Editing Steamboat (section)

===Vietnam===
[[File:Rocket Paddle Steamer Of Bangladesh.jpg|thumb|upright|Rocket paddle steamer off Dhaka, Bangladesh]]
Seeing the great potential of the steam-powered vessels, Vietnamese Emperor [[Minh Mạng]] attempted to reproduce a French-made steamboat.<ref>{{Cite web
|title=The Vietnamese conquer the ocean – Part 1: The thirst for steamboats
|url=http://vietnam.vn/the-vietnamese-conquer-the-ocean-part-1-the-thirst-for-steamboats-c1070n20120215144633593.htm
|archive-url=http://wayback.vefsafn.is/wayback/20130317154549/http://vietnam.vn/the-vietnamese-conquer-the-ocean-part-1-the-thirst-for-steamboats-c1070n20120215144633593.htm
|url-status=dead
|archive-date=2013-03-17
}}</ref> The first test in 1838 was a failure as the boiler was broken. The task supervisor was chained and two officials Nguyễn Trung Mậu, Ngô Kim Lân from the Ministry of Construction were jailed for false report. The project was assigned again to Hoàng Văn Lịch and Võ Huy Trinh. In the second test two months later, the engine performed greatly. The Emperor rewarded the two handsomely. He commented that although this machine could be purchased from the Westerner, it is important that his engineers and mechanics could acquaint themselves with modern machinery. Therefore no expense was too great.<ref>[[Cao Xuân Dục]], Quốc triều chính biên toát yếu.</ref> Encouraged by the success, Minh Mạng ordered the engineers to study and develop steam engines and steamers to equip his naval fleets. At the end of Minh Mạng 's reign there were 3 steamers produced named ''Yến Phi, Vân Phi and Vụ Phi''.<ref>Khâm định Đại Nam hội điển sự lệ.</ref> However, his successor could not maintain the industry due to financial problems, worsened by many years of social unrest under his rule.