Are helicopters allowed to fly in fog?

Helicopters fly in fog when equipped with the proper instrumentation. These flights are conducted under Instrument Flight Regulations (IFR) and are permissible provided that the pilot is qualified for flying in this flight regime, and the helicopter possesses the necessary instrumentation.

Why fog is bad for helicopter?

Fog and Cloudiness Fog, and even too many clouds, can prevent a helicopter pilot from seeing what is around them. Though they may use instruments on board to help them navigate, the reduced visibility can still disorient a pilot enough to lead to accidents.

Is there a speed limit for helicopters?

At the same time, regions near the tips on the advancing side experience a very high velocity flow, approaching the point where shock waves form, leading to shock induced flow separation. Due to these limiting factors, the maximum forward speed of a helicopter is limited to about 250 mph (402 km/h).

Can you fly a helicopter in the rain?

All helicopters are able to fly in the rain, the water droplets do basically nothing to the aircraft and the machines ability to fly is not inhibited at all. The rain does however affect the pilot’s ability to see outside depending on the rain’s intensity. This concept is known as ‘flight visibility’.

Why are most Helicopters Limited in forward speed?

There are a number of limiting factors on helicopter forward speed. The most obvious one is when drag equals thrust. At that point, the forces balance out and the helicopter can’t go any faster. Another less obvious factor has to do with dissymmetry of lift.

Can helicopters fly faster than airplanes?

Helicopters are undeniably slow compared to aeroplanes. There is no pure helicopter that flies faster than 400km/h (250mph), yet aeroplanes have been going much faster for a long time, and even some trains and cars can go faster.

https://www.youtube.com/watch?v=f72WZwvMTj4