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About the EFO Club of southeastern Michigan, USA

the Ampeer Newsletter Monthly newsletter of the Electric Flyers Only, Inc. of southeastern Michigan, USA

Ampeer Index of Articles Starting in 1998 - updated monthly

Announcing Upcoming Electric Events latest event info for the USA & the world.

Manufacturers' and Suppliers' URLs, Addresses & Phone Numbers
Updated Nov., 2008

Articles:

EVERYTHING YOU WANTED TO KNOW ABOUT ELECTRIC POWERED FLIGHT: A Beginner's Guide, start your e-flight education here! Instructors, point prospective students to this article.

One Way of Selecting a Brushless Outrunner Electric Motor for a Radio Controlled (RC or R/C) Sport Plane or Sport Scale Plane Using ANR26650M1 (A123 Systems Nanophospate^TM lithium ion) 2300mAh Cells
Updated January '09
     Motor Kv, what it is and how to measure it.

Cubic Wing Loading: What it is and how to use it. Also known as - Wing Cube Loading, by Ken Myers
     MODEL DESIGN & TECHNICAL STUFF: WING CUBE LOADING (WCL) by by FRANCIS REYNOLDS , Model Builder - September 1989
     Aircraft Performance Parameters Revisited : WING CUBE LOADING, by Roger Jaffe, Model Builder - June 1994
     3D Wing Loadings: a Better Way to Scale Models and Compare different size models easily by Larry Renger, Dec. 1997
     CWL/WCL Calculator online from our friends at Electric Flight UK
     CWL/WCL Calculator online at Fly RC

     Keith Shaw on proper electric powered RC design, transcribed from his tech-talk to the EMFSO (Electric Model Flyers of Southern Ontario) by Martin Irvine of Kingston, Ont. in 1992. This is a timeless "How to" on designing electrically powered RC planes. It is in Adobe Acrobat .pdf format.

Keith Shaw's "Electric Sport Scale" article from the July 1987 Model Builder
edited and commented on by Ken Myers, July 1989

Keith Shaw's "The Art of Low Power Aerobatics: Maximize your performance with energy management" originally in Model Airplane News, Feb. 1996. Keith describes how to reduce drag, set up the CG properly using the "Dive" technique and get the most from your plane for the least power.

Scorpion S-4020-12 Outrunner tested - also how it was used in an Electro Flying Fusion

K2 Energy 26650 cells - another lithium iron phosphate cell

How I Have Been Zip Charging a 3S1P ANR26650M1 (2300mAh) A123 System, Inc. Pack

HXT 42-60/06 Motor Review - now known as the Turnigy TR 42-60C

Lithium Face Off: A Head-to-Head Comparison of Li-Po, M1/A123 & Emoli - also includes the effects of ambient temperature on these cells

Timing Test - demonstrates the effects of different timings on power system output

TowerPro 3520-6 #1 Motor Review - This is part of the review for the Sportsman Aviation Sport Stik 40 ARF Low Wing Review on RC Groups.

TowerPro 3520-6 #1 (second review) Motor Review - this is the second review of the same motor now being used in the Sports Aviation Ryan STA 40 ARF on RC Groups

TowerPro 3520-6 #2 part of the reivew of the Sportsman Aviation Sonic 500 25-46 ARF on RC Groups. Also contains a review of the Jeti Spin 44 ESC and Spinbox programmer. on RC Groups

TowerPro 3520-7 Motor Review

Aircraft Reviews, Construction & Conversions
E-flite T-34 Mentor RTF Notes, problems, solutions & conversion to "A123" cells - thoughts on using as an "aileron trainer"

Flite 40 Conversion of cheap low-wing ARF to e-power using a 6S1P "A123" 2300mAh pack on RC Groups.

Multiplex EasyStar RTF Assembly notes and review, includes upgrade to 2S1P "A123" 2300mAh pack

parkzone T-28 Trojan RTF Notes, problems, solutions & conversion to "A123" cells

Sportsman Aviation Sonic 500 25-46 ARF Review and conversion to e-power on RC Groups

Sports Aviation Ryan STA 40 ARF Review and conversion to e-power on RC Groups

Sportsman Aviation Sport Stik 40 ARF Low Wing Review and conversion to e-power on RC Groups.

Son of Swallow is my own design based on the Fred Reese Swallow, the precursor to the Cloud Dancer series of planes. Designed for use with a 3S1P "A123" 2300mAh pack. On RC Groups

SR Batteries Bantam Monoplane Kit Review

SR Batteries Cutie Kit Review, alternate power selection, upgrade to AcroPro and brushless power system