Divide your fully loaded tank weight by the number of road wheels you have and that's what each spring needs to be holding up. Start searching on McMaster.com for extension springs in the length required and look for a "spring rate" maybe a third higher than your figure and that should give you something to start with. Some put heaver springs on the front and rear roadwheels as these see the most abuse. Also, if your tank is not balanced to the center point of your ground contact you will need to adjust spring rates to compensate so your tank "floats level". Some build-in an ability to adjust spring mounting for this very reason. Of course, this can be mitigated with a TyngTech captured suspension:
http://www.rctankcombat.com/archive/2007-02/msg00121.html Steve Tyng Warning: There's nothing scientific in my advise, just a gut feeling backed by a modicum of experience. On Jan 18, 8:48 am, Enzo Salas <[email protected]> wrote: > Hi, > > My Tank is about 120 lbs and I'm having problems with my tension > springs, they are too weak for the weight of my batteries. My > suspension system is exactly:http://rctankcombat.com/tanks/ > T014/03Suspension-large.jpg > > What diameter and material should I use for a stronger tension spring? > > Any form of help will be greatly appreciated > z0 -- 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
