The British Army is still having issues operating its Watchkeepers, despite the UAVs having received their ‘release to service’ certification
Three Watchkeeper UAVs have crashed in recent years while on UK-based training sorties
INSECT CAUSES JET CRASH When a Boeing 757 crashed in the ocean less than five minutes after takeoff in 1996, it tragically killed all 189 people on board Birgenair Flight 301. The black box revealed that the instrument panel had told the very experienced captain they were going too fast, so he slowed down too much and crashed. In reality the air speed gauge was completely malfunctioning because a small insect had plugged it. The sensor measures wind speed using a small, one-half inch hole in the exterior of the plane, and that hole had been plugged while the plane had been sitting at the airport for three weeks. It was first thought that one of the common mud dauber wasps plugged the hole with mud, but later it was proved that another wasp, called a keyhole wasp, was more likely the culprit. This wasp looks for pre-existing tunnels or holes to nest in, and seals the hole with a neat mud plug. The plug made by keyhole wasps is somewhat hidden inside the hole, so it was easily missed w
The optimism and financial gains of the Wall Street stock market were shaken on "Black Thursday", October 24, 1929, when share prices on the New York Stock Exchange (NYSE) abruptly fell. On this very day, the crash started with a market loss of 11% of its value at the opening bell on very heavy trading.