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词条 Vertical Hummingbird
释义

  1. Design and development

  2. Variants

  3. Specifications (Hummingbird 260L)

  4. References

  5. External links

name=Hummingbird image=VAT Hummingbird 260l (8420613276).jpg caption=

}}{{Infobox Aircraft Type

 type=Helicopter national origin=United States manufacturer=Vertical Aviation Technologies designer= first flight= introduced=1991 retired= status=In production (2013) primary user= more users= produced= number built= program cost= unit cost= US$138,600 (2011) developed from= Sikorsky S-52 variants with their own articles=
}}

The Vertical Hummingbird is an American helicopter, produced by Vertical Aviation Technologies of Sanford, Florida that was introduced in 1991. The aircraft is supplied as a kit for amateur construction.[1][2]

Design and development

The Hummingbird is a development of the certified Sikorsky S-52 that first flew in 1947, adapted to kit form. The aircraft features a single main rotor, a four-seat enclosed cabin, quadracycle landing gear and a choice of two powerplants.[1] The prototype was converted by Vertical Aviation Technologies from a Sikorsky S-52-3.[4]

The Hummingbird fuselage is made from riveted aluminum sheet. The nose section is adapted from the Bell 206. Its {{convert|33|ft|m|1|abbr=on}} diameter fully articulated three-bladed main rotor employs a NACA 0015 airfoil. The two-bladed tail rotor has a diameter of {{convert|5.75|ft|m|1|abbr=on}}. The aircraft has an empty weight of {{convert|1850|lb|kg|0|abbr=on}} and a gross weight of {{convert|2800|lb|kg|0|abbr=on}}, giving a useful load of {{convert|950|lb|kg|0|abbr=on}}. With full fuel of {{convert|57|u.s.gal}} the payload is {{convert|608|lb|kg|0|abbr=on}}.[1][3][4]

Variants

VAT S-52-3
Prototype of the Hummingbird family, converted from an original Sikorsky S-52-3.[5]
Hummingbird 260L.

Version powered by a six cylinder, air-cooled, four-stroke, dual-ignition {{convert|265|hp|kW|0|abbr=on}} Lycoming IVO-435 engine[4]

Hummingbird 300LS

Version powered by an eight cylinder, liquid-cooled, four-stroke, single-ignition {{convert|325|hp|kW|0|abbr=on}} General Motors LS7 V-8 automotive conversion engine, derated to {{convert|280|hp|kW|0|abbr=on}}[6]

Specifications (Hummingbird 260L)

{{Aircraft specs
|ref=Bayerl and Vertical Aviation[1][4]
|prime units?=imp


|genhide=
|crew=one
|capacity=three passengers
|length m=
|length ft=
|length in=
|length note=
|width m=
|width ft=5
|width in=0
|width note=
|height m=
|height ft=8
|height in=7
|height note=
|airfoil=NACA 0015
|empty weight kg=
|empty weight lb=1850
|empty weight note=
|gross weight kg=
|gross weight lb=2800
|gross weight note=
|fuel capacity={{convert|57|USgal|impgal l}}
|more general=


|eng1 number=1
|eng1 name=Lycoming IVO-435
|eng1 type=six cylinder, air-cooled, four stroke aircraft engine
|eng1 kw=
|eng1 hp=265
|rot number=1
|rot dia m=
|rot dia ft=33
|rot dia in=0
|rot area sqm=
|rot area sqft=
|rot area note=


|perfhide=
|max speed kmh=
|max speed mph=
|max speed kts=
|max speed note=
|cruise speed kmh=
|cruise speed mph=100
|cruise speed kts=
|cruise speed note=
|never exceed speed kmh=
|never exceed speed mph=120
|never exceed speed kts=
|never exceed speed note=
|range km=
|range miles=375
|range nmi=
|range note=
|endurance=
|ceiling m=
|ceiling ft=14000
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=950
|climb rate note=at {{convert|2800|lb|kg|0|abbr=on}}
|time to altitude=
|disk loading kg/m2=
|disk loading lb/sqft=
|disk loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=
|more performance=
|avionics=
}}

References

1. ^1 2 3 Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011–12, page 194. WDLA UK, Lancaster UK, 2011. {{ISSN|1368-485X}}
2. ^{{cite web|url = http://vertical-aviation.com/|title = Home of the four passenger Hummingbird|accessdate = 14 February 2013|last = Vertical Aviation Technologies|year = 2013}}
3. ^{{Cite web|url = http://www.ae.illinois.edu/m-selig/ads/aircraft.html|title = The Incomplete Guide to Airfoil Usage |accessdate = 14 February 2012|last = Lednicer |first = David |year = 2010}}
4. ^1 2 {{cite web|url = http://vertical-aviation.com/hummingbird-kit-helicopter/260l/|title = Hummingbird 260L |accessdate = 14 February 2013|last = Vertical Aviation Technologies|year = 2013}}
5. ^1 {{cite book |title=Jane's All the World's Aircraft 1988–89 |year=1988 |publisher=Jane's Information Group |location=London |isbn=0-7106-0867-5 |editor=John W.R. Taylor|page=495}}
6. ^{{cite web|url = http://vertical-aviation.com/hummingbird-kit-helicopter/300ls/|title = Hummingbird 300LS|accessdate = 14 February 2013|last = Vertical Aviation Technologies|year = 2013|deadurl = yes|archiveurl = https://web.archive.org/web/20130128043311/http://vertical-aviation.com/hummingbird-kit-helicopter/300ls|archivedate = 28 January 2013|df = }}

External links

{{commons category}}
  • {{Official website|http://vertical-aviation.com/}}

6 : United States sport aircraft 1990–1999|United States helicopters 1990–1999|Homebuilt aircraft|Vertical Aviation aircraft|Single-engined piston helicopters|Aircraft first flown in 1991
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