The Israeli Rochev & Doher Self Propelled Gun
The IDF took delivery of M109A2’s & A3’s around 1970 and were designated the Rochev (Rider) and were used in the Yom Kipper War of 1973. The Rochev’s were upgraded (except some were kept in the reserve units) by the IDF from 1993 and designated the Doher. Work was completed by 1997.
The Doher upgrades included:
Inertial Navigating System (INS), air filtering system, changes in the driver’s panel & cabin and NBC protection added. Additonal MG on the roof, electrical travel lock for the main gun, external generator, commanders hatch can now be secured in a semi open poistion, providing greater situational awareness and protection.