“The Scale Card has come up with another handy tool to help modelers in large-scale accurately pursue their hobby. This is a conversion chart, available in a variety of different scales (as above). Each chart is printed on both sides of a piece of yellow cover stock, which is then plastic laminated and three-hole punched. Some on the information on the sheet is general (like actual diameters of standard machine screws, grade percentages, and so forth), but most has been custom tailored to your scale. There is a stripwood table, which converts dimensional stripwood into scale inches. This goes incrementally by 64ths of an inch. The scale inches are given in decimal form, but instructions are included for converting them to fractions, Another chart converts tenths of a (real world) foot into inches (also real world). Still another converts American Wire Gauge (AWG) solid wire numbers into scale inches, while another will aid you in converting real-world decimals into scale decimals.

On the flip side is a chart that tells you the proper percentages for converting to your scale from 37 other scales, including all of the common model-train scale. The chart that converts music-wire diameters to scale inches could be very handy, as could the one converting micro-machine-screw diameters to scale inches. And, finally, there is a grade-percentage chart that tells you what the percentage of rise is over 12”, from 1/16” through 2” in 1/16” increments.

Altogether, this is a handy reference. If you are doing scratchbuilding or kitbashing and are having difficulty with scale issues, you may find this of great value. – M.H.