Coil modeling tool

Inductance Calculator (ver 0.1) - Abandoned Freeware

ELF Loop Antenna modeling tool

RJELOOP3 (ver 17th December 1997) - Abandoned Freeware

HF Antenna modeling tool

Ariel (ver 3.01) - Abandoned Freeware

Yagi Antenna modeling tool

Quickyagi (ver 4.0) - Abandoned Freeware


Ocular Lens modeling tool

Eyepiece (ver 2.03) - Abandoned Freeware


Logic Circuit modeling tool

LogicLab (ver 25-Jul-2011) - Abandoned Freeware

Lorenzian Waterwheel modeling tool

Lorenzian Waterwheel (ver 23-Oct-2003) - Abandoned Freeware


Bicycle Gear Ratio modeling tool

Gear (ver 1.0) - Abandonware

Rocket Ballistics modeling tool

Water Rocket Performance Modeler (ver 2001 Paul Grosse) - Abandoned Freeware

Car Acceleration modeling tool

CarTest (ver 4.5) - Shareware made Abandoned Freeware