"The start of flight tests is scheduled for 2019-2020," Pushkin said.
Potential space tourists would be admitted to the private spaceflight program after three-day training and medical examination.
"Space tourists will be offered a 15-minute flight in a group of six tourists. Each will be in a state of weightlessness inside a cabin with a total volume of 30 square meters [320 square feet]," Pushkin said.
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