| 词条 | Piper LBP | |||||||||||||||||||
| 释义 |
The Piper LBP was a glide bomb, or "Glomb", developed by Piper Aircraft for the United States Navy during World War II. Developed as one of three "Glomb" aircraft, the inherent limitations of the Glomb and the technology of the time, combined with difficulties encountered in testing of the prototype, led to the production contract for the LBP-1 being reduced, then cancelled, with none of the Glomb aircraft ever seeing operational service. Design and developmentDuring late 1940, a proposal was made to the United States Navy outlining a concept called "Glomb", for "glider bomb". The Glomb concept called for the construction of inexpensive gliders, that would be remotely controlled from another aircraft, to carry bombs to a target, thus reducing the risk to aircrew.[1] Glomb was intended to be towed by an ordinary carrier-based aircraft to the area of the target, where it would be released; guidance following release would be provided via a TV camera located in the nose of the glider, which would transmit its signal to a piloted aircraft, an operator then using radio control to steer the Glomb to its target.[2] Following consideration the Glomb concept was deemed to be potentially feasible, the project was given official status by the Bureau of Aeronautics in the April 1941.[1] Initial trials of Glomb involved conversions of existing gliders to remotely controlled status; these tests showed that the concept had promise, and following a design competition, three companies were awarded contracts to develop operational "Glomb" aircraft. These contracts were given to Pratt-Read, Taylorcraft, and Piper Aircraft. Piper's design, designated LBP-1, was a conventional high-wing monoplane, fitted with tricycle landing gear, and intended to carry {{convert|4000|lb}} of bombs. Although the LBP-1 was fully capable of being remotely piloted via its TV-and-radio guidance system, it retained a cockpit, allowing the aircraft to be flown by a pilot on board for training and evalulation.[1][2] Operational historyAlthough the initial contract awarded by the Navy called for the production of 100 LBP-1 Glombs, continued trials of the concept indicated that the glider's inherent low performance, combined with technical issues with the television guidance system, made the concept operationally unworkable. As a result, the LBP-1 production contract was reduced to only 35 aircraft in early 1945.[1] In June of that year, the LBP-1 program was terminated, the aircraft having been determined to have dangerous characteristics when attempting landing at loaded weights.[3] Specifications (LBP-1){{Aircraft specs|ref=[4] |prime units?=imp |genhide= |crew=One (optional) |capacity= |length m= |length ft=28 |length in=9 |length note= |span m= |span ft=33 |span in= |span note= |height m= |height ft= |height in= |height note= |wing area sqm= |wing area sqft=173 |wing area note= |airfoil= |empty weight kg= |empty weight lb= |empty weight note= |gross weight kg= |gross weight lb=6900 |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |more general= |perfhide= |max speed kmh= |max speed mph=300 |max speed kts= |max speed note=in dive |max speed mach= |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= |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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}} References{{commons category|Piper LBP}}Citations1. ^1 2 3 Parsch 2005 2. ^1 Naval Aviation News January 1946, p.19. 3. ^Friedman 1982, p.201. 4. ^Dryden, Morten and Getting 1946, p.12 Bibliography{{refbegin}}
9 : Piper aircraft|United States military gliders 1940–1949|United States bomber aircraft 1940–1949|Unmanned aerial vehicles of the United States|World War II guided missiles of the United States|Cancelled military aircraft projects of the United States|Glider aircraft|High-wing aircraft|Television guided weapons |
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