Ex: 1946 TID 172, 1946 MARTELLO, 1946 TID 172, 1946 W 92, 1959 TID 172
TID-class (numbered from 1 to 183, no nr 13) (T.I.D.=Tug,Inshore and Dock)
(first 90 coal fired, next oil fired)
Registered: (GBR)ON 180470 or 180471 ???
53,59 GRT, 14,47NRT,
Loa.21,46m(19,84), B:5,30m, D:2,23m(2,40) (65.0'x17.0'x7.4')
Hull: welded steel,
Machinery: 1 scr, C2cyl by "John Dickinson & Son Ltd" at Sunderland (first 90 coal fired, next oil fired) 36bhp-220ihp
Speed: 8,5kn

TID 172
1945 -xx/11: Launched by "Henry Scarr Ltd" at Hessle (GBR) (YN S.480)
1946 -14/02: completed for the UK MOWT Ministry of War Transport, laid up (mng "Townsend Bros") (GBR flag, ON 180470 or 180471 ???, c/s GCZV)
1946 -07/05: allocated to the UK Admirlaty, Nore Command at Lowestoft (GBR), renamed MARTELLO
1946 -11/07: reverted to TID 172
1946 -20/10: allocated to civil engineer in chief at Chatham (GBR), redesignated W 92 (last steam tug in service at Chatham Dockyard)
1959 -11/07: reverted to TID 172
1967: used as relief small tug, between 1967-1973 leased for +/- 2years to the Dutch Navy
1973 -09/07: To shipbreakers "T.W. Ward Ltd Columbia Wharf", Grays, Essex (GBR)
1973 -04/08: resold for preservation to B. Pearce at Maldon, Essex (GBR), rebuilt with stripped parts from TID 107
1975: first restauration, laid up in Ipswitch Wet Dock (GBR), involving the preservation group
1978: To Mr. Albert Groom at Ipswich for preservation
1983 -23/04: explosion in after accomodation during winter lay up, repaired at Ipswich Ship Repair Yard
1988 -23/01: Albert Groom dies, TID 172 sold to preservation group "Steam Tid Ltd" at Ipswich, sponsored by "Norfolk, Essex and Suffolk Training Services Ltd", accomodated as training-centre for engineers and trainees
1989: wheel house destroyed by gale, new one built
2005: Still in existence
Read more here

I cant resist to say A beutiful serie of tugs.
Rgds/Immen