Pressure Altitude Calculator for Rolls Royce Dart 534-2 Engine (NOS) Short Sunderland Flange diameter

Flange diameter

landing of gliders and maintaining airborne supply operation to isolated positions

This example is marked AF USARMY on its face and had a serial number prefix of AF-42

see photo of the page from the manual describing its operation

Pressure Altitude Calculator for Rolls Royce Dart 534-2 Engine (NOS) Short Sunderland Flange diameterThis is an interesting little gizmo. It is labeled as an "indicator" for use with the Rolls Royce Dart 534 2 Turboprop engine in 1971. This description is from a knowledgeable visitor, Allen in Canada: "It is used to calculate the fuel trim setting for the particular temperature and pressure altitude. You align the current temperature with the pressure altitude of the airport. Then read the fuel trim setting to be used for takeoff." The Dart engine