Applied explosives technology for construction and mining by Stig O. Olofsson

By Stig O. Olofsson

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In Chapter 4, the committee identifies the Air Force aircraft it found to be the best candidates for wingtip modifications. This is followed by a qualitative analysis of the relative costs and benefits of retrofitting wingtip modifications on these aircraft, as well as a discussion of appropriate strategies the Air Force should use to maximize its fuel economy investments. Additional methods that might be considered by the Air Force to improve fuel economy, such as other aerodynamic changes, improving maintenance and operations, and reducing unnecessary weight, are discussed in Appendix B.

The Air Force should support the analysis required and make the appropriate modifications as quickly as possible. There are also other ways to reduce fuel consumption, many of which have already been adopted by the commercial airlines. The committee believes it is important for these other strategies to be considered, and while they were not the focus of this study and the extent to which the Air Force may already be using some of these strategies was not examined, examples are provided in Appendix B for the reader’s benefit.

For example, a re-engine program can also improve fuel burn, operational flexibility, and takeoff performance. If the magnitude of the needed improvements is similar, the winglet solution would almost certainly be less costly. , stiffening of the wing to satisfy static and dynamic requirements) and (2) the weight of the winglets themselves. 21 Added Span and Height The height of a winglet varies but can be as great as 10-20 ft. A winglet can also increase the wingspan by several feet. These dimensions impact airfield operations such as parking, taxiing, and maneuvering the aircraft on 18Costs based on list prices and committee estimates.

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