- Current Running number:Ag239
- Original number: FM20
- TMS number: FM290
- Designed by:New Zealand Railways
- Built by:Mitsubishi Heavy Industries, Japan as FM20
- Date built:1977
- Builders diagram:Body W32500, Underframe X29500
- Current configuration: Power & Viewing van. 110kVA
- Current condition: Certified for operation on NRS.
Image: AG239 in new Steam Inc livery
- Weight in working order:32000kg
- Overall length:15902 (15metres over headstocks)
Fm 20 was amongst the first last batch of guards vans built for New Zealand Railways. The "Fm" vans were first introduced in 1977 when a batch of 73 vans were built by Mitisubishi Heavy Industries in Japan. A second batch of 50 vans was built in Korea by Daewoo Heavy Industries in 1981.
With TMS numbering FM20 became FM290. Then after being rebuilt became AG239
The Fm vans were of modular construction, hence the "m" in the classification. They had 3 removable modules placed on a very solid underframe. Each van had 2 luggage modules separated by a guards accommodation module in the centre. Each luggage module was rated for 3000Kg of luggage or parcels. The guards module has a seat and desk for the guard, seats for 4 "deadheading" crew, heater, sink, and toilet compartment. These vans had modern bogies similar to those being fitted to the "name" passenger trains of the period.
Additional spare modules were purchased by NZR with the intention of being able to quickly switch modules if any became damaged or needing repair. The objective being that the damaged module could be repaired with out the need to take the van out of service for a lengthy period.
With the removal of guards vans on freight trains (the last one ran in 1987) most of these vans became surplus. FM20 (290) was one of many that carried on in passenger service being rebuilt into AG power/luggage/viewing vans, others in way & works service and some to heritage operators.
Starting in Sept 2023 we will bigin to use this vehicle to provide enhanced facilities and improved outdoor viewing on selected trips.