Download PDF by Duncan B Campbell: Ancient Siege Warfare. Persians, Greeks, Carthaginians and

By Duncan B Campbell

ISBN-10: 1841767700

ISBN-13: 9781841767703

Когда тактика осады стала неотъемлемым условием успеха в войне, генералы перед инженерами и учеными поставили задачу разработать тактику, прорыва обороны и блокады города с помощью фокусов и обмана. Это увлекательное исследование отслеживает изменения в тактике осады от Древней Персии (6 веке до н. э.) до осад, осуществляемых Римом 2-й век до нашей эры), описывая широкий спектр оборудования и техники, которые использовались в этот период.

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Yefim Gordon Landing Gear Hydraulically retractable tricycle type. All three units retract forward. The nose unit is equipped with twin KT-112/2 or KT-112A brake wheels (700-200mm) and levered suspension. The main units are equipped with single KT-111/2A or KT-111A brake wheels (1,300360mm) and levered suspension. All three units are fitted with automatic anti-lock brakes. The steerable nose unit has two turn limits (for low speed and high speed taxying). Retraction and extension is provided by a single hydraulic system; emergency pneumatic extension is possible in the event of a hydraulics failure.

On 22nd-27th August 1995, the aircraft was in the static display at the M AKS-95 airshow in Zhukovsky. In order to calculate trajectory guidance algorithms for the space shuttle, Lll converted a MiG-25PU 'Blue 22' into the MiG-25PU-SOTN (Samolyot Optiko-Televizionnovo Nablydeniya - optical/TV surveillance aircraft). The aircraft's purposes included: - advanced research of trajectory guidance algorithms for the space shuttle at altitudes below 20,000m (65,616ft) as part of the shuttle's total in-flight simulation complex.

As far back as the early 1960s, a group of engine designers led by Shukhov and Rotmistrov proposed a comprehensive upgrade of the R15B-300 turbojet. The idea materialised as the uprated R15BF2-300, Izdelye 65M. The improvement in performance was achieved by adding a compressor stage and increasing the combustion chamber and turbine temperatures. 75). The two engines were perfectly interchangeable, having identical dimensions and mount- ings. Providing the airframe was made more heat-resistant (that is, because of the higher turbine temperature), the new engines offered a substantial increase in rate of climb, ceiling, range and speed (up to 3,500km/h, or 2,187mph).

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Ancient Siege Warfare. Persians, Greeks, Carthaginians and Romans 546-146 BC by Duncan B Campbell

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