- Source: Boeing Model 853-21 Quiet Bird
The Boeing Model 853-21 Quiet Bird was a US Army reconnaissance plane study developed by Boeing in the early 1960s from their Model 831. It was an early example of stealth technology, especially electromagnetic low-observability.
Design and development
Development of the Model 853-21 began in 1962 at Boeing Wichita, only a 1/2 scale prototype was produced which never flew, but tests showed that it had a very low radar cross-section (stealth aircraft).
Specifications
Data from BoeingGeneral characteristics
Crew: 1
Length: 33 ft 0 in (10.06 m)
Wingspan: 33 ft 7.8 in (10.26 m)
Height: 7.7 ft (2.3 m)
Wing area: 179.5 sq ft (16.67 m2)
Airfoil: 65A415
Empty weight: 6,000 lb (2,721 kg)
Gross weight: 8,150 lb (3,696 kg)
Powerplant: 1 × General Electric CF700 , 4,200 lbf (19 kN) thrust
Performance
Stall speed: 80 kn (92 mph, 150 km/h)
Range: 1,160 nmi (1,330 mi, 2,150 km)
Service ceiling: 47,000 ft (14,000 m)
Rate of climb: 3,050 ft/min (15.5 m/s)
Wing loading: 45.4 lb/sq ft (221 kg/m2)
Thrust/weight: 0.52
See also
Related development
Boeing Bird of Prey
Aircraft of comparable role, configuration, and era
Lockheed Have Blue
Northrop Tacit Blue
References
External links
"Never-Seen Photos Of Boeing's 1960s Stealth Jet Concept That Predicted The Future". foxtrotalpha.jalopnik.com. 22 September 2015. Retrieved 27 September 2015.
Kata Kunci Pencarian:
- Boeing Model 853-21 Quiet Bird
- Boeing Bird of Prey
- Boeing MQ-25 Stingray
- Boeing X-32
- Boeing X-45
- F/A-XX program
- Boeing MQ-28 Ghost Bat
- Boeing Phantom Ray
- Stealth aircraft
- Northrop Grumman B-21 Raider
