Joined together by enclosed passageways, and complete with air 
    
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
    
   
    
   
   
   
   
    
  
conditioning, water drainage, electrical power and intercommunication 
systems, these 6 units were of great value in the high humidity 
conditions experienced ín Liberia. 
e. Airborne Equipment 
  
Two RC-130A Hercules aircraft were employed for this project. 
Original plans called for using the 3 available camera stations 
(as shown in Figure 4), each equipped with an ART-25 gyro stabilized 
mount. The 88 mm KC-3 camera was to be installed in the alternate 
Prime Vertical Camera Station (Sta. No. 19) over a rectangular 
16" x 20" window (20" across line-of flight); the 6'" KC-8 camera 
would be installed in the Prime Vertical Camera Station (Sta. No. 18) 
over a window of the same size and orientation; the 88 mm RC-9 (which 
at first was intended as back-up for the KC-3) would be used in the 
Convergent camera station (Sta. No. 17) over the circular window 
approximately 40" in díameter. e v 
Two RC-9's had been provided AST-2 by Aeronautical Systems 
Division, Wright-Patterson AFB: RC-9 camera #370 (Wild Super- 
Aviogon Lens #SAG-9), and RC-9 camera #463, (Wild Super=-Aviogon 
Lens #SAG-26). Also aboard each RC-130 was a Straight Line Indicator. 
This equipment was developed by Mr. DiCarlo during his tenure with 
the Aerial Reconnaissance Laboratory at Wright-Patterson AFB. Used 
in conjunction with two HIRAN ground stations for accurate aircraft 
positioning, the device is used to maintain parallel flight lines 
with the desired sidelap. It too proved very effective during 
Project AF 67-4.