Does the Saab 38 and the Saab JAS 39 Gripen have a single-engine or multiple engines?
Saab 38: The Saab 38 (also known as B3LA or A 38/Sk 38) was a single-engine jet trainer and attack aircraft planned by Saab during the 1970s. Saab JAS 39 Gripen: The Saab JAS 39 Gripen (English: "griffin" ) is a light single-engine multirole fighter aircraft manufactured by the Swedish aerospace company Saab.
single-engine