Provisional Oxy-Helium Diving Tables (200 ft – 500 ft), by Hempleman and Trotter

Provisional Oxy-Helium Diving Tables (200 ft – 500 ft) 1970, Parts I and 2.
Report No. 2/70; Copy No. 14
H V Hempleman and C Trotter

Part I: Short duration dives (less than 15 minutes bottom time)
Part 2: 1 hour and 4 hour duration dives

Stapled A4 booklet with buff coloured card cover with title window in the cover. Stamped ‘Restricted” and inscribed ‘D S Regs. Tea[?] stain on page one. 4 or 5 pages annotated in pencil.

42 pages (printed one side only)
Black and white text and tables
210 mm x 298 mm (approx. 8.25 in x 11.75 in)
Undated (1970?), Department of Naval Physical Research, Ministry of Defence

£8.50

1 in stock

Additional information

Weight .5 kg
Dimensions 32 × 24 × 2 cm