Mark D. Maughmer (born January 18, 1950) is a professor of

Aerospace Engineering Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecraft. It has two major and overlapping branches: aeronautical engineering and astronautical engineering. Avionics engineering is si ...

in the Department of Aerospace Engineering at

The Pennsylvania State University The Pennsylvania State University (Penn State or PSU) is a Public university, public Commonwealth System of Higher Education, state-related Land-grant university, land-grant research university with campuses and facilities throughout Pennsylvan ...

. He is a widely published author known throughout the world as one of the leading aerodynamicists, especially in the areas of airfoil and

winglet Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft' ...

design and analysis,

wing A wing is a type of fin that produces lift while moving through air or some other fluid. Accordingly, wings have streamlined cross-sections that are subject to aerodynamic forces and act as airfoils. A wing's aerodynamic efficiency is expres ...

optimization, natural

laminar flow In fluid dynamics, laminar flow is characterized by fluid particles following smooth paths in layers, with each layer moving smoothly past the adjacent layers with little or no mixing. At low velocities, the fluid tends to flow without lateral mi ...

aerodynamics, and subsonic, low

turbulence In fluid dynamics, turbulence or turbulent flow is fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to a laminar flow, which occurs when a fluid flows in parallel layers, with no disruption between ...

wind-tunnel Wind tunnels are large tubes with air blowing through them which are used to replicate the interaction between air and an object flying through the air or moving along the ground. Researchers use wind tunnels to learn more about how an aircraft ...

design and operation.

Winglets

In 1987,

Peter Masak Peter C. Masak (August 17, 1957 – May 22, 2004) was an engineer, inventor, and glider pilot. He graduated with a Bachelor of Applied Science degree in mechanical engineering in May 1981 from the University of Waterloo, Ontario, Canada. He ear ...

called on Maughmer about designing

s for his

sailplane A glider or sailplane is a type of glider aircraft used in the leisure activity and sport of gliding (also called soaring). This unpowered aircraft can use naturally occurring currents of rising air in the atmosphere to gain altitude. Sailplan ...

to improve performance. Others had attempted to apply

Richard T. Whitcomb Richard Travis Whitcomb (February 21, 1921 – October 13, 2009) was an American aeronautical engineer who was noted for his contributions to the science of aerodynamics. Biography Whitcomb was born in Evanston, Illinois. His father, who had ...

's NASA winglets to gliders, and though they did improve climb performance, this did not offset the parasite drag penalty in high speed cruise. Masak was convinced it was possible to overcome this hurdle, and Maughmer was willing to join his quest. By trial and error, they ultimately developed successful winglet designs for

gliding competitions Some of the pilots in the sport of gliding take part in gliding competitions. These are usually racing competitions, but there are also aerobatic contests and on-line league tables. History of competitions In the early days, the main goal wa ...

, and at the 1991

World Gliding Championships The World Gliding Championships (WGC) is a gliding competition held every two years or so by the FAI Gliding Commission. The dates are not always exactly two years apart, often because the contests are sometimes held in the summer in the Southern ...

Uvalde, Texas Uvalde is a city and the county seat of Uvalde County, Texas, United States. The population was 15,217 at the 2020 census. Uvalde is located in the Texas Hill Country, west of downtown San Antonio and east of the Mexico–United States bord ...

, the trophy for the highest speed went to a winglet equipped 15-meter class limited wingspan glider, exceeding the highest speed in the unlimited span Open Class, an exceptional result. The winglets were originally retrofit to production sailplanes, but now most high-performance gliders are equipped from the factory with winglets, or some other wingtip device. Maughmer has consulted with German sailplane designers on winglets, non-planar wing tips, and other aerodynamic improvements incorporated in several production sailplanes.

Education and academics

He received his

Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is ...

(Aeronautical and Astronautical Engineering) from the

University of Illinois The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the University ...

in 1983,

M.S. A Master of Science ( la, Magisterii Scientiae; abbreviated MS, M.S., MSc, M.Sc., SM, S.M., ScM or Sc.M.) is a master's degree in the field of science awarded by universities in many countries or a person holding such a degree. In contrast to ...

from

Princeton University Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest ins ...

in 1975 and

B.S. A Bachelor of Science (BS, BSc, SB, or ScB; from the Latin ') is a bachelor's degree awarded for programs that generally last three to five years. The first university to admit a student to the degree of Bachelor of Science was the University ...

