The Martin T4M was an American torpedo bomber of the 1920s. A development by the Glenn L. Martin Company of their earlier Martin T3M, and, like it a single-engined biplane, the T4M served as the standard torpedo bomber aboard the aircraft carriers of the United States Navy through much of the 1930s.

General characteristics

Crew: three
Length: 35 ft 7 in (10.85 m)
Wingspan: 53 ft 0 in (16.16 m)
Height: 14 ft 9 in (4.50 m)
Wing area: 656 sq ft (70.0 m2)
Empty weight: 5,814 lb (2,643 kg)
Gross weight: 9,503 lb (4,320 kg)
Powerplant: 1 × Pratt & Whitney R-1690 Hornet 9 cylinder air-cooled radial engine, 525 hp (392 kW)
Performance

Maximum speed: 114 mph (184 km/h, 99 kn)
Cruise speed: 98 mph (158 km/h, 85 kn) (the plane had inaccurate speed)
Range: 363 mi (584 km, 316 nmi) [12]
Service ceiling: 10,150 ft (3,095 m)
Wing loading: 14.5 lb/sq ft (61.7 kg/m2)
Power/mass: 0.055 hp/lb (0.091 kW/kg)
Armament
1 × flexibly mounted 0.3 in (7.62 mm) machine gun in rear cockpit
1 × torpedo or bombs under fuselage

Pressing 8 will unfold the aircraft
Pressing landing gear can deploy the hook, and slow down the plane a bit

why are there lines in the plane's wing?

It's because if you want to make your own Langley carrier. The lines are where the size of the fold is. So you can't adjust the plane by using multi select