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.
Vietnamese Dong. The dong or (d) is circulated in bills and coins, using denominations from 500d to 500,000d. A picture of communist leader Ho Chi Minh is on every banknote.It's possible that more rural areas won't accept coins at all; coins are more widely used in cities such as Hanoi and Nam Dinh.ou can withdraw up to 2,000,000d from Vietnamese ATM machines, which amounts to about $125 at time of publication. The black market is thriving in Vietnam, but exchanging U.S. dollars for dong on the street is more costly than using a bank or ATM.