Radio Controlled Soaring Digest August 2004 Issue
Issue Contents:
JR aerotow 2004 in Monticello IL is covered in a great photo essay. Ka Minimoa SuperCub Harbinger GC-800 Schweizer 2-33 Piper Pawnee ASH-26
Build Flat dont stretch the tape and follow the tape laydown pattern in plan. for top and bottom. CG location control throws uniform wing twist. Exponential ailerons allow smooth flight and high roll rates. Repair dents and tears and check twists after crashes.
Different contest formats are compared. Man-on-man vs. open winch. The MOM format is the fairest. Landing tasks include a patterned target landing tape and runway. LSF program is described.
Parameters to properly size horizontal and vertical stabilizers andstability indexes are described (equations given)Vh = horizontal tail volume Vv = vertical tail volumeB = Blaine Rawdons parameters for spiral stability. These parametersdont account for all factors which affect sizing. e.g. a formed horizontal stab will require less area than a slab. Vv was defined an improved vertical tail volume equation.
Pt. 5 of Diva series talks about color schemes painting covering balanceand flying the Diva. Bill recalls the various trials adjustments made.
In trimming a new 2M molded sailplane with V-tail option new models are not easily modified. DJ Aerotech has on their web page instructions for setting up V-tails for proper differential. You should have no pitch component with rudder input. 80% up and 100% down worked.
Comments on the transition to an on-line publication. Request for commentsphotos Issues up to 5 mb. e-mail address is RCSDigest@themacisp.net
The completed Diva flying wing ready to fly is shown on cover 1000 sq in.
Radio Controlled Soaring Digest August 2004 Issue
