A former VNAF A-37B now on display in a museum Krakow, Poland. A-37B 68-7916 and F-5E 73-0852 (c/n R.1033) arrived to Poland in late 1977. Polish engineers were to help Vietnamese making manuals and documentation for those two types. Aircraft delivered were airworthy, some pilots even wanted to fly, but it was only allowed to taxi. Both were then totally dismantled and analysed. There were plans to replace some of it's equipment with soviet equivalents, but this idea was soon abandoned due to technological problems - F-5 was quite advanced aircraft at that time. There was not much to change, but Polish engineers have learnt a lot, and used this knowledge later constructing new aircraft. After trials both A-37 and F-5 were left in hangar of Military Technical Institute, slowly become just incomplete airframes, and during 90s made their way to Krakow museum, where they are present until now.(photo: ?)