| 词条 | Taylorcraft LBT | |||||||||||||||||||
| 释义 |
The Taylorcraft LBT was a glider designed and built by Taylorcraft during World War II, in response to a United States Navy requirement for a glide bomb. One of three prototype "Glomb" models ordered by the Navy, the LBT suffered from technical and performance difficulties, and was cancelled early in production, none of the aircraft seeing operational service. Design and developmentDuring December 1940, the United States Navy began studies of a proposed "glider bomb", which was intended to be an inexpensive, unpowered aircraft, remotely controlled from another, conventional aircraft, that would be capable of delivering bombs to an enemy target without putting aircrew at risk to the target's defenses.[1] The glider bomb, or "Glomb", would be towed by an ordinary carrier-based aircraft to the area of its target; guidance following release of the glider from its towing aircraft was intended to be provided by a TV camera located in the nose of the glider, which would transmit its signal to a piloted aircraft, an operator aboard the control aircraft using radio control to steer the Glomb to its target.[2] Following the Navy's initial evalulation, the Glomb comcept was deemed to be worth developing further, and the project was given official status by the Bureau of Aeronautics in April 1941.[1] The initial trials of the Glomb concept were conducted using conversions of existing gliders for unpiloted, remotely controlled flight; these tests seemed to indicate that the concept had promise, and a request for designs from industry was issued. Three companies were awarded contracts to develop operational "Glomb" aircraft, the contracts being given to Pratt-Read, Piper Aircraft, and Taylorcraft. The Taylorcraft design, designated LBT-1 by the Navy, was based on the company's LNT-1 training glider;[1] two XLNT-1s, converted to remote control, had been tested as part of initial Glomb trials.[2] The LBT-1 featured a high, strut-braced wing and tricycle landing gear; the aircraft was designed to carry a {{convert|2000|lb}} bomb as a warhead. In addition to its TV-and-radio remote guidance system, the LBT-1 retained a cockpit, allowing a pilot on board to fly the aircraft on training and evalulation flights.[1][3] Operational historyThe LBT-1 began evaluation by the Navy in April 1944.[2] The Navy's contract called for the production of 100 of each type of Glomb; however, by October 1944, trials were beginning to indicate that the low expected performance of the glider bomb was a liability, and the Piper LBP-1 and LBE-1 were considered superior. Accordingly, the LBT contract was cancelled; only 25 examples of the type were constructed, none of which would see any operational service.[1][4] Specifications (LBT-1){{Aircraft specs|ref=[2][5] |prime units?=imp |genhide= |crew=One (optional) |capacity= |length m= |length ft=25 |length in=2 |length note= |span m= |span ft=35 |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm= |wing area sqft=181 |wing area note= |airfoil= |empty weight kg= |empty weight lb= |empty weight note= |gross weight kg= |gross weight lb=3930 |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |more general= |perfhide= |max speed kmh= |max speed mph=314 |max speed kts= |max speed note=in dive |max speed mach= |cruise speed kmh= |cruise speed mph=240 |cruise speed kts= |cruise speed note=tow speed |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= |range nmi= |range note= |combat range km= |combat range miles= |combat range nmi= |combat range note= |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance= |ceiling m= |ceiling ft= |ceiling note= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |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= |wing loading note= |more performance=
See also{{Portal|Aviation|United States Navy|World War II}}{{aircontent||related=
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}} ReferencesCitations1. ^1 2 3 4 Parsch 2005 2. ^1 2 Trimble 1990, p.270. 3. ^1 Naval Aviation News January 1946, p.19. 4. ^Friedman 1982, p.201. 5. ^Dryden, Morten and Getting 1946, p.12 Bibliography{{refbegin}}
9 : Taylorcraft aircraft|United States military gliders 1940–1949|United States bomber aircraft 1940–1949|High-wing aircraft|Unmanned aerial vehicles of the United States|World War II guided missiles of the United States|Cancelled military aircraft projects of the United States|Aircraft first flown in 1944|Television guided weapons |
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