Ok this seems to be getting mixed up
the model Matt made isnt an Autoballister (
http://ukrailrollingstock.fotopic.net/c1274142.html )
Its a High Output Ballast Cleaner usually seen with a pair of 66s *freightliner* or HOBC for short
http://uk-wagons.fotopic.net/c1592296.html
1 HOBC is usually an average of 19 YDA's with
http://uk-wagons.fotopic.net/p54136862.html that YSA and can have 66's either end. But can also be singled BUT usually due to the size being at least 30 + per consist TnT is required
Recent consist was 6Y33 1210 Bath Spa to Westbury
66584
YXA DR 92615
YXA DR 92609
YXA DR 92619
YXA DR 92606
YXA DR 92647
YXA DR 92608
YXA DR 92604
YXA DR 92612
YXA DR 92659
YXA DR 92657
YXA DR 92648
YXA DR 92618
YXA DR 92635
YXA DR 92660
YXA DR 92662
YXA DR 92661
YXA DR 92633
YXA DR 92652
YXA DR 92611
YXA DR 92601
YXA DR 92628
YXA DR 92620
YXA DR 92601
YXA DR 92628
YXA DR 92620
YXA DR 92623
YXA DR 92653
YXA DR 92650
YJA DR 78801
YJA DR 78811
YJA DR 78821
YJA DR 78831
YSA DB 979121
Hope this helps and thanks to me ole mucker Allan for the information
Jon
Me and and My shadow..........