house pennant, rather than the management-mandated Steam Packet one. Later as a continued sign of protest against the takeover the crew changed this to half of a Manx Line pennant. It was initially intended that she would be retired from Manx service following the amalgamation of Sealink-Manx Line and The Steam Packet. Services would be concentrated on the Heysham-Douglas route with a strengthened two-ship service using the larger Mona's Isle (VI) and Antrim Princess. After over 150 years of uninterrupted service, the Steam Packet's year-round Liverpool-Douglas services were to be abandoned. In the event, trade union problems delayed the transfer of Antrim Princess from Stranraer, while Mona's Isle proved unserviceable. Instead Mona's Isle was withdrawn after six months and Manx Viking remained for another season. Manx Viking was eventually replaced by the cargo-only roll-on/roll-off vessel leaving - the by now renamed - Tynwald (VI) as the only passenger vessel on the route. In so doing the combined company avoided an expensive charter as the otherwise surplus Peveril was owned by the Steam Packet, not leased and had just been released from charter on the Heysham-Belfast route. The changes in manning brought about by the Manx Viking withdrawal, and Peverils route transfer were some of the centres of dispute of the 1980s British national seamen's strikes. If Manx Viking had been withdrawn as originally intended, she would have been transferred to Weymouth, Dorset and renamed Earl Henry for service on the route to Cherbourg. This never took place due to the delayed availability of the Antrim Princess. Norwegian service Following Manx Viking’s sale to Det Stavangerske Dampskibsselskap, she was reported to have developed severe engine problems, in so doing creating financial difficulties for her owners. She was sold on after only one year. This may have been a recurrence of the crankshaft problems she has been reported to have suffered while in Sealink-Manx Line service. Canadian service MS Nindawayma’s decommissioning from Canadian service after four years of use is said to have been due to "unsatisfactory performance". There was a distinct smell of diesel fuel at deck level, possibly due to her low-set twin funnels. (Photos of her in Canadian service show that the funnel-top smoke deflectors had been removed.) Her French Pielstick diesel engines were apparently troublesome, and sailings were canceled due to mechanical problems. Her bow and stern doors were claimed to not be high enough to accommodate semi-trailer