The latest crash was horrible. It was a beautiful day and the winds were manageable, or so I thought. The sun was shining brightly and as I approached the helipad I mulled over putting on my sunglasses. I rejected the idea, figuring that I could keep my back to the sun and avoid any mishap. Somewhat typically, the winds had picked up by the time I was ready to spin-up, and it was marginal whether I should fly or not. I favoured optimism after my latest run of good fortune so I went for it. A huge gust immediately lifted her up to about twenty five feet right over my head, forcing me to spin around, straight into the glare of the sun. I was blinded immediately, and fearing a crash into the trees, I took evasive action. My cyclic inputs were too heavy-handed, she pitched violently backwards and swan-dived quickly and upsettingly to the ground, landing directly on the rotor head assembly with a catastrophic explosion of parts. The entire flight lasted about 5 seconds.
The rotor head assembly was utterly destroyed. The flybar was so bent it was wrapped around the main hub in a complete circle. The impact was clearly very heavy because the autorotation sleeve (at the opposite end of the main shaft) was cracked down its entire length. One of the servo arms had snapped and another servo had the ball joint forced out of the servo arm. The main gear had around three cm of chewed-up teeth. I've had to replace two main blades, the feathering spindle, spacers and O-rings, flybar control arms, the main shaft, the main gear, the flybar, the centre hub, the flybar carrier, two servo arms, the autorotation sleeve and several bearings. The motor may have a problem and may have to be replaced. Remarkably, the tail was untouched.
What did I learn? If there's any perceived danger prior to take-off, stop, and either remove the risk, or cancel the flight. In this case sunglasses might just have saved the day.
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