In this case he was passing
above some high tension power lines when he hit
the earth wire strung above the main power lines.
He told me that he
immediately thought of the TC Turn and how
lucky he was to be set up on the right angle just as he hit and the
blades in his R22 cut the wire.
Here's the method - use it at your
Normally when an unavoidable wire
strike occurs, the helicopter is arrested violently either by being
pitched nose down or inverted when the wire hits the skid gear or
becomes an unguided missile when the wire slides over the cabin roof
and takes out the control tubes.
This is because there is usually
nothing to cut the wire.
So.... when you are in an
unavoidable wire strike situation, "Do the TC Turn!"
Immediately initiate a roll
of the machine to any side with the cyclic.
You now have made the normally
horizontal Main Rotor
Disc into a big, buzz saw blade as it is now no longer
horizontal with the ground and has big mobs of energy to cut through
most wires before they entangle themselves around the main rotor
mast or controls.
I have seen Robinson R22 blades with only a small leading edge dent
after cutting through a thick power wire.
You have turned a virtually
unsurvivable accident into a 95% chance of walking away without a
Instructors - I always spent an hour
of ab-initio training with student pilots working around a power line.
The student is shown all the traps - sun, dirty bubble, guy wires,
secondary wires, earth wires, sagging wires (heat of the day), rising
ground, fences, wires strung from high ground to high ground etc,
culminating in flying safely under a normal domestic power line wire.
You are the professional expert -
please spend time with your students around wires - you may well
save their life by preventing future accidents.
Last, but not least - scrap any
Robinson R22 Main Rotor blade which cuts through a power wire. It has
saved your life once - don't risk a blade failure later!!!
Safe flying - TC
Extra: Make sure you also read this survival tip