| Year | 1948 |
| Date | 17-Jun |
| Volume | 98 |
| Issue | 2,456 |
| Page | 646 |
| Category | Nautical |
| Part | |
| Title | A Radio-Controlled Launch |
| Author | R.M.Cooper |
| Notes | Circuit diagram of control transmitter, transmitter alignment, plan view of boat, transmitter with batteries in carrying case, curve of P.A. current against oscillator anode tuning, auto-pilot and servo-cock, circuit diagram, the delay relay |