G17Sβ¦ only 20 GModel 17βs were ever made. 19 of them actually came out of the factory and the 20th one was assembled from left over parts in Texas. This is Serial Number B-19, the last G-17 to leave the Beechcraft factory in 1949, the last of the US Bi-Plane era- this plane is an icon! It will be heading to its new home soon.