www.mcdoa.org.uk The design is simple and strong. 1hn clamping nienhanisin has holm in, proved.and \ ill\ n corr(sivn 1,1111,d 1,1,1. Safety AIR RESERVE VALVE '1'1, fitted will) lin air \ 1' \ I in it cannot 1An 1.0.s.. `Reserve' when Comfort 'empty. The N'11.IV11 I1111-1 110 1'1111111011.11 which can Iii .111' 111' ..111.111. HARNESS !ICI% nl 11111 \\ harness is III•sirm•II IVO 11 I% 111111- :i1.1.11p, II) 111/110' 11 \N1.11'111 11,`11 1111111, The Essgeo 'Mistral' Aqualung by comfortable Lo \war. Siobe, Gorman based on the famous quick-release n.11 d o•dhold I.11H I . I , al Cousteau-Cagnan design has all the take off the Ihn latest refinements that research, has water, or jettison it , suggested and experiment realised. TWIN CYLINDER CONVERSION DEMAND VALVE The double-lever You can contnit action o.(1,1('OS. opening. resistance - Aqualung into a lc 11111iimmih. didimomiiiiii1111111111111111 iiiiiiiiii1111111111110111111111111111111111111nammiommetailef to a minimum, and the single.stage * In u8 for /mt., II, reduction gives maximum air-flow. I6'88w,, '31 I II III The Siebe, Gorman 'Mistral' The t osi reliable Aqualung le/fs, Pea's' Pit; 0- SIEBE, GO It \ \ N & CO. LTD. 1/ 40 4 Neptune Works, Davis Road, - `MOBELV—see page 54 Chessington, Surrey. SIEBE 41414 Telephone: Elmbridge 590(1 111111namaill111111111 [IR THE SPORTSMAN Manchester Office: 274, Deansgate. 11„ I 11"""1"111101111111111111111111111111111 iiiiiiii1P0 1111111 Telephone: Deansgate 0000 GORMAN v0, S ARRANGED 000851 & CO I TO. 500T11080. www.mcdoa.org.uk 4 Vol. 8 No. 3 H.M.S. VERNON, 1 www.mcdoa.org.uk MECHANICAL R AIRRESERVECHANICAL VALVE. FIRST WITH lullINELUNC We specialise in THE HEINKI EVERYTHING FOR THE UNDERWATER SPORTSMAN smtVA $01 including the latest designs and all the better makes of DEMAND VALVE LUNGS DIVING SUITS 1 SWIMMING GEAR MECHANICAL AIR RESERVE SYSTEM •1111I' 111f411 .1111111i1111, 11111 1.,11.• I I ,. .1. incorporated in I 114. 1.1,11v ..1 1h,• . q11111111‘.111 f44t 11141111 1111111 1111,. Is I.....1 ,1,1.1.11.11.. 111, h 1 1, Ills 141 11..1 III 1.1 & EQUIPMENT with a S1111401111.111111 11. I 111 111111 1 ensures a ri...t•r‘t• ..1110 11.1, I 1 Ili 11.. 111 1 11 . 1 Ih. .1,111111,1 .11111. 1 PLUS 0, //na," 1:11,l e 1.11110 OM 1 i" with restrif ha Is prevent IsPert..0111,:. SURFACE DEMAND ATTACIIMEN I (AIRI !NEI CNC) I 1111 I III 1'11111 I 1'.1111111A1 for 14,11g-duration dive. in •.1,4,11.,0 v.,14 144 %hod. , low 1,1111:S1111C air supply Inns, 4,44i 0.14 pressor ...1.1111111n ,1 rill ..1.•, PLUS universal cylinder et11,0145,• .1.. o. damp Is fit all / nlernalisnal ..lan,I,.,./ i11.. valves. 1111.,1.11. I 1, TWO-STAGE PRESSURE REDUCTION VALVE III 1, 1 for deep free diving, hydrostatically 1.:11.o„ v.1 to 1111.111i kli compensate for depth PLUS rent/eii-iel breathing action, giving; el polio... I 1111 I III I1MA 1 1 1111 eilliludrs. energy-s,u,ingbrealliing in all 1.4 \ 14 h., 4.4 .4.41 May we send you our ,4,14.44 14,44. 11. .1 NEW LIST and folder of illustrated leaflets ? FREE—of course 11111 I VI 1101111 •11x11 1,1 Ilan 1i11111.111 al, told. tf, 126 HANWORTH ROAD idi/e/PS 100) HOUNSLOW, MIDDX. A d10100 SIEBE-HEIN K E Tel. HOUnslow 67 22 daal EVERYTHING FOR THE SPORTSMAN 1111111NO 111111111111 AM , r II I 11. %,‘ Noillitito Wool he, 'PAY-AS-YOU-PLAY' DEFERRED TERMS ARRANGED ! 111.461, 1.home11ipitsis, Coo • gip 1*1. 01111111111.0 1111111 www.mcdoa.org.uk www.mcdoa.org.uk www.mcdoa.org.uk R.N. Diving Magazine Contents EDITORIAL STAFF page Chief Petty Officer R. L. BENFIELD, Editor. THE FUTURE OF DIVING IN THE ROYAL NAVY 4 Lieutenant H.. E. CAISLEY, Treasurer. SEA FOOD 5 Instructor Lieutenant J. P. JEFFERSON, B.Sc., R.N., Secretary. MACMEMO 7 A/P.O. M. J. BRASSINGTON, Cartoonist. THE SECOND TWELVE MONTHS 8 Vol. 8 December 1961 No. 3 REVERSED EARS . 11 PORTSMOUTH COMMAND B. AND M.D. NOTES . 13 \e, SEARCH AND RECOVERY OF CRASHED AIRCRAFT 14 MANMWYOMMOOMOOMM MEDICAL NOTES AND COMMENTS ON DIVING ACC1DEN IS 17 ADVICE TO THE ROYAL NAVY ON STARTING A SUB-AQUA CLUB 23 UNDERWATER AT LIPARI 26 We Wish all our readers DIVING . 29 LONDONDERRY DIVING TEAM 30 Merry Christmas UNDERWATER PHYSIOLOGY . 33 DIVERS' CROSSWORD 36-37 THE MOBELL 37 and DIVERS EXCEL IN DIVISIONAL SPORTS . 41 THE HORSEA MONSOON 44 a Happy New Year LETTER-DISILLIUSONMENT . 