Hornby S4282 Weight & S1180 Fitting Screws - R061 / R063 Tender Drive Unit. Please find for sale a S4282 tender weight and fitting screws. Originally from a R063 Britannia motor tender made around 1976. In good used condition. Please see Hornby Service Sheet No. 98 A for more information. Please see all photos to help with condition. Please see Badrocks Model Trains eBay shop for more listings. Thanks for looking.