Thanks for all the replies.
Lothian has 3 singles. Volvo 7905LH, (fleet 1-50), B7RLEs (fleet 1xx + 10101-10199) and B8RLEs (10051-10065). The one that was on route 1 today was a demo from Volvo, eVoRa BV19LND
Thanks, it was definitely a 7905LH that I was on. It looked like this one (note you can see the outline of the opening windows)
(Not my image)
https://www.flickr.com/photos/132899570@N04/31918578045/
What do the letters ''LH" and "RLE" (as highlighted in the quote above) mean?
I don't know about sealed/opening windows, but Longstone definitely has two types of Volvo 7900 Hybrids ....
Those with standard bell hardware and route display vdu, mounted over isle
And
Those which don't have the route display vdu mounted (though mounting hardware for the vdu is there) and they have the "tram door" bell in the buggy space with luminated green leds
Sadly I can't say which fleet numbers are which type....I also assume they were bought at different times?
1-10 are slightly different to 11-50 as they have a facelift (can easily tell them by looking at front of bus -
1-10 have no airvent slit in top of roof) however none of those have opening windows (that I know off) exc driver.
I also forgot about the electrics, so have 4 singles. Still,
the one I assume Greg was reffering to was the demo from Volvo which only started service.
https://www.flickr.com/photos/barberbus/48266451127/in/photostream/ - this is the new demo (not my picture)
Ah, I had never noticed the air vent on the roof before, thanks for pointing that out.
The bus I was meaning was definitely a 7905LH, not the new one.
The 2013 vs the 2014 models are different not just on the surface but underneath.
The 2013 ones use a Volvo D5F 4.8ltr engine/215hp E5 vs the D5K 5.1ltr engine/240hp E6 in the 2014 models.
Some of them have full air con systems but others don't..
The windows were simply removed by option for 2014.
So are numbers 1-10 all 2013 models, and 11-50 all 2014 models?
Are 1-10 usually allocated a different route to 11-50 or are they treated as a common fleet?
I assume the 2013 batch was a trial order, with 2014 being the main order. Any idea why the specification changed for 2014? Was the initial trial not successful?
Once again thanks to all who replied.