| 词条 | Sommerfeld Tracking |
| 释义 |
Nicknamed "tin lino",[2] Sommerfeld Tracking consisted of rolls {{convert|3.25|m|ftin|abbr=on}} wide by {{convert|23|m|ftin|abbr=on}} long. Mild Steel rods threaded through at 9 inch intervals gave it strength. The rolls could be joined at the edges by threading flat steel bar through loops in the ends of the rods.[3] Sommerfeld Track was used extensively by the Royal Air Force in the Second World War to make runways at their airfields, as it could be deployed quickly. In addition, some 44,500,000 yards of Sommerfeld Track was supplied to US forces by Britain.[4] Sommerfeld Track was used widely on RAF and USAAF Advanced Landing Grounds, both in the UK and elsewhere. UseThe ground was cleared and, if swampy, a layer of coir (also known as Coco Peat) or coconut matting laid down. The Sommerfeld track was unrolled over the ground, pulled tight by a tractor, bulldozer, or similar vehicle, then fastened to the ground with angle-iron pickets.[1] A typical runway made of Sommerfeld tracking was {{convert|3000|ft}} by {{convert|156|ft}}. It would appear that this method did have some limitations and there are various reports of airfields being out of use during heavy rainfall due to mud, and the fact that the track would lift out of the ground. There are also anecdotal reports of it causing damage to aircraft, such as wheels being torn off. See also
Notes and references
1. ^1 Smith, David J. "Britain's Military airfields 1939-45" 2. ^1 http://www.flightglobal.com/pdfarchive/view/1953/1953%20-%200510.html 3. ^1 Flight 1944 p 101 4. ^http://www.flightglobal.com/pdfarchive/view/1944/1944%20-%201123.html
External links
2 : Airfields|Airport engineering |
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