G.Swanborough, P.Bowers United States Military Aircraft Since 1909 (Putnam)
Two prototypes (33769/33770) of the Standard E-1, a 1917 design, were tested as fighters but production orders were placed for 460 E-1 as advanced trainers. Thirty-three (44542-44574) were delivered with Gnome 100 h.p. rotary engines, followed by 60 designated M-Defense (44575/45577, 49156/49212) and 75 identical E-1s (49133/49207) with the 80 h.p. Le Rhone. After the war, Sperry converted three E-1s, which were given new serial numbers (64228/64230), to radio-controlled aerial torpedoes by lengthening the fuselage and making other essential modifications. This conversion was part of a contract for the similar conversion of several Sperry M-1 Messengers (page 506) and the resulting Sperry MAT designation was also attached to these aeroplanes.
Jane's All The World Aircraft 1919
THE STANDARD E 1 DEFENCE BIPLANE
Intended, as shown below, for fighter and reconnaissance work, the E 1 was underpowered by 1917 standards. However, over 100 were built with Gnome and Le Rhone engines for fighter training, delivered from August 1918. With the 100 h.p. Gnome engine, a speed of 120 m.p.h. was possible.
THE STANDARD E 1 OR M DEFENCE BIPLANE.
Type Of machine Single-seater Biplane.
Name or type No. of machine E. 1. (M. Defence)
Purpose for which intended Reconnaissance & fighting.
Span 24 ft.
Overall length 18 ft. 10 11/16 in.
Maximum height 9 ft. 1 in.
Chord 42 ins.
Area of elevators 10.3 sq. ft.
Area of rudder 6.8 sq. ft.
Area of fin 2.5 sq. ft.
Total area of ailerons 23.2 sq. ft.
Engine type and h.p. 80 h.p. Le Rhone.
Airscrew, diameter 8 ft.
Weight of machine empty 828 lbs.
Load per sq. ft. 7.5 lbs.
Weight per h.p. 14.3 lbs.
Tank capacity in hours 2 hours.
Speed low down 99.8 m.p.h.
Speed at 6,400 feet 94 m.p.h.
Speed at 10.000 feet 85 m.p.h.
Landing speed 48 m.p.h.
To 6,000 feet in minutes 10 minutes.
To 10 000 feet in minutes 22 mins. 20 secs.
Theoretical ceiling 14,800 ft.
Disposable load apart from fuel 201 lbs.
Total weight of machine loaded 1.144 lbs.
Stagger 13 1/4 in.
Track 5 ft.
W.Green, G.Swanborough The Complete Book of Fighters
STANDARD M-DEFENSE USA
During 1917, the Aviation Section of the US Army Signal Corps placed an order with the Standard Aircraft Corporation for six examples of a single-seat fighter designed by Charles H Day. Intended specifically as a lightweight target defence interceptor, the Standard fighter was dubbed the M-Defense and was a two-bay staggered biplane of wooden construction with fabric skinning, power being supplied by an 80 hp Le Rhone nine-cylinder rotary engine. The first two M-Defense fighters were delivered in January 1918, but although manoeuvrability and handling qualities were commended, performance was considered to be inadequate for the combat role. The remaining four M-Defense fighters were therefore cancelled, but production was ordered of a modified version, the E-1, for the advanced training task, a total of 168 being built.
Max speed, 97 mph (156 km/h) at sea level, 82 mph (132 km/h) at 10,000 ft (3 050 m).
Time to 6,000 ft (1830 m), 10.6 min.
Endurance, 1.8 hrs.
Loaded weight, 1,150 lb (522 kg).
Span, 24 ft 0 in (7,31m).
Length 18 ft 10 in (5,74 m).
Height, 8 ft 1 in (2,46 m).
Wing area, 152.5 sqft (14,17 m2).