Radical new designs from present-day airliners will need to ace it on small details, because the market will shift violently over the next two decades. One detail that we think JetZero got wrong recently is its decision to use SAF (sustainable aviation fuel) instead of hydrogen to run its blended wing-body design (BWB). Alaska Airlines has become the first commercial airline venture thus far with such a radical redesign on the single- or double-aisle commercial jet that we are so used to by now. The airline operator has signed an agreement with JetZero for an undisclosed number of units of its BWB design through its venture capital arm, Alaska Star Ventures. The California-based start-up, JetZero, emerged from stealth mode in…