heads Dimensions for various screw head types
  • Screw Length tolerences for various screw types
  • Nuts Dimensions on nuts of all types
  • Washers Dimensions of 11 different styles of washers
  • Hex Bolts American/United National Threads dimensions from size 0 to 1 inch
  • Torque Torque specifications for non ferrous bolts with recomendations for different thread pitches
  • Torque Chart covers torque recomendations for most bolt types. A little harder to read than the one above but it covers more bolt types.
  • Wrench Size Comparison of US, Metric, and Whitworth wrenches

Taps, Threads, Pipe, and Drills



  • Sheet metal Thickness guide for Gauge 7-31 for Steel,Carbon Steel,Galvanized,Stainless, and Aluminum
  • Yield Strength Strength of Stainless, Bronze, and Aluminum
  • Corrosion Control Galvanic Tables and some notes on corrosion. See also article on bonding
  • Stainless Steel All your frequently asked questions (FAQ) answered regarding Stainless Steel

Engines and Manuals

  • Over 400 Manuals, listed alphabetically covering a variety of marine equipment, engines, radios, rafts, pumps, auot pilots, and more.
  • Voltage Regularoy Switching from old Leece-Neville Regulator to a solid state 3 terminal Voltage Regularoy
  • Marvel Schebuler Updraft Carburetor Manual (hard to find vary popular page)
  • Gray Marine 4 and 6 Cyclinder Gasoline Engine Manual (1938-1958 Models)

Line and rigging



  • LP Calculator Calculate the LP and % of a sail given the 2 sides and J
  • Sail Area calculator based on I J or J and Luff as well as sail size (%).
  • Dimensions and sail area calculations for thousands of boats. Click through to the boat specific page. Data is shown from several leading sources.


L-36 Specific

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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.