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二战之后,威利·梅塞斯米特教授在西班牙工作了数年,并设计出HA-200喷气式教练机,并于1955年首飞。在此两年前,代号P300的两倍音速轻型截击机的设计研究工作就已经开始,由此诞生了代号HA-300P的概念验证滑翔机。但由于西班牙对这个项目的兴趣摇摆不定,以及资金匮乏,整个计划最后转给了埃及。这就是HA-300的由来。事实上,它是作为埃及空军的单座截击机来设计的,计划装备两门20毫米或30毫米航炮以及两枚“环礁”空空导弹。HA-300使用一台布里斯托尔公司“猎户座”703喷气发动机,由于推力只有4850磅,仅能达到中等性能。该机最大速度M1.13,买用升限18000米,航程约1400千米。
After World War II, Professor Willie Mei Smesmet worked in Spain for several years and designed the HA-200 jet trainer and made its first flight in 1955. Two years ago, the design and research work on the codenamed P300 double sonic light interceptor was started. The concept proofing glider HA-300P was born. However, the entire plan was finally transferred to Egypt due to the volatile Spanish interest in the project and the lack of funds. This is the origin of HA-300. In fact, it was designed as a single-handed interceptor for the Egyptian Air Force and is planned to be armed with two 20mm or 30mm cannon and two Atoll air-to-air missiles. The HA-300 uses a Bristol-company “Orion 703” jet engine that achieves only moderate performance with only 4850 pounds of thrust. The maximum speed of the machine M1.13, purchase ceiling 18,000 meters, about 1,400 kilometers range.