Orta su trol ağlarının dizayn edilmesinde, teknenin özellikleri ve kullanılacak ağın boyutları çok önemlidir. Ağ tekneden küçük ise teknenin çekim kuvvetinden yeterince yararlınalamaz, yada takım büyük ise tekne gerekli çekim kuvvetine ulaşamaz. Takımların dizayn edilmesinde bu konu üzerinde birçok araştırmacı tarafından çok sayıda formül geliştirilmiştir. Bu çalışmada, 500 HP motor gücüne sahip bir teknenin çekebileceği boyutlarda iki farklı orta su trol ağı, metamatiksel direnç hesaplama formülleri yardımıyla belirlenmiştir.
The determinations of suitable size of the net for vessel in construction of mid-water trawl net. In construction of mid-water trawl, the specifications of the boat and the size of net which will be used are important. If a net is too small, the vessel may not be using all the available engine power at normal towing speed; if too large, the vessel will not be able to tow it fast enough. Many formula had been developed by researcher about designing of mid-water trawl nets. In this study, two different type mid-water tawl nets which a boat which has 500 HP engine power is able to tow had been determined using mathematical resistance formula.
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FAO., 1972. Catalogue of Fishing Gear Designee, Fishing News Books Ltd. Farnham. Surrey, England, 160 pp.
FAO., 1975. Catalogue of Small Scale Fishing Gear, Fishing News Books Ltd. Farnham. Surrey, England, 69-73 pp.
Ferro, R.S.T., 1981. The Calculation of the Twine Area of a Trawl Net. Scottish Fisheries Information Pamphlet Number 5, 6 p.
Fridman, A.L., 1986. Calculation for Fishing Gear Designee FAO. Fishing Manuals. ISBN.0-85238-141-7, Rome. 30-74 pp.
Marlen, B.V., 1988. A Decade of Research and Development of Midwater Trawls in the Netherlands, World Symposium of Fishing Gear and Fishing Vessel Designee, Marine Institute St. John's Newfoundland, Canada, 141-153 pp.
Nomura, M., Yamazaki, T., 1975. Fishing Techniques I, Compilatoin of Transcript of Lectures Presented at the Kanagawa International Fisheries Training Center. Japan International Cooreration Agency, Tokyo, 97-113 pp.
Reid, A.J., 1977. A Net Drag Formula for Pelagic Nets. Scottish Fisheries Information Pamphlet Number 7, 12 p.
Robertson, J.H.B., 1990. The Design and Testing of a Divided Trawl for Comparative Fishing Experiments. Scottish Fisheries research Report Number 49, 13 p.