NO. 3 



LIQUID-PROPELLANT ROCKET GODDARD 



by the Trustees of Clark University, made it possible to continue the 

 development on a scale permitting actual flights to be made. This 

 was very desirable, as further laboratory work could not be carried 

 out efifectively without flights in which to test performance under 

 practical conditions. 



Work was begun in September 1934, the shop being put in run- 

 ning order and the equipment at the tower for the flights being re- 



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D 



H 



^Soft 



\ poo ft — *- 



3.000 ft 



Fig. I. — Relative positions of launching tower, dugout, shelter, and telescope. 



placed. The system of remote control previously used was further 

 improved and simplified, and a concrete dugout (pi. 7, fig. 2) was con- 

 structed 50 feet from the launching tower in order to make it 

 possible for an observer to watch the launching of the rocket at close 

 range. The relative positions of launching tower, dugout, shelter, 

 and telescope are shown in figure i. 



DEVELOPMENT OF STABILIZED FLIGHT 

 It was of the first importance to perfect the means of keeping the 

 rockets in a vertical course automatically, work on which was begun 

 in the preceding series of flights, since a rocket cannot rise vertically 

 to a very great height without a correction being made when it deviates 

 from the vertical course. Such correction is especially important at 

 the time the rocket starts to rise, for a rocket of very great range 



