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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum

GLD 379.91

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Nov 11 4:00 PM EST

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SirWalterRalegh

To: TobagoJack who wrote (153370)	2/19/2020 6:34:57 PM
From: Maurice Winn	1 Recommendation Read Replies (1) of 217688

Debris is left inside surgical patients so it's unsurprising that some debris is overlooked where it matters little. But even a kilogram of surplus debris in a fuel tank is a constant drag on fuel efficiency of 1 kg per flight = 600 kg per year of extra fuel = 6 tons of fuel over 10 year lifespan. Admittedly those numbers are approximate but near enough for government work. Fuel systems have good filtration so debris doesn't matter from a blockage point of view. Fuel is problematic because water gets in with air as fuel tanks are emptied then condenses inside the tanks. There is a fungus cladasporium resinae (If my spelling is correct from 33 years ago) that lives on diesel/kerosene (jet fuel) at the water interface. That's a problem to manage. Fuels are also not very stable so that needs management too. The Jet A1 fuel specification is tight to avoid problems. But life is not perfect. For example jet fuel to Auckland shares a pipeline with diesel and gasoline from Marsden Point refinery. And the big old tanks store it before piping to the airport. A bit of water emulsified in fuel doesn't matter as it just flows through. I was considering a clever diesel/methanol/water/etc emulsion but didn't finish it before quitting BP Oil International. Water can help combustion and reduce emissions and keep the methanol suspended just right. In an airliner the water weight would be undesirable. High energy per kilogram is wanted. A spanner or rivet left in a fuel tank would just sit there. But here's an idea. You might have seen how a stone left on a concrete railway sleeper wears a hole in the concrete, or a rock in a river, or by the ocean with waves breaking over it, causes the rock to burrow down making a hole in underlying rock on which it sits. A wing bounces up and down so a bit of iron sitting in a wing tank would similarly wear a hole in the fuel tank. That could be annoying if the fuel ran out and did bad things. It would be more annoying than fatal as the leak would be slow and easily noticed. I've never heard of that problem but it must have happened. Meanwhile TSLA shorts have sprung another leak with all time high excitement nearing $1000 per share. What fun. Mqurice

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