Author Archives : Chris French

Adding an air bypass baffle modification to cylinder 5 on a Lycoming IO-540


The back right cylinders on Lycoming engines are always the hottest on Van’s RV planes. I’ve not had any major issues (with CHT temperatures) on cylinder 5 until recently. Departing Las Vegas at 6:45am in 90+ degree temperatures it took a lot of playing with my climb rate and oil cooler dampener to keep the CHTs in line, and even…

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It’s a wrap!


With winds overnight I had turned on the anchor alarm around midnight and kept an eye on it until morning. My 4:45am alarm got us up and moving and with just a tinge of light, the anchor was pulled and we motored north. The forecast was winds for the first 12nm from wind pouring in from the Pacific. The possibility…

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