•^ 



The aanifolding for the inflation gas includes first stage regulators 

 for mating to the scuba bottles. 



When the device is assembled, the upper end of the reel spindle 

 is held in position along the central axis by inserting the check 

 valve into a centering bracket mounted in the upper subasseably. 



Hollc", 2-inch-diaa<eter, buoyancy spheres fill spaces between 

 the scuba bottle housings in the upper fiber glass double-walled structure. 

 These spheres are rated to withstand water pressure at depths to 1,000 

 feet. Their purpose is to provide buoyancy to offset excess in-water 

 weight of the high density laaterial used in fabricating the device. 

 The quantity of these spheres can be varied to adjust the positive/neutral/ 

 negative buoyancy condition of the device. 



The design characteristics of the device are: 



Height, with hag inflated 68 inches 



Height, with bag collapsed 32 inches 



Diameter 36 inches 



Bag Diameter 20 inches 



Weight, dry 320 pounds 



Weight, in-water adjustable, noninal neutral 



(with male prod) 

 Lift, with bag collapsed approxinately 20 pounds 



(without sale prod) 

 Lift, with bag inflated approxiniately 670 pounds 



(without sale prod) 



Messenger line, 1/2-inch diastecer, braided 



Capacity 750 feet 



Breaking strength 4,200 pounds 



Messenger line, 3/S-inch <3ia."ieter, braided 



Capacity ! ,000 feet 



Breaking strength 2,700 pounds 



The device can he adjusted to a slightly positive buoyant condition 

 when it is to be used in streaming a njes&enger line between an object 

 on the bottom anc* the water's surface. This adjustaent occurs when 

 the male prod is detached froa the device. However, if the prod Is 

 not to be detached the condition can be attained by adding th«^ required 

 number of small flotation spheres. The buoyancy bag need not be inflated. 

 There may be occasions, however, when diveis will find it necessary 

 to increase the buoyancy by adding inflation gas. In these situations- 

 the diver controls the effective buoyancy by properly setting the 

 Eipper slide along its vej'cical track. This capability also provides 

 the diver with tlie option of sending light loads to the surface without 

 deploying the messenger line. 



