“Cloudbuster Ultralights Cloudbuster”的意思、由来-开放百科全书

The Cloudbuster Ultralights Cloudbuster is an American ultralight aircraft that was designed and produced by the Cloudbuster Ultralights Company of Sarasota, Florida in the early 1980s. The aircraft was supplied as a kit for amateur construction.^[1]^[2]

Design and development

The aircraft was designed to comply with the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of {{convert|254|lb|kg|0|abbr=on}}. The Cloudbuster has a standard empty weight of {{convert|248|lb|kg|0|abbr=on}}. It features a strut-braced high-wing, a single-seat, open cockpit, tricycle landing gear and a single engine in tractor configuration.^[1]

The aircraft fuselage structure is made from bolted-together aluminum tubing, with a tubular keel supporting the tail, wing mounts and the engine at the front. The standard factory supplied powerplant was the Zenoah G-25B of {{convert|20|hp|kW|0|abbr=on}}. Its {{convert|37|ft|m|1|abbr=on}} span wing is braced with a single lift strut per side. The wing is of exotic mixed construction, with aluminum tubular spars, urethane foam and fibreglass wing ribs, the leading edge is vinyl-covered and the trailing edge is sheet aluminum and the whole wing finished in doped aircraft fabric covering. The pilot sits on an open seat that is not equipped with a windshield. The landing gear features main wheel suspension and a steerable nosewheel. The airframe was proof tested to +4.5/-2.25 g.^[1]

The complex wing does give the aircraft good gliding performance, achieving a 13:1 glide ratio and a minimum sink speed of 260 ft/min (1.3 m/s).

However the complexity of the wing construction lead to the commercial failure of the aircraft design and few were produced.^[1]

Specifications (Cloudbuster)

|genhide=
|crew=one
|capacity=
|length m=
|length ft=
|length in=
|length note=
|span m=
|span ft=37
|span in=
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=153
|wing area note=
|aspect ratio=8.9:1
|airfoil=
|empty weight kg=
|empty weight lb=248
|empty weight note=
|gross weight kg=
|gross weight lb=532
|gross weight note=
|fuel capacity={{convert|3.5|u.s.gal}}
|more general=

|perfhide=
|max speed kmh=
|max speed mph=60
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=50
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=25
|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 miles=135
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=10000
|ceiling note=
|g limits=+4.5/-2.25
|roll rate=
|glide ratio=13:1
|climb rate ms=
|climb rate ftmin=650
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=260
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}{{aircontent
|see also=
|related=
|similar aircraft=
|lists=
}}

References

1. ^¹²³⁴Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page E-10. Cybair Limited Publishing, 2001. {{ISBN|0-9680628-1-4}}
2. ^{{cite web|url = http://vula.org/where_are_they_now.html|title = Where Are They Now?|accessdate = 5 November 2011|last = Perkins|first = Scott, Vintage Ultralight Association|date = 2004}}

External links

3 : United States ultralight aircraft 1980–1989|Homebuilt aircraft|Single-engined tractor aircraft