Stepping down a few scales, I managed to slip in an evening or so’s work on a the BT tanks project … and completed the BT5A …
This is, of course, the big artillery turret more commonly found on the model 7 chassis (but I have been doing some work on the earlier chassis) …
In this case I have cut through the flattened back QRF tub in order to model the driver’s hatched open. And I have taken the tracks off to show the tank ‘converted’ for driving on the road wheels. The driver is using the detachable steering wheel as opposed to the levers necessary in tracked mode.
So … the hull and tracks are QRF, the turret is fabricated around a Zvezda former. The driver is Battlefront with a PP Russian tanker head, and the guns are also BF (the 76.2mm regimental howitzer is a spare from the T28 model which I assembled with the later L10 gun option).
Of course, part of this conversion job includes slimming down and spacing out the oversized wheels that come with the QRF model. The easiest way to do this now is to pinch them from the Zvezda BT5 – however in this case I have separated them off, turned them down and them spaced them more accurately … You can see the difference in the photo below:
On the left, the Zvezda track component is pretty much spot on. On the right, the QRF one has wheels that are too big and evenly spaced. This is important to the design – the rear pair support the weight of the engine, the more independent spacing of the front pair allow the vehicle to be steered in road mode. Hopefully the artillery tank shows a reasonable modelling compromise.
I will update the modelling page with some pictures of the conversion process and options when I have completed the other family member on the table at the moment (an experimental version with Katyusha rockets …)..
For game purposes … in PBI (company level) the behaviour is the same as other BT5s except the gun is a 76.2mm IG (high explosive rounds) … in NQM/Megablitz, the model can stand in for standard, command or SP armoured units.