I agree with the scale being off.

With a cruise time of nearly 20 hours, that dude crawled out there mainly to service the engine oil tanks. Those old radials drank quite a bit of it.

I can’t imagine how noisy that had to be. Nor how cold the crawl out the companionway must have been at nearly 20K in the winter months.

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1980 300D - Veggie Burner !