"SPEED With ECONOMY"
Experimental Aircraft
Performance Improvement

by Kent Paser    Read about the author

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Read about SpeedWithEconomy.com


Speed With Economy          Great ideas for most Experimental Aircraft

      Speed with Economy is a detailed account of 23 years of building, flying and modifying an experimental Mustang II that have increased the aircraft's top speed by 64 MPH, the cruise speed by 60 MPH, and the climb rate by more than 800 feet per minute. In addition, the service ceiling was improved by 8,000 feet, and the fuel consumption was reduced by 50% for economy cruise.

'Speed with Economy' Chapters include:
  • Building My Mustang II
  • The construction process (with photos), tools, jigs, departures from the plans, finishing process, additional construction features.
  • Engine Exhaust System Modifications
  • Exhaust design, crossover, exhaust nozzles, port mis-matching, anti-reversion cones.
  • Engine Intake System Modifications
  • Inlets, air filter efficiency, ram air intake, routing and cooling.
  • Engine Cooling System Modifications
  • Cylinder baffles, plenum chamber design, cowl flap, exhaust augmentation, accessory cooling.
  • Aerodynamic Cleanup and Drag Reduction
  • Gear and wheel fairings, airflow flight testing, metal and fiberglass fairings, canopy modifications, antenna drag reduction, gap seals, and numerous small but effective improvements.
  • Propeller Experimentation and Development
  • Years of challenging, frustrating and exciting propeller modifications are shared.
  • Miscellaneous Performance Improvement Modifications
  • A dozen more mods, including high compression pistons, magneto advance, removable tie down rings and engine additives.
  • Performance Improvement Results
  • Data collection and results from the different modifications.
  • Competition Results and Other Awards
  • Races flown and Kent's Oshkosh-500 Race results over the years.
  • Flying and Maintaining My Mustang II
  • Practices and Procedures to enhance the safety, reliability and fun of owning an airplane.

172 pages with 25 figures and 148 photos
$24.95 USD + shipping:
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$4.95 U.S. Priority Mail in US
$9.45 International Priority Mail to Canada or Mexico
$11.35 International Priority Mail to most other countries
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Reviews on "Speed with Economy":

Bob Bushby, Mustang II Designer:
I believe this book is great! It is something every homebuilder should read. Builders think of these improvements individually, but wonder if it is worthwhile. Seeing the total results is impressive."

Ben Owen, Executive Director of EAA Information Services and Technical Counselor Program:
"Kent Paser's 'Speed with Economy', is an excellent reference manual for the amateur builder who wants to make his airplane go faster. You will find information in this book that, so far, very few have applied and only a handful of people have experimented with. In particular, his information on engine cooling, I have seen in no other literature. Kent has provided a contribution to economical flight which should serve as a hallmark to amateur builders of the future."

Tony Bingelis, Author of several Sportplane Construction books:
"I read the book, 'Speed with Economy', and liked it. It is well written, easy to read, and most informative. Anyone who is willing to put in the effort to improve the performance of his homebuilt will find a wealth of information in this book.
[The author] did not resort to formulas and high tech mathematics to describe his experiments and explain his findings. That sort of writing, I believe, intimidates and discourages even the most dedicated homebuilder."
"Kent's determination to enhance the performance of his Mustang II is quite understandable. However, what boggles the mind is the fact that he willingly devoted more than 23 years to the performance improvement of this one airplane, making modification after modification, each carefully documented and tested."

Jack Cox, Editor-in-Chief, EAA Publications, and Editor/Publisher of Sportsman Pilot Magazine:
"Improving the breed is a hallmark of the homebuilt movement, but it is nothing short of extraordinary for a builder to increase the top speed of his aircraft a whopping 64 mph...and cut the fuel consumption in half! Equally impressive is the way it was done: by guile rather than brute force...by aerodynamic and thermodynamic refinement rather than gobs of additional horsepower."
"It was my personal pleasure to greet Kent Paser when he brought his Mustang II to Oshkosh for the first time in 1971, and it has been a continuing fascination to see him bring it back year after year with yet another round of performance improvements. With the publishing of 'Speed with Economy' the effort of all those years is compressed into a single volume that everyone can enjoy...and profit from. It's a must for anyone with a homebuilt project in their shop."
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About "SpeedWithEconomy.com":

  In July, 2004 Mustang II builder, pilot and enthusiast Rick Henry with Kent Paser's approval and encouragement started "SpeedWithEconomy.com" to make the book available for purchase online with quick order processing and minimal shipping cost. Since that time, hundreds of copies have been sold and shipped worldwide. "SpeedWithEconomy.com" has been a PayPal verified business merchant since December, 2000.

  Rick is a Captain and simulator instructor / check airman on the MD-11 domiciled in Anchorage, Alaska. He flies his Mustang II in addition to moderating the MustangAero e-mail group, maintaining his ExperimentalAirplane.com Mustang II web site and keeping in contact with Kent.

  If you have any questions or comments, please contact us at: SWE@SpeedWithEconomy.com or Rick@ExperimentalAirplane.com.

We look forward to sharing this great book with you!


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