Patrick Banks, a close friend of Captain Pete Barnes, told ITV London that friends will "rally round" the family of the late pilot.
"He was such a genuinely nice guy," said Mr Banks.
"He'd been all over the world flying all sorts of aircraft, in particular helicopters."
Two men were killed after a helicopter collided with a high-rise crane in London and plunged more than 700 ft to the streets below.
The pilot of the helicopter which crashed had thousands of hours of flying experience including for films such as Die Another Day.