Best about the Spin Cone is the low-tech approach.

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Aaron Jesