Fraiser Farmer,

Yes it quit in the field while spraying. Callair was low wing fuel.

DENNY wrote:Using MoGas vs 100L even blended can save enough money to pay for a complete overhaul at 2,000 hours. The amount of lead is 5 times the recommended amount for a 0320. With hardened valve seats the lead is no longer needed. Just things to think about.
DENNY

My low-compression (7:1) O470 runs just fine on 87 octane e-zero mogas.
Just because, I run 80% mogas & 20% 100LL.
Currently paying $3.40 for mogas and $5.74 for 100LL at my home airport (admittedly not the lowest price in the area).
Even running that 80/20 blend, at 12 gph my fuel cost is about $46 per hour vs about $68 / hour for straight 100LL.
That $22 / hr difference results in a savings of over $33K over the 1500 hour TBO of my engine.
Maybe not quite enough to overhaul everything FWF but for sure it's a helluva good start.
And I would guess more of a savings than running LOP, for which fuel savings is often cited as a factor.

I have flown the California Central Valley several times transiting from Oregon to Torrance. I have met several crop dusters (both helicopter and fixed wing sprayers), fire and grid patrol guys (mostly Scouts) and just about every type of GA pilot.

A horror story:

“...Love stinks...” and so does unwanted lead...

A guy from Red Bluff, California, who flys a Scout for PG&E mentioned that he was tested for high lead in his blood. Normally flying a 7 hour day, 5 days a week. The conclusion, he mentioned, was the short exhaust pipe was letting in a trace amount of exhaust during the long daily patrols. They extended the pipe and it precluded the toxin from harming him further. I have no further information or even remember the guy’s name. I do believe the pipes on many aircraft are a bit short, which allows lead deposits on airframe and critical components. Note the Scout cabin is nowhere airtight and so is the belly pan.

Carry on men...