This version of Newton Aviator works on all Newton devices.
Another version that's optimized for Newton 2.0
OS is available for downloading.
In order to install any of these Newton packages onto your Newton from your Mac or PC, you'll need some connectivity software, available free from Apple.
You should download the application, the quick reference guide, plus one or more airport databases. You may also wish to download the Daylight application, which controls the flag for daylight savings time on your Newton.