หวย2ตัวบน 2ตัวล่าง ตรงๆ งวดวันที่ 2 พฤษภาคม 2562
Aircrafts which are power-driven with two or more engines are termed to be multi engine aircrafts. If you understand the technique of operating single engine then multi engine operation won't be difficult task. During emergency situation such multi engine props can act as a remedy.
from: http://ezinearticles.com/?Multi-Engine-Prop---An-Engine-Which-Adds-Power-to-Aircraft&id=4709677
