If you just look at typical cruising speed, the fastest is the Boeing 747-400ER (used only by Qantas), which cruises at Mach 0.855 (495 knots at 35,000 ft). The fastest civilian aircraft currently in operation is the Cessna Citation X, which cruises at Mach 0.92 (525 knots at 35,000 ft). Views Â· View Upvotes.
The Vietnamese currency is the dong (abbreviated to âdâ). US dollars are also widely used, though less so in rural areas. For the last few years the dong has been fairly stable at around 21,000d to the dollar. Where prices on the ground are quoted in dong, we quote them in dong. Likewise, when prices are quoted in dollars, we follow suit. Thereâs no real black market in Vietnam.
In Vietnam, they use the currency called 'Vietnam Dong'. One thing interesting i find about Vietnam Dong is that $1AUD = 16,100 Vietnam dong. (5/11/09) 4:37PM which is a BIG difference.