| Year | 2020 |
| Date | 20-Nov |
| Volume | 225 |
| Issue | 4,652 |
| Page | 692 |
| Category | Locomotive |
| Part | 3 |
| Title | Britannia Class 7 Locomotive in 5 Inch Gauge. A Modelworks Rebuild |
| Author | Norm Norton |
| Notes | Springs and Spring Rates. Takes a renewed look at this popular, kit-built BR Standard Pacific. Oliver Cromwell on the GCR in Loughborough in 2014, design principles, four designs of spring, test frame and results, design and manufacture of Britannia main springs, idealised target weight distribution, front bogie, pony truck, wheel and axle alignment in the frames |