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Zephyr AAM ( 72 in. / 182.9 cm )


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Zephyr AAM model airplane plan

Zephyr AAM

AAM's Zephyr AAM

The Zephyr AAM is a 72 inch all-balsa RC soarer designed by Dave Thornburg. It's a radio control soarer using a pulse radio system controlling a Babcock MK.II escapement. This Babcock escapement is powered by a rubber band that's wound before each flight. A pulse escapement is controlled with the flyer pushing a button on the transmitter once to advanced the escapement "one click", a series of button pushes returns the escapement to the starting position. Also shown on the plan is a clockwork dethermalizer which is a| clockwork mechanism which when the time is reached a rubber band is released in the horizontal stabilizer "pops up"and the airplane begins its descent.

All of this antiquated and vintage control equipment could be replaced by solid-state radio systems available today. If a modern radio control system is installed the center of gravity will need to be adjusted. Building the wings and the horizontal stabilizer appears a bit quirky at first glance but is effective and relatively easy for today's scratch builder. Launching this glider is accomplished by using a towline or a bungee launcher.

Link to this page: http://aerofred.com/details.php?image_id=94722

Details: Full Details
ID: 94722
File Size: 1.2 MB
Type: Glider
Class: Free-Flight
Use: Thermal
Motor: Not-Powered
Motor Size:Not-Powered 
Wingspan: 72 in. / 182.9 cm
Publisher: AAM
Designer: Dave Thornburg
Weight:3 Ounces
Material:Various-Wood-Types
Listing Editor: kenb
Added: 09/01/2016 03:44
Updated: 18/02/16 11:34:51pm
Corrections? Contact kenb
Need Help? Forum
Filetype: .pdfSoftware for .pdf files

Member Profile for kenb

Hello, I'm Ken Barclay

Flew first powered model airplane: 1/2A CL - 1953
Competed in AMA sanctioned events: C/L Combat, C/L Scale 1955-1961
USAF - 1962 - 1968 RC-130, RB-50, C-47, C-54, CH-56, RC-135
1st R/C: Falcon 56 with HeathKit radio
Resumed R/C: 2008 - Prefer stand-off scale (semi-scale) model airplanes

Radio-Control Airplane Scale Outdoor Various-Wood-Types

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Plan Attributes: Edit Attributes
Plan ID:94722
Keywords:Zephyr Mark II vintage 72 inch wingspan radio control soarer glider sailplane RC Small 2-ch hand-launch tow thermal slope soaring
Class:Free-Flight
Model Type:Glider
Channels:1-ch
Functions:Rudder-Escapement
Aircraft Use:Thermal
Wingspan: 72 in. / 182.9 cm
Wingspan Class:160cm-To-200cm (63in-To-79in)
Wing Position:High-Mounted-Wing
Wing Style:Eliptical
Wing Dihedral:Dihedral
Landing Gear:Skid
Motor Type:Not-Powered
Motor Size:Not-Powered 
Number of Motors:None
Weight:3 Ounces
Weight Class:75g-To-100g (1.75oz-To-3.5oz)
Material:Various-Wood-Types
Construction Skills:Novice
Pilot Skills:Novice
Publisher:AAM
Designer:Dave Thornburg
Restorer:Have you restored this Plan? Request transfer to your account
Category:PDF Bitmap Model Airplane Plans
Similar:Plans like Zephyr AAM

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