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Home > Articles & Tips Index > Model Design

This section of the site contains articles contributed by our members and anyone else we can cajole into contributing!  If you have an idea that you think others might benefit from, please click here to email webmaster "at" charlesriverrc.org.

General

• Aerodynamics Bookshelf (if you are interested in learning about aerodynamics theory, then these books are a good place to start)

• An Aircraft Design Story
• Dan Griscom's Easy Linkage Designer (a quick way to figure out linkage geometry without CAD software)
• Simple Physics and Dimensions for Hi-Starts (an analysis of optimum hi-start dimensions and an approach for estimating launch height for different designs)
• How to Calculate Moment of Inertia for an "Odd-Shaped Object"
• Scale Speed for Small Aircraft

Software

• Joe Wurts' Vacuum Bagging Layup Calculation Spreadsheet
• Helmut Lelke's Design Analysis Program
• Martin Brungard's Equivalent Dihedral Angle Calculator Spreadsheet (53 kB Excel workbook file)
• Sailplane Calc (May 4, 2005 version - a compilation of sailplane design and component sizing calculators by Curtis Suter - 208 kB Excel workbook file)

Wing Planform and Structure

• An Extended Discussion on Roll Control and Stability (a good review of aerodynamics of roll control and stability, with commentary on various postings on RCSE on the topic)
• Aspect Ratio vs. Drag (a quick writeup on the interaction of aspect ratio and model size)
• Aspect Ratio Optimization (an answer to the question "is there an optimum AR" by Gavin Botha)
• Quick Spar Strength Estimation (Oliver Wilson's method for doing "quick and dirty" estimates of spar strength - with some simplifying assumptions - without finite element analysis)
• Scale Speed for Model Aircraft (a technical analysis of how to attain scale velocity for small models)
• Zoom Proof RES Wings (a writeup by Oliver Wilson on how to build a zoom-proof RES wing without exotic ingredients)

Airfoils

• Don Ayers' High Speed Airfoils (Don's A-series and D-series designs)
• Dr. Selig's Comments on the 7035/7037 series airfoils
• Mark Drela's HT12, HT13 and HT14 sailplane tail airfoils
• Thoughts on 7035 vs. 7037 airfoils (comments by Martin Brungard on flying characteristics of the 7035 and 7037 airfoils)
• Effect of Camber Change on the 7035 airfoil (another contribution by Martin Brungard on 7035 aerodynamics)
• 7035 Psyko Camber/Reflex Setup (notes from John Roe on his preferred setup for camber and reflex with the 7035)

Tail Design and Structure

• An Extended Discussion on the Design of V-Tails (a series of emails to RCSE by various designers)
• Conventional vs. V-Tails (a series of email comments and responses from RCSE on the topic)
• Quick V-Tail Sizing (a quick way to calculate an approximate v-tail based on a known normal tail sizing)
• V-Tail Adverse Yaw (a commentary by Don Stackhouse on adverse yaw effects of v-tails)

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