Article about CHT and EGT

Coyote Chris

Coyote Chris

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This is from my EAA magazine. Interesting article about Cyl head temp and Exaust gas Temp.
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Note the two right pics of the engine instruments. The verticle bars are EGT. Say about 1200-1400 F. The horizontal bars are CHT, 6 cyl. air cooled engine. 375 f. Now in the right photo, the pilot is in cruise running normal lean. THEN he turns off one mag/ignition , running on just one plug....and some of the EGTs go up into the yellow at 1600F.
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karl said:
More than half of the hard earned cash you spent your money on for fuel is heating up the great outdoors.
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Just like an incadesent light bulb. There have been attemps to recover the lost heat but they have failed the cost/benefit equation.
 
Smokey Yunick tried for YEARS to invent an engine that retained the heat but not melt down or seize. It's called adiabatic cooling.
 
suvcw04 said:
Smokey Yunick tried for YEARS to invent an engine that retained the heat but not melt down or seize. It's called adiabatic cooling.
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All I had seen was ways to use the heat to make motion. Power recovery turbines on the exhaust of a Connie. Three to an engine.
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I remember when those Connie’s were new.
We are a very consumptive society. It costs money to travel unless you’re riding a horse. If you are riding a horse it will likely cost more (unless you make your own hay and do your own farrier work). It costs more money yet if you travel fast.

My son drives a big diesel truck 20 miles onto a big lake plowing snow while towing a 7,000# fish house which he heats with propane in order to catch a sew fish. Glad I don’t have to pay his bills.

I figure I costs me about $40 per day for gas, $35 per day for camping/hotel, and $25 per day for food to travel on my motorcycle. So I plan on $100 per day to allow for tolls and extras. But of course that’s all money well spent. I’ve often wondered how much it costs to ride a BMW, sleep in good motels, and eat in nice restaurants. Not that much more I suppose.
 
If you want to see a Constellation, there's one parked on the north end of the airport on the west side of I-135. They're getting rare.
 
In the early to mid 1950s, the Lockheed Constellation was THE coast-to-coast airliner + many of the overseas routes were serviced by the Connie.
 
I remember it was TWA's flagship but they got caught with their pants down when Delta, United et al went with the Boeing 707 or the Douglas DC8. Lockheed took a big hit too which kept them out of the commercial jet business until the L1011.
 
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