| 词条 | Scaled Composites Model 367 BiPod | ||||||||||
| 释义 |
The Scaled Composites Model 367 BiPod is an experimental flying car developed by Scaled Composites. It was the final aircraft designed by Burt Rutan prior to his retirement.[1] DevelopmentThe Bipod was originally designed to be an electric propulsion testbed, later evolving into the flying car concept. The vehicle was constructed for market evaluation and testing only. No flight testing was planned, or done, on the single prototype built.{{citation needed|date=October 2013}} DesignThe BiPod uses twin fuselages with tandem wheels joined together by a wing surface. The wings, stabilizers and tail tips are removable for road operations. The left cockpit is configured for road operations (i.e. it is driven as a car from the left-hand station), the right cockpit is configured for air operations (i.e. it is flown from the right-hand station). The wingspan of nearly 32 feet (9.7 m) is reduced to 7.9 feet (2.4 m) when the wings are removed (they can be carried between the two fuselage sections during road operation).[2] Thus the vehicle can be parked in a regular-sized garage stall when the wings and tail surfaces have been removed. PropulsionEach fuselage section has a 450cc gasoline engine, which drives an electric generator. The generators power 15 kW electric motors; two such motors drive the rear wheels for land use, and four such motors drive four propellers (two on the horizontal stabilizer and two on the wings).[3] Although not installed to date (July 2011), the testbed configuration will eventually incorporate rechargeable lithium batteries for additional power during takeoff or for extra climb performance.[4] In addition, as of the first flight the propellers and propeller drive motors had not been installed; the "flights" consisted of brief hops above a runway after the drive wheels had been used to accelerate the vehicle to {{convert|80|mph|km/h|abbr=on}}. Operational historyThe prototype was built in four months. "In anticipation of Rutan's retirement, Scaled Composite employees scrambled to get the new design flying in March of this year, only four months after its preliminary design phase." [1] Test hops have been performed with the prototype at Mojave Air and Space Port using propulsion from the wheels. The vehicle has been ground tested up to 80 mph. No flight testing is planned. Specifications (Scaled Composites Model 367 BiPod){{Aircraft specs|ref=Aviation Week and Space Technology |prime units?=kts |crew=1 |capacity=2 |length m= |length ft= |length in= |span m= |span ft=31 |span in=10 |span note=7ft 11inches in roadable configuration. |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=1430 |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |fuel capacity= |more general=1.2kwh lithium battery |eng1 number=2 |eng1 name= |eng1 type=450cc internal combustion |eng1 kw= |eng1 hp= |eng1 note=Engines turn electrical generators |eng2 number= |eng2 name= |eng2 type= |prop name= |prop dia m= |prop dia ft= |prop dia in= |prop note=Driven by 15Kw motors |max speed kmh= |max speed mph=200 |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph= |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= |minimum control speed kmh= |minimum control speed mph= |minimum control speed kts= |minimum control speed note= |range km= |range miles=530 |range nmi= |range note=760miles @100mph in air, 820 miles on land, 35 miles on land with battery |ceiling m= |ceiling ft= |ceiling note= |g limits= |roll rate= |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= |avionics= }} References1. ^1 {{cite journal|magazine=Aviation Week and Space Technology|title=Scaled Composites Unveils Hybrid Flying Car Prototype|date=18 July 2011}} 2. ^{{cite web|title=Rutan's Final Design|url=http://eaa.org/news/2011/2011-07-17_RutanBiPod.asp|accessdate=18 July 2011|deadurl=bot: unknown|archiveurl=https://web.archive.org/web/20130226091338/http://eaa.org/news/2011/2011-07-17_RutanBiPod.asp|archivedate=26 February 2013|df=}} 3. ^"The use of electric power transmission decouples engine location from propeller location without the need for mechanical shafts and gear boxes, enabling BiPod's unique geometry." (Scaled Composites press release, reported in Flying{{citation needed|date=September 2013}}) 4. ^Pia Bergqvist, Rutan's Swan Song: A Flying Car, Flying, September 2011, p. 20 External links
8 : Scaled Composites|Roadable aircraft|Hybrid vehicles|Twin-fuselage aircraft|Rutan aircraft|Twin-engined four-prop tractor aircraft|High-wing aircraft|Aircraft first flown in 2011 |
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