50015 Valiant approaches Chinnor on 7 April 2025 with the 12:30 Princes Risborough to Chinnor service, during the Chinnor & Princes Risborough Railway's 'Class 50 Mileage Day. The train had unexpectedly stopped just out of sight, between here and Wainhill, and so Valiant was making quite a racket here as it picked up speed again.