1. Development

2. Design

3. Specifications (Emsco B-8)

4. See also

5. References

6. External links

The Emsco B-8 was a two-seat, single-engine, low-wing, twin boom experimental aircraft designed by Charles F. Rocheville in 1930 while he was vice president of Emsco Aircraft Corporation, Long Beach, California.{{Citation needed|date=April 2016}}

Development

Rocheville sought for a safe, fool-proof airplane with exceptional range, endurance, and payload. He intended to make a non-stop flight from Tokyo to Seattle with navigator Theo Lundgren, a distance of about {{convert|8000|km|mi|disp=flip|abbr=on}}.^[1] The aircraft, registered NX55W, first flew on 17 April 1930.^[2]

By June 1930 it had been fitted with a {{convert|300|hp|kW|abbr=on}} Pratt & Whitney R-985 Wasp Junior nine-cylinder radial engine.^[1] Development ended in November 1930 because of lack of funds and the B-8 was scrapped.^[2]

Design

Despite its name 'Flying Wing' the aircraft carried a twin-boom empennage with a single vertical fin. The two crew sat in open tandem cockpits in a central nacelle with circular cross-section, initially with a {{convert|165|hp|abbr=on}} Continental A-70 in tractor configuration. The nacelle ended in a jet-engine like 'exhaust' nozzle at its rear, which actually was an intake to a boundary-layer bleed system driven by the engine which blew air through spanwise slots in the rear part of the 'Flying Wing' in an attempt to increase the wing’s performance. Another unusual characteristic of the design was its “reversed tricycle landing gear” with two main wheels under the front wing and a single aft wheel under the rear-end of the nacelle.^[1][2]

Specifications (Emsco B-8)

|genhide=
|crew=2
|capacity=
|length m=
|length ft=36
|length in=0
|length note=
|span m=
|span ft=60
|span in=0
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity={{convert|3300|l| USgal|abbr=on|disp=flip}}^[1]
|more general=

|eng1 number=1
|eng1 name=Continental A-70
|eng1 type=radial
|eng1 kw=
|eng1 hp=165
|prop blade number=2
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop note=

|perfhide=
|max speed kmh=
|max speed mph=145
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=125
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=
|stall speed kts=
|stall speed note=
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=
|range note=
|ferry range km=
|ferry range miles=
|ferry range nmi=
|ferry range note=
|endurance=70 hours
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|time to altitude=
|lift to drag=
|wing loading kg/m2
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}

See also

References

External links

• Images of the Emsco B-8:  , [https://c1.staticflickr.com/5/4071/4590447884_edcfbd0153_z.jpg], [https://c1.staticflickr.com/5/4063/4590447858_f08d9340a8_z.jpg]

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