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.
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
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)
