| Year | 1909 |
| Date | 15-Jul |
| Volume | 21 |
| Issue | 429 |
| Page | 50 |
| Category | Aeronautical |
| Part | |
| Title | My Experimental Work in Connection with Model Flying Machines |
| Author | E.W.Twining |
| Notes | Glider nos. 2 & 4, connection between main planes, demonstrating forward position of centre of pressure on a plane |