A non-flying prototype was intended to demonstrate that controlling unruly solid propellant would be possible during landing .
一个无法飞行的雏形预计将会演示,在着陆期间控制难以驾驭的固体推进剂也是可能的。
Russian sources said that much more experimental work and funding would be required to prove that solid propellant could be safely used for a manned landing .
俄罗斯的消息人士称,这将需要更多的试验工作以及资金来证明固体推进剂可以被安全地用于载人着陆。
Quite often the propellant must also be stored in a pressurized container with thick walls and pipes , further limiting the payload size .
通常,推进剂必须也装载在一个厚厚的外壳和管子的高压容器内,这样可以限制装载的尺寸。
The system runs on a green hydrogen peroxide propellant that leaves behind only water and oxygen , a solution not too far from the hydrogen peroxide in the common medicine cabinet .
Neil mcclelland , a spokesman for kleinmann in britain , said the signs so far were that the culprit was the anti-corrosion liquid inside the propellant can .
To achieve the right mixture of propellant , the patent presents a hybrid rocket motor that would use 3-d stereolithography to essentially print the fuel .
But chemical-based systems are severely limited by the fact that the vehicle mass must be made mostly of propellant , which leaves little room for the payload .