The John Deere Models B, A, and G were three machines tractors in the series of consecutive models in the letter series. The B was the smallest, followed by the A, then the mighty G, which was the largest of the row crops. To make this a complete series of row crop lettered series tractors, I would simply be missing the Model M, which would be the smallest of the group of row-crop models. There was also the models D and R, which were “standards”, and not row-crop.
This video is of the John Deere G and John Deere 2010 raking alfalfa. It also has some slow-motion video. Because the large baler needs to be fed so much hay, and the hay needs to be turned to dry, we rake the two rows together. Eventually it will be nice to have a twin rake that does it both in one pass. In the meantime, this is what we have–one or two tractors that rake and roll the hay together. The slow-motion of the iPhone 5s is kind of fun to watch as well.
This video shows some hay (alfalfa) being hauled with a 1950 John Deere Model G. The model G was the largest row-crop John Deere at the time, with more CI displacement than even the 4020 at 412 (vs 404, but not near the horse power). The G was replaced by the 70, which was replaced by the popular 720 and 730 series of John Deere two-cylinder tractors. The other tractor in the video is a John Deere 4020, which loaded the bales.