SW is RW plus the product of weight and balance. SW = RW + (m*r^2.) The farther from the COM you place weight the greater the change in balance. The more you spread the weight out on the longitudinal axis the greater the inertia (RW & SW.)
SW is the inertia of a racket from the 10 cm axis that passes through the Center of Mass (COM.). Inertia is the inertia of a physical object at the COM aka RW. You can use the parallel axis theorem to calculate the inertia of a physical object anywhere on a parallel axis that passes through the COM. SW is technically termed a secondary moment of inertia (SMOI) and RW (MOI) is the physical racket’s moment of inertia.Is it the "product" of weight and balance, or the "sum"? And is there actually a way to calculate it from weight and balance? I thought SW had more nuance to it.
Yes, you can use a torsional pendulum to determine the racket‘s inertia, MOI, or RW (whatever you want to call it. From there you can use the parallel axis theorem to determine the SW.is there actually a way to calculate it from weight and balance
hmmm, so tail weighting, at the trap door specifically, will only have an impact on balance and static weight,
but it will NOT have an impact on swing weight, plow/stability?
In regards to plow/stability, a higher static weight should provide you with that
Unstrung customs has photos of their process and they usually have it around the handle at the very top. They also use the wider strips of lead for the handle.When putting lead tape at the handle, does it matter if it is put around the handle at the bottom vs along the handle straight on?
That is NOT CORRECT. Inertia is additive just like weight the more you add the more you have. If your racket weighs 325 g and you add 5 g you end up with 330 g.hmmm, so tail weighting, at the trap door specifically, will only have an impact on balance and static weight,
but it will NOT have an impact on swing weight, plow/stability?
That is NOT CORRECT. Inertia is additive just like weight the more you add the more you have. If your racket weighs 325 g and you add 5 g you end up with 330 g.
If you add 5 g of mass at 10 cm from the SW axis (butt of racket) you add 0.5 points to the SW. As a matter of fact if you add 5 g at 10 cm above the SW axis the SW change is the same as at the butt (I = mr^2) it does not matter if you add weight above or below the 10 cm axis. If you add 5 g of weight at the 10 cm SW axis you will have no change In SW. The longer along the handle you spread the weight (centered on the 10 cm axis) the greater the change.