A new domestic South African airline has launched, betting on low operating costs and oil prices to withstand an industry crisis that has left national flagship SAA struggling to survive and sunk other low-cost carriers. The new carrier, Lift, part-founded by former Uber Africa executive Jonathan Ayache and Gidon Novick, who ran low-cost flyer kulala.com, said it planned to avoid a cash-heavy operational model that hit its rivals. "We're fortunate, operating costs are as low as they've ever been. Obviously that's subject to the exchange rate," said Novick. "Oil prices are pretty low. Aircraft values have almost halved, and people…