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阿里安5运载火箭正在研制中,拟于1995年首次发射。与此同时。由其改型的ALD-S和ALD-P两种运载火箭,也在考虑之中。ALD-S用于发射4000kg以下的极轨道卫星。它由4级组成,第一级采用装药量为230t的阿里安5的固体助推器(代号P230);第二、三级分别为新研制的装药量85t和30t的固体发动机(代号分别为P85和P30);顶级采用阿里安5顶级L9改型的液体发动机。它使用阿里安4的4m整流罩。
Ariane 5 launch vehicle is under development and will be launched for the first time in 1995. at the same time. Its modified ALD-S and ALD-P launch vehicles are also under consideration. ALD-S is used to launch polar orbiting satellites below 4000kg. It consists of four levels, the first level with a charge of 230t Ali An 5 solid propeller (code P230); the second and third were the newly developed 85t and 30t charge of the solid engine (code Respectively, P85 and P30); the top use of the top 5 L9 modified liquid engine. It uses Arian 4 4m fairing.