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Custer Channelwing: Dreams and Schemes
The P-20 Raider

   

GENERAL  
Wing Span 75'
Length 55'
Fuselage Width 14' 6"
Fuselage Height 12' 4"
Pressure Cargo Hold 40' X 12' X 10'
   
POWER PLANT (Two Options)  
1. 4 X Rolls Royce/Pratt & Whitney  
RTM 322 (twin coupled)  
Max Power 5,600 ESHP  
Best Consumption: 0.41/lbs/hp/hr  
or  
2. Two Allison T-56  
Max Power 5,600 ESHP each  
Best Consumption: 0.56/lbs/hp/hr  
   
WEIGHTS  
Takeoff Weight (Max) 71,500 lbs
Empty Weight 39,200 lbs
Useful Load 32,300 lbs
Useful load W/internal fuel 14,300 lbs
Max Fuel (Internal) 18,000 lbs

Max Fuel (external)

10,000 lbs
   
PERFORMANCE (Allison T-56)  
Service Ceiling 30,000 ft
Max Speed 320 kts
Normal Cruise 300 kts
Minimum Control Speed 10 kts
Climb Rate @ max power 2,600 fpm
(RTM 322 will improve performance)  
   
FIELD PERFORMANCE  
Takeoff over 50' obstacle at  
MTOW 71,500 or less less than 500 ft
Landing Roll less than 500 ft
   
RANGE (Allison T-56)  
W/9,000 lbs cargo,  
no external fuel 2,596 nm
Ferry Range, no cargo,  
10,000 lbs external fuel 5,192 nm
(RTM 322 will improve performance)  
    
   
   
 
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