Source for American or World Indoor Record Progression?

[bambam1729]

A bit of cruising on the internet brought me to a US defence forces technical manual for sports facilities that includes a reprint of Bob Sparks 1969 table of imperial to metric conversions. It includes the note:



I'm not sure if the 1969 tables were ever updated or had errata but using the tables in the manual gives the following conversions (with precise mathematical conversions):
18-1 = 5.51 (5.5118)
18-2 = 5.54 (5.5372)
18-4 = 5.59 (5.5880)

These provide perfect alignment with the imperial heights measured in 1972 and the metric heights now listed.


Full reference for the document:

Planning and Design of Outdoor Sports Facilities
Departments of the Army, Navy and Airforce.
October 1975

(TM 5-803-10/NAVFAC P-457/AFR 88-33)

Very cool finding. Thanx, El Toro