Archive of Collections



Details and Image



TypeModel #.Aircraft Maker / NameInstrument MakerCountryConstructionDateScale LengthArea of Use
Disk
DR-2 (Dreieckrechner)
Generic Instrument Part # 127-107 A-2Dennert & Pape for the WWII German Luftwaffe
Germany
Metal & PlasticFeb-40Dia. = 15 cmFlight Management

Comment: "1) Used to solve wind triangle problems as well as time, distance, speed, tempeature corrections etc. 2) Used in WWII in the German Airforce 3) An extensive paper describing this slide rule can be found on the internet by Ronald van Riet ""Knemeyer Dreieckrechner"""


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