Delta-motorer (Järnväg allmänt)
Class 23 Baby Deltic :
https://en.wikipedia.org/wiki/British_Rail_Class_23
Stora Deltic prototypen :
https://en.wikipedia.org/wiki/British_Railways_DP1
Class 55 Deltic :
https://en.wikipedia.org/wiki/British_Rail_Class_55
Om motorn :
https://en.wikipedia.org/wiki/Napier_Deltic
mvh Rolf Berg