Rubber
These posts discuss the properties of rubber, the selection, sizing, making and handling of rubber motors.
Rubber Motor Size and Performance
AMA Alpha Motor Turns – Energy for Flight
Rubber Motor Formulas
Model Airplane Suppliers
My 1979 Torque Meter
Student Data Sheet: Energy for Flight
The Energy of Flight
Matching Motor and Propeller to Airplane
Maximum Turns Formula for Braided Rubber Motors
Penaud Planophore Review
Cloud Tramp Propeller Tests
Calibrating the Harlan Rubber Stripper
Rubber Motors
Making a Rubber Motor
Rubber Motor Turns Tables Formula