How do you figure? An archer with a carbed o -360 is a 9.5GPH to 8.5 gph leaned properly. That puts you at 5:00-5:30.
I'm not 100% on this, but I don't think that you'd be able to achieve that fuel burn at 75% power right?
The radio transcripts actually have the call around 3:30am so if that's accurate the trip was more like 4hrs. There may have been a tailwind, but even still, it doesn't sound like someone dialing back to max range at an economy setting.
I hope they take some time to do the math though. It could turn out that he did have a good plan and the margin of error was grossly underestimated. Admittedly though - at first pass, it certainly looks like he was pushing it or below minimums.
The problem though - if we just chalk it up to bad planning, we may never get a true picture of what happened - and thus its bound to be repeated. The NTSB will stop at fuel exhaustion, but that doesn't tell us anything. I'm sure he didn't set out to kill himself and his other daughter, so are we sure that he had a bad plan? If so, why? Where was the error? We need to find that out.
Also - check out the selfie that's all over the news... no shoulder belts??? I wonder if that played a factor. Sounds like the top got ripped off, so maybe belts would not have helped, but clearly the backseat passenger survived and the pilot was ejected and on the street. I wonder if belts would have mattered. Here again, the NTSB report probably won't provide guidance on that.
I agree wholeheartedly with the poster on the Part 23 revisions. I flew in an Archer whose gauges were just way off, so I know there's room for improvement. From the pics I've seen it doesn't look like he had a totalizer - which could have saved two lives. It shouldn't cost $6,000 to get good seatbelts and a fuel totalizer in an aircraft.