Post-war civil D18S, C-45H and C-45J 8500 lbs to 9500 lbs 

Model D18S Specifications 
 
Approved Type Certificate:   
Total Built:  1,003  
Price:  $78,050 (w/o options) 
Wing Span:  47 feet 8 inches  
Length:  34 feet 3 inches  
Basic Empty Weight:  5,500 lb. Maximum Gross Weight: 8,750 lb. 
Engine:  2 - Pratt & Whitney R-985 AN-1 or AN-3 nine-cylinder, air-cooled radial, 450 hp, each 
Propeller:  Hamilton Standard “Hydromatic”, full-feathering, controllable pitch 
Speeds:  Cruise: 200 mph/174kts. Landing: 65 mph/56kts. 
Range:  1,000 miles 
 
Listed below are specifications and performance data for the 1939-40-41 (in that order) Beech "Twin" as powered with 2 "Wasp Jr." SB or SB-2 (R-985) engines rated 400 h.p. at 2000 r.p.m. at 5000 ft. (450 h.p. at 2300 r.p.m. for takeoff). 

Length overall 34'3", height overall 9'5"; wingspan 47'8"; wing chord at root 135" and tapered to tip; total wing area 347.5 sq.ft.; airfoil NACA-23000 series. 

Wt. empty 4750-5031-5043 lbs.; useful load 2450-2469-2457 lbs. payload with 210 gal. fuel 915-934-922 lbs.; gross wt 7200-7500-7500 lbs.. 

Max. speed varied from 240 mph/208kts at 5000 ft.; cruising speed (.75 power) varied from 220mph/191kts at 11,000 fit., landing speed (with flaps) 58-61-61. 

Climb 1950-1850 ft. first min. at SL; ser. ceiling to 27,500 ft.; single engine ceiling to 12,000 ft.. 

Gas cap. normal 210 gal.; gas cap. optional 260 gal.; oil cap. 13 gal.. 

Cruising range (.60 power) at 12,000 fit. using 43 gal. per hour 1000 miles. 

Price normally varied from $54,750 to over $60,000; average price of an AT-11 was $51,000. (gross wt. for AT-7 was 7850 lbs. with crew of' 5 (a pilot, co-pilot, and 3 navigation students) later raised to 8060 Ibs.
Gross wt. for AT-11 went as high as 8727 lbs.; gross wt for C-45 series varied from 7659 to 8727 lbs. 


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Model 18 / C-45 Expeditor Specs

Horsepower: 450.0000     	Gross Weight: 8750 lbs 
Top Speed: 200 kts       	Empty Weight: 5770 lbs 
Cruise Speed: 183 kts    	Fuel Capacity: 206.00 gal 
Stall Speed (dirty): 67 kts 	Range: 632 nm 
   
Takeoff 			Landing 
Ground Roll: 1405 ft 		Ground Roll 1250 ft 
Over 50 ft obstacle: 1760 ft 	Over 50 ft obstacle: 1460 ft 
   
Rate Of Climb: 1190 fpm 
Rate of Climb (One Engine): 225 fpm 
Ceiling: 20500 ft Ceiling (One Engine): 7750 ft 


DIMENSIONS: 
Wing span: 49 ft 8 in / 15.14 m. 
Length: 35 ft 3 in / 10.7 m 
Height: 9 ft 4 in / 2.84 m. 
WEIGHTS: 
Empty equipped: 5,845 lb / 2,650 kg 
Max. takeoff: 9,900 lb / 4,490 kg 
PERFORMANCE: 
Max. cruising speed: 191 kt / 354 kph 
Economical cruise: 160 kt / 298 kph 
Initial climb: 1,400 ft per min. 
Service ceiling: 21,400 ft 
Range: 1,330 nm / 2,460 km with maximum fuel 
CAPACITY: Typical seating for 7-9 passengers and 2 crew


Designation:  Beech 18 C-45/AT-7 
Version:  Model D18-S 
Location :  Canadian Warplane Heritage Museum 
Powerplant :  Pratt & Whitney R-985-AN-14B Wasp Jr. 
Number of Engines :  2 
Wing Span :  47ft 7in (14.5m 
Length :  32ft (9.74m) 
Height :  9ft 8in (2.95m) 
Horsepower :  450" 
Range-Speed :  1,626 miles (2,618 km) - 225mph/195kts (362km/h) 


Specifications   Propulsion   Performance
   
Length:	 	34' 2"
Height:		9' 8"
Wingspan:	47' 8"
Empty Weight:	6175 lbs.
Gross Weight:	9300 lbs.
No. Engines: 	 2
Horsepower:	450 hp per engine
Powerplant:	Pratt & Whitney R-985-AN-1 Wasp Juniors

Range: 		1140 miles

Speed (max):	219 mph/190kts

Speed (cruise):	
150 mph

Climb:
Ceiling:	18200 ft


 
Accommodation : 8 
Dimensions 
Span : 14.5m (47'7ft) 
Length : 10.4m (32'0ft) 
Height : 2.8m (9'3ft) 
Weight 
empty : 2,546kg (5,610lb) 
max : 4,082kg (9,000lb) 
Power Plant : 2x 450hp P&W R-985-AN-14B Wasp Junior 
Performance : 
max speed : 368km/h (230mph) (200kts)
max climb : 1,280ft/min (6.5m/sec) 
ceiling : 22,000ft (6,710m) 
range : 2,585km (1,300miles) 


