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engine ignition
Figure 2 illustrates a sponge device used for engine ignition in a typical propellant tank.
      
Ignition systems require gas free delivery during engine ignition while propellant is settling over the tank outlet.
      
Initial data analysis showed that the countdown, engine ignition and initial phase of flight were normal.
      
Investigation of deflagration to detonation transition for application to pulse detonation engine ignition systems.
      
In contrast, in quasihorizontal launch mode the center of the front dome is submerged at engine ignition.
      
In contrast, in quasi-horizontal launch mode the center of the front dome is submerged at engine ignition.
      
Once the burn ends, the sponge must hold propellant against adverse accelerations in order to be ready for the next engine ignition.
      
Remote disconnect of umbilical cords, engine ignition, launch and aborts are also functions of the ground support equipment.
      
So, the propeller blades will be open before the first engine ignition.
      
This is a pulse-relay control system designed for the single-axis Sun-pointing before the braking engine ignition.
      
The EHC is a catalyst-coated metal pre-converter device that is resistively heated by an electric current just prior to engine ignition.
      
The dynamometer controller controls the four-cylinder engine except for engine ignition.
      
The propellant quantity demanded during engine ignition varies greatly and no typical case can be presented.
      
The sponge must hold enough propellant for main engine ignition.
      
 

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