FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1924
1924 - 0343.PDF
' MAY 29, 1924 mostly 10 ins. to 16 ins. These young trees give the best results, being tougher and whiter than older trees—quite 75 per cent, to 90 per cent, of each plank being usable. They run up to 30 ft. in length. Large stocks of these logs are available, in three stages of manufacture —bone dry ready for immediate use ; seasoned ; and fresh sawn. All are in log formation, in stick and cleated. Many of the leading aircraft manu facturers in England art- using these specially-selected ash planks, and it may be added that a plank by plank selection is allowed. John Maclennan and Co., 115, Newgate Street, London, E.C.I. THE Textile side of aircraft is looked after bv this firm, which, established in 1875, has been able to turn its just on 50 years' experience of cotton, and the like to good account as far as aircraft are concerned. Here are just a few of the items in Aircraft Smallware handled by this firm :-—Egyptian Cotton Tapes, " India" Tapes (American cotton), Linen Tapes (Flax), Cotton Webbing, Flax " Kite" Cord, Balloon Cords, " Flexotube " Insulated Sleeving, Linen Thread, etc., etc. Marconi's Wireless Telegraph Co., Ltd., Marconi House, Strand, London, W.C.2. As long ago as 1912, when flying by aeroplanes was still in its infancy, the Marconi Company turned its serious attention to the problem of developing wireless apparatus suitable for installing in aeroplanes for the purpose of main taining communication with the aero plane when in flight. During the European War, both the art of flying and the art of radio com munication developed by leaps and bounds, and wireless telegraph apparatus was extensively used in connection with aircraft throughout the War, and especi ally during its later stages. After the Armistice, when attention was con centrated on commerical flying, the Marconi Company, realising the enor mous importance of wireless communica tions in connection with such services and the special nature of the require ments, immediately formed a special department for attacking the problem of aircraft communication both for commercial and military purposes. Much valuable, research work, leading to the evolution of finished designs, has been Description. Aircraft direction finder set. . 100 watt inter-aircraft set (short wave) 150 watt "all purpose" air craft set 150 watt commercial aircraft set 0-5 k.w. aircraft set . . 150 watt aircraft telegraph set Aircraft artillery co-operation ground receiving set Aircraft artillery co-operation set Maintenance engineers' air craft testing set MARCONI AIRCRAFT WIRELESS SETS Tvpe. A.D.4 . . A.D.5 . . A.D.6 . . AD.6A A.D.8 . . A.D.9 . . A.D.10.. Power. — 100 watts 150 watts 150 watts 500 watts 150 wattM — Wave-range 600-1,000 rn. T. 75-125 m. R.75-125 m. T. 350-1,200 m R. 350-1,200 m T 350-1,200 m. R. 850-950m. T 600-1,500 m. R. 600-4,000 m T. 350-l,20(im R. 350-1,200 m. R. 200-400 m. Remarks. For installing in large distance aircraft. For small fighting machines long- Weight. 13-2 kilos. 30-5 kilos. A.D. 11.. 40 watts . . T. 200-400 m. A.D.IIA 100 watts R. 400-1,200 m. An all-purpose set for naval and 42 kilos. military or commercial uses. For commercial service aircraft, or 42 kilos. " fixed wave " services For long distance, bombing and 73 kilos. reconnaissance machines. A.C.W. telegraph set for military — and naval services. For gun-ranging in conjunction — with the A.D. 11 or 11A trans mitter For naval and military gun- 17-2 kilos. ranging 28-6 kilos. For general use at aerodromes . . — ::***««« W«V**:« ""' l MARCONI AVIATION WIRELESS SETS and Receiving Set. 1, A.D.5 Receiver. 2, A.D.5 Transmitter. 3, A.D.6 Transmitting 4, A.D.8 Transmitter. 5, A.D.8 Receiver. 343
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
