| 词条 | Niki Lightning | |||||||||||||||||||
| 释义 |
The Niki Lightning is a fully enclosed two-seater tricycle autogyro of composite construction, designed and built by Niki Rotor Aviation in Bulgaria. It was introduced in 2009[1][2] Design and developmentThe Lightning's cockpit pod accommodates a pilot and passenger in tandem. The main rotor is two-bladed, with a pre-rotator. Unconventionally the tail boom is mounted though the centre of the propeller shaft.[3] The boom may be unbolted and removed to aid access to the engine and prop.{{Citation needed|date=February 2016}} There is a choice of two very compact D-Motor engines (both liquid-cooled horizontally opposed side-valve four-strokes): either the {{convert|95|hp|kW|0|abbr=on}} 4-cylinder LF26 or the {{convert|130|hp|kW|0|abbr=on}} 6-cylinder LF39. The engine is sited behind the cockpit, driving a 3- or 4-bladed ground-adjustable pusher propeller which is coaxial with the tail boom. Although D-Motor engines are direct-drive units with no gearbox, the Lightning has a multi-belt-drive reduction system of about 3:2 ratio, resulting in a maximum propeller speed of some 2,000 rpm.{{Citation needed|date=February 2016}} This arrangement reduces drag and allows a stronger boom . Consuming some {{convert|15|l|USgal impgal|abbr=on}} of avgas per hour, the autogyro has an endurance of 4 hours, with 30 minutes reserve. Its cruise speed of {{convert|81|kn|kph mph|abbr=on}} gives the autogyro a range of over {{convert|320|nmi|km mi|abbr=on}}. It has a take-off roll of {{convert|70|m|abbr=on}}, and a landing roll of {{convert|20|m|abbr=on}}.[2] The Lightning may be flown with its side doors removed.[4] Specifications (D-Motor LF39){{Aircraft specs|ref=US distributor[2] |prime units?=met
|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 miles= |range nmi= |range note= |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance=4h with 30 min reserve |ceiling m=3000 |ceiling ft= |ceiling note= |g limits= |roll rate= |climb rate ms=5 |climb rate ftmin= |climb rate note= |time to altitude= |disk loading kg/m2= |disk loading lb/sqft= |disk loading note= |fuel consumption kg/km= |fuel consumption lb/mi= |more performance= }} See also
References1. ^{{cite web|url=http://lightningautogyro.com/index.aspx|title=Welcome - Helicopters International, LLC|work=lightningautogyro.com|accessdate=28 February 2016}} 2. ^1 2 {{cite web|url=http://lightningautogyro.com/lightning.aspx|title=Lightning Autogyro - Helicopters International, LLC|work=lightningautogyro.com|accessdate=28 February 2016}} 3. ^Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, page 196. Flying Pages Europe SARL, 2015. {{ISSN|1368-485X}} 4. ^{{cite web|url=http://nikiaviation.com/en/models/lightning/specs|title=Technical Specifications|work=nikiaviation.com|accessdate=1 March 2016|quote="If you prefer more dynamic flight experience you can just remove the composite doors and enjoy the open air cabin."}} External links
3 : Niki Rotor aircraft|Single-engined pusher autogyro|Bulgarian sport aircraft 2000–2009 |
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