Joe's rule of four gets you to : 400 RPM * 4 " diam. * 3.14 * 60 = 301.440 inches per hour or 4.75 MpH With a loss on the motors , this should get you to about 4 miles per hour.
400 RPM * 5 " diam. with the tracks on * 3.14 * 60 = 376.800 inches per hour : 63.360 = 5.94 MpH Chrys ----- Original Message ----- From: "Chrysanthos Kanellopoulos" <[email protected]> To: <[email protected]> Sent: Tuesday, March 03, 2009 7:05 AM Subject: [TANKS] Re: 3 stage transmission > > Try: > RPM * diameter in meters of drive wheel with the added thickness of the > track on * 3.14 * 60 min. = speed as meters per hour. > > YOu practically unfold the circumference of the drive wheel that many RPM > times for an hour and get the distance. > > If teh diameter is 113 mms., this dimension in meters is 0.113. > There 's some loss with teh motors loaded but that depends on the gears > It applies for wheeled vehicles too. > Chrys. > > > > > > > __________ NOD32 3434 (20080911) Information __________ > > This message was checked by NOD32 antivirus system. > http://www.eset.com > > --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