47 MJNIVAAA% KAf \Y, VOWS %WI" VAlk4M1t1 www.mcdoa.org.uk www.mcdoa.org.uk The Future of Diving in the shallow water divers — in proving the fleet. Diving must then go ahead the economics of operating under- and it will then only be a matter of Royal Navy water. We haven't really started to waiting until the entire Board of exploit diving in the field of ship J. R. CARR O.B.E., R.N., Superintendent-of-Diving Admiralty is composed of ex-divers by CDR. husbandry apart from clearing the of one sort of another. odd outlet and undoing wires round N my opinion diving should for a time but eventually it will decay The importance of retaining the since externally there is no real screws. The Diving Manuals, going flourish — whether it does so or right back at least to the 1936 volunteer principle in naval diving is Inot depends on many things, above appreciation of the worth of its not always appreciated. I am sure it individuals and internally promotion edition, have contained the illumin- all the outlook of naval divers as ating statement 'Practiced divers can is important and that we shall only regards diving and their other service is retarded to 'dead man's shoes'. lack 'volunteers' if example is bad Alternatively a branch can look 'out- work from four to six hours daily duties. Diving is an expensive means below the bottom of a ship and can and leadership is poor because the to a number of ends — it is only wards,' regard its professional exper- very challenge of operating in going to be paid for if it shows tise as a key to other exploits, clean from seven to 12 square yards per hour according to the state of another element calls forth so much results. We must recognise that we encourage the wide practice of its art that is good in man. On the other belong to a small navy in which and always be ready to accept in- bottom'. Bearing in mind that this referred to standard equipment with hand there must be no stigma on everyone must pay his way by novations. those who fail in courses or decide to military preparedness. It is no use all its stages we ought to be able to I hope that Clearance Divers are do at least as much with S.A.B.A. relinquish a diving rate. Confidence counting on a few glamourous adopting the broader view and it is is essential underwater and it may incidents to justify naval diving and and S.D.D.E. — so far there has been important that they should do so at a no demand from sea for a suction take more moral courage to admit to spending the rest of the time having time when diving has received good doubts and give up diving than to fun with the lobsters. Expeditious pad and pneumatic scrubber! publicity and is generally well On the sporting side the 'amateurs' hold on and endanger others for fear achievement of all tasks, particularly thought of. It does involve individual of losing face. the mundane ones, is what will count — Exped, Medfoba, etc. divers — restraints — it means accepting being have their part. The sea may yet in the long run. a part, albeit a virile one, of the A recent naval recruiting poster prove a better playground than the described clearance divers as 'rather One implication of the cost is that larger T.A.S. Branch. It means football field or the cricket pitch. we can only offord a small branch of accepting that Clearance divers piratical young men' — an apt and Provided all these types of diver complimentary term when read in full-timers, augmented by a larger should do a fair amount of general work together both on the surface number of part-time divers. Now service and that while doing this a proper context — but piracy is out of and underwater there will be real fashion and it is not by privateering small branches of specialists in any C.D. can do just as much for his appreciation of the scope of diving in organisation cause administrative trade as he can while a member of a that naval divers will flourish. problems; any such branch that is team. Officers 'must expect fewer not soundly grafted to the naval tree diving jobs (this need not mean much is likely to get lopped off in the testing less diving). General List Officers Sea Food time of economy. Most of us will can hope for a `makee learn' job and remember the flourish with which later in charge of a team but their by J. `BEATON'—WARNER the Quartermaster rate was intro- promotion will depend just as much i. FIRST of all, catch your hare' fresh water, put in the lobster and duced but where is it now? Our on their other service work.