Electric Motors and Controllers for Use in ... - CAFE Foundation

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As with all generalities, my outline is subject to occasional excursions into areas of related interest, if not strict adherence to the categories shown. San Carlos, April 24, 2009 6
Following a heart attack in April, 2004, I had time to recuperate and engage in leisure reading. On a trip not authorized by my doctor, I had my daughter Beth drive me to a favorite magazine shop in Portland, Oregon, where I purchased the current edition of Quiet Flyer, which featured Rob Honeycutt’s amazing Extra 330L. I was able to deduce that a 28-pound airplane that could hover had to be putting out at least 28-pounds of thrust. It turned out to be better than that, and I was able to conceive that these little model electric motors could power a sustainer power pack for sailplanes. Assuming a 524 pound AUW sailplane with even a modest 25:1 lift to drag ratio, it would require only 20.96 pounds of thrust to maintain altitude at its best l/d speed. San Carlos, April 24, 2009 7
Page 1 and 2: This is my presentation for the Thi
Page 3 and 4: “The many experiments made during
Page 5: This book, a compilation of article
Page 9 and 10: Most model motors in the size range
Page 11 and 12: “The servo signal is a simple dig
Page 13 and 14: Inrunners tend to be more efficient
Page 15 and 16: Plettenberg has an interesting spin
Page 17 and 18: The DMSV (Deutscher Motorschirm Ver
Page 19 and 20: Installed on the PAP1400 powered pa
Page 21 and 22: This simple operational drawing of
Page 23 and 24: This cutaway of a Lynch Motor shows
Page 25 and 26: Randall Fishman won best new design
Page 27 and 28: Mark Brierle pulled into Tehachapi,
Page 29 and 30: APAME and ACV are now working on th
Page 31 and 32: Patrick McLaughlin of Mountain High
Page 33 and 34: KLD Energy Technologies, located in
Page 35 and 36: Apex Drive Laboratories uses a dual
Page 37 and 38: “The controller can commutate the
Page 39 and 40: “Sicme Motori, technological part
Page 41 and 42: Combining a Rotax 914 with a motor
Page 43 and 44: This motor is promising because of
Page 45 and 46: One must consider the total cost of
Page 47 and 48: From the University of London Press
Page 49 and 50: In a discussion with Alan Fishman,
Page 51 and 52: M My friend f i d and d mentor, t M

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