Research on load technique for rocket sled

Base on aerodynamics and related rocket engine theories, two types of dual-rail sleds were designed and experimentally tested on a 600 m long non-gap sled rail. Velocities of sled were measured by using the three methods of magnetic induction, laser interferometry and high-speed photography respectively. Their speeds reached 45 m/s under 50 kg load and 200 m/s under 100 kg load respectively. Experimental results indicate that the velocities obtained by the three test techniques are consistent with each other and the measured velocities are in good agreement with the calculated results.