TL suffix on Craven coaches

What was the meaning of the TL suffix on the Cravens coaches? For example 1508TL. I also remember some having TLA or TLB suffixes too.

Captain Chaos

This was added when the Cravens started to have their dynamos removed way, way back. TL is for train line lighting meaning the GSVs are needed to provide power for the lights.

Ah, so this would have been around the time of the Mk1 GSVs coming in? I never knew they had dynamos originally but it makes sense, considering that the Mk1s only arrived in the early 70s.

Do you know anything about TLA and TLB? I know of 1536TLB for sure.

seagoebox

TLA meant through air braked piped so it could work in air braked freight trains, for example the Cork or Galway liner mails along with the TPO's some of which also got the A suffix.
TLB on 1536 denoted the special bogie, Lentz I think from Switzerland, that was experimentally fitted to try and solve the hunting problem with the B4 bogies that used to vibrate at speed.

csd

seagoebox wrote: »

TLA meant through air braked piped so it could work in air braked freight trains, for example the Cork or Galway liner mails along with the TPO's some of which also got the A suffix.
TLB on 1536 denoted the special bogie, Lentz I think from Switzerland, that was experimentally fitted to try and solve the hunting problem with the B4 bogies that used to vibrate at speed.

Hmm, interesting. I thought the B in TLB stood for "brake" -- these were GSVs fitted with some sort of brakes or train brake controls and were used on Limerick - Waterford trains so the train guard could operate the brakes as a safety measure during the propelling movements at Limerick Junction.

Could be completely wrong though!

/csd

eejoynt

there were a number of limerick and possibly ballina based park royals with a brake valve an guage at the end. this saved having to do the brake test via the tailpiece