“Duane's Hangar Ultrababy”的意思、由来-开放百科全书

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Duane's Hangar Ultrababy

释义

Design and development
Operational history
Specifications (Ultrababy)
References

name= Ultrababy

image=

caption=

}}{{Infobox Aircraft Type

type=Homebuilt aircraft

national origin=United States

manufacturer=Duane's Hangar

designer=Duane Patrick

first flight=

introduced=circa 1997

retired=

status= Production completed

primary user=

more users=

produced=

number built=At least one

program cost=

unit cost= US$75.00 (plans only, 1998)

developed from= Bowers Fly Baby

variants with their own articles=
}}

The Duane's Hangar Ultrababy (sometimes Ultra Baby) is an American homebuilt aircraft that was designed by Duane Patrick and produced by Duane's Hangar of Liberty, South Carolina, introduced about 1997. When it was available the aircraft was supplied in the form of plans for amateur construction.^[1]

Design and development

The aircraft is a 75% scale version of the Bowers Fly Baby intended 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}}. It can have a sufficiently low enough empty weight for that category when a light enough engine is fitted. The Ultrababy can also be registered in the American homebuilt aircraft category.^[1]

The Ultrababy features a cantilever low-wing, a single-seat open cockpit with a windshield, fixed conventional landing gear and a single engine in tractor configuration.^[1]

The aircraft is made from wood, with its flying surfaces covered in doped aircraft fabric. Its {{convert|27.50|ft|m|1|abbr=on}} span wing lacks flaps and has a wing area of {{convert|121.5|sqft|m2|abbr=on}}. The acceptable power range is {{convert|35|to|52|hp|kW|0|abbr=on}} and the standard engine used is the {{convert|48|hp|kW|0|abbr=on}} Half VW powerplant.^[1]

With the Half VW engine the Ultrababy has a typical empty weight of {{convert|300|lb|kg|abbr=on}} and a gross weight of {{convert|620|lb|kg|abbr=on}}, giving a useful load of {{convert|320|lb|kg|abbr=on}}. With full fuel of {{convert|5|u.s.gal}} the payload for pilot and baggage is {{convert|290|lb|kg|abbr=on}}.^[1]

The designer estimates the construction time from the supplied plans as 700 hours.^[1]

Operational history

By 1998 the company reported that 40 sets of plans had been sold and one aircraft was flying.^[1]

Specifications (Ultrababy)

{{Aircraft specs
|ref=AeroCrafter^[1]
|prime units?=imp

|genhide=
|crew=one
|capacity=
|length m=
|length ft=16
|length in=0
|length note=
|span m=
|span ft=27
|span in=6
|span note=
|height m=
|height ft=
|height in=
|height note=
|wing area sqm=
|wing area sqft=121.5
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=300
|empty weight note=
|gross weight kg=
|gross weight lb=620
|gross weight note=
|fuel capacity={{convert|5|u.s.gal}}
|more general=

|perfhide=
|max speed kmh=
|max speed mph=75
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=60
|cruise speed kts=
|cruise speed note=
|stall speed kmh=
|stall speed mph=35
|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=150
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=10000
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=600
|climb rate note=
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=5.1
|wing loading note=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}

References

1. ^¹²³⁴⁵⁶⁷Purdy, Don: AeroCrafter - Homebuilt Aircraft Sourcebook, Fifth Edition, page 146. BAI Communications, 15 July 1998. {{ISBN|0-9636409-4-1}}

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