from the

in 1972. Maughmer received the PSES Outstanding Teaching Award in 1993, the PSES Premier Teaching Award in 2001, and the Alumni Faculty Teaching Fellow Award in 2012. In 2009, Maughmer received the ASEE Fred Merryfield Design Award, a national award for teaching excellence in engineering design. He is active in the AIAA and has served on the Aircraft Design Technical Committee (1987–90). He received the AIAA/ASEE John Leland Atwood Award in 2013, and the AIAA William T. Piper Award in 2014. For the Soaring Society of America, he is chair of configuration and design for the Technical Board, serves on the board of directors for the Collegiate Soaring Association, and received the society's Exceptional Service Award in 1991. He has served on the Board of the International Organization for the Science and Technology of Soaring (OSTIV), and is currently the vice-president of that organization. He is also a

glider Glider may refer to: Aircraft and transport Aircraft * Glider (aircraft), heavier-than-air aircraft primarily intended for unpowered flight ** Glider (sailplane), a rigid-winged glider aircraft with an undercarriage, used in the sport of glidin ...

pilot and a

flight instructor A flight instructor is a person who teaches others to operate aircraft. Specific privileges granted to holders of a flight instructor qualification vary from country to country, but very generally, a flight instructor serves to enhance or evaluate ...

with the Penn State Soaring Club.

Selected Publications

* Kody, F., Corle, E., Maughmer, M., and S. Schmitz. 2016. Higher-Harmonic Deployment of Trailing-Edge Flaps for Rotor-Performance Enhancement and Vibration Reduction. Journal of Aircraft Vol. 53(2) pp. 333–342. * Coder, J. G. and M. D. Maughmer. 2014. CFD Compatible Transition Modeling Using an Amplification Factor Transport Equation. AIAA Journal Vol. 52(11) pp. 2506–2512. * Coder, J.G., Maughmer, M.D., and D. M. Somers, D.M. 2014. Theoretical and Experimental Results for the S414, Slotted, Natural-Laminar-Flow Airfoil. Journal of Aircraft Vol. 51(6) pp. 1883–1890. * Cole, J.A., Vieira, B.A.O., Coder, J.G., Premi, A., and M.D. Maughmer. 2013. An Experimental Investigation into the Effects of Gurney Flaps on Various Airfoils. Journal of Aircraft Vol. 50(4) pp. 1287–1294. * Bramesfeld, G. and M. D. Maughmer. 2008. A Free-Wake, Lifting-Surface Model Using Distributed Vorticity Elements. Journal of Aircraft Vol. 45(2) pp. 560–568. * Maughmer, M., Lesieutre, G., and M.P. Kinzel. 2007. Miniature Trailing-Edge Effectors for Rotorcraft Performance Enhancement. Journal of the American Helicopter Society Vol. 52(2) pp. 146–158. * Bramesfeld, G., Maughmer, M.D., and S. M. Willits. 2006. Piloting Strategies for Controlling a Transport Aircraft after Vertical-Tail Loss. Journal of Aircraft Vol. 43(1) pp. 216–225. * M.D. Maughmer. 2003. The Design of Winglets for High-Performance Sailplanes. Journal of Aircraft Vol. 40(6) pp. 1099–1106. * Maughmer, M.D., Swan, T.J., and S. M.Willits. 2002. The Design and Testing of a Winglet Airfoil for Low-Speed Aircraft. Journal of Aircraft Vol. 39(4) pp. 654–661. * Selig, M.S., Maughmer, M.D., and D. M. Somers. 1995. A Natural Laminar Flow Airfoil for General Aviation Applications. Journal of Aircraft Vol. 32(4) pp. 710–715. * Dini, P. and M. D. Maughmer. 1994. A Locally Interactive Laminar Separation Bubble Model. Journal of Aircraft Vol. 31(4) pp. 802–810. * Maughmer, M., L. Ozoroski, D. Straussfogel, and L. Long. 1993. Validation of Engineering Methods for Predicting Hypersonic Vehicle Controls Forces and Moments. Journal of Guidance, Control and Dynamics Vol. 16(4) pp. 762–769. * Selig, M. S., and M. D. Maughmer. 1992. Generalized Multi-Point Inverse Airfoil Design. AIAA Journal, Vol. 30(11) pp. 2618–2615. * Dini, P., M. S. Selig, and M. D. Maughmer. 1992. A Simplified Transition Prediction Method for Separated Boundary Layers. AIAA Journal Vol. 30(8) pp. 1953–1961. * Maughmer, M. D., and D. M. Somers. 1989. Design and Experimental Results for a High-Altitude, Long-Endurance Airfoil. Journal of Aircraft Vol. 26(2) pp. 148–153. * Ormsbee, A.I. and M. D. Maughmer. 1986. A Class of Airfoils Having Finite Trailing Edge Pressure Gradients. Journal of Aircraft Vol. 23(2) pp. 97–103. * Ormsbee, A.I., Bragg, M.B., Maughmer, M.D., and F.L. Jordan. 1981. Scaling Wake-Particle Interactions for Aerial Applications Research. Journal of Aircraft Vol. 18(7) pp. 592–596.

References

External links

Prof. Maughmer's page
at Penn State
About Winglets
paper by Mark D. Maughmer * paper by Mark D. Maughmer and Peter J. Kunz {{DEFAULTSORT:Maughmer, Mark D Aerodynamicists Pennsylvania State University faculty 1947 births Living people