Vehiole Dynamics Associated with Submarine Rescue 



O DENOTES AMES DATA 



O DENOTES DATA OF 

 REF. 2 



< 



DSRVANGLE-OF-ATTACK IN DECS. 



Fig, 18. DSRV Free Stream Characteristics 



where C^n ^^'^ K are functions of the vertical distance between 

 the bottom of the transfer bell and the hatch, Zj. 



9rv is the pitch angle of the DSRV (In degrees). 6^ denotes 

 the mean DSRV attitude angle (the angle to which the data is refer- 

 enced) in degrees and can be converted to disturbing forces and 

 moments as follows: 



Xdist (lbs) = Cx, 



TTd 



1 2 



etc. 



Ldi3t (ft-lbs) = Clj ^—^ d^,,i pVc 



etc. 



It was determined early In the experimental program that the flow 

 forces encountered during mating on the forward hatch with the 

 Skipjack sail configuration were more severe than those with the 

 Permit sail geometry, and flow forces encountered during mating 

 on the aft hatch are less severe than those encountered on the for- 

 ward hatch. Hence, almost the entire test program was conducted 

 with the Skipjack sail, and the data presented herein are repre- 

 sentative of the most severe flow forces that the DSRV will experi- 

 ence during mating with a downed submarine. 



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