FAA approves hundreds more engines to use unleaded avgas
Interesting to see the continued interest in G100UL on Hacker News. Personally I'm ecstatic to soon be able to run unleaded. I'm curious to know if this is indicative of a broader (politically-relevant?) interest in getting lead out of GA, or just the sort of specialist topic that tends to interest HNers.It's interesting (but not unexpected in hindsight) that this new slew of approvals (generally) only impacts engines previously approved for low-octane unleaded fuels (e.g., 94UL). Even smaller engines like the Lycoming IO-360 (except the derated -L2A) aren't approved despite only modest power increases over the O-360.At any rate if GAMI is to be believed this is all academic because the final set of approvals should come out before G100UL is practically available anyway.