Also, some calculations to see just what kind of RPMs we can expect in the system. **Please take a look and tell me if these look right to you. I’m dense when it comes to this stuff.**

35mm Linear Length

1 frame = 18.6mm

24 frames = 446.4mm/s

RPM Calculations for Standard Reel & Split Reel Cores

STANDARD REEL

diameter of reel @ base: 107.95mm

circumference: 339.135mm

446.4 / 339.135 = 1.32 RPS

= 78.98 RPM

STANDARD CORE

diameter of core: 50mm

circumference: 157.08

446 / 157.08 = 2.84 RPS

= 170.4 RPM

Outer Circumference

STANDARD REEL (this represents the max, as most split reels are smaller)

outer diameter of reel @ edge = 361.95mm

outer diameter circumference = 1137mm

446 / 1137 = 0.39 rotations per second

= 23.5 RPM

Conclusion: The maximum RPM of the system will happen with a split-reel core, and is 170RPM. The minimum RPM system will occur with a full standard reel, and is 23.5RPM.

We should be able to use these figures in other calculation - IF THEY ARE CONFIRMED. Please take a look and let me know if my head is on straight.