D. Wahlers Company, INC. (Now Ahlers Aerospace, INC.)
Named as the FAA publishes it on its approvals.
Approved to make 8 classes of equipment. FAA spelling: D. Wahlers Company, Inc. (now Ahlers Aerospace, Inc.).
Equipment approvals technical standard order authorisations
2004-04-07TSO-C43 · Temperature Indicators · *, *, * · other and general
2004-04-07TSO-C44 · Fuel Flowmeters · * · other and general
2004-04-07TSO-C44b · FUEL FLOWMETERS · Fuel Press/Flow Indicator · instruments and avionics
2004-04-07TSO-C55 · FUEL AND OIL QUANTITY INSTRUMENTS (RECIPROCATING ENGINE AIRCRAFT) · *, *, * · engine
2004-04-07TSO-C47 · PRESSURE INSTRUMENTS - FUEL, OIL, AND HYDRAULIC · Engine Oil Temp/Press Indicator, *, * · engine
2004-04-07TSO-C49 · Electric Tachometer: Magnetic Drag (for Air Carrier Aircraft) · *, *, * · other and general
2004-04-07TSO-C43c · TEMPERATURE INSTRUMENTS · Engine Oil Temp/Press Indicator, Temperature Indicator/Monitor, * · engine
2004-04-07TSO-C49b · ELECTRIC TACHOMETER: MAGNETIC DRAG (INDICATOR AND GENERATOR) · Temperature Indicator/Monitor, Tachometer Indicator/Monitor, * · instruments and avionics
Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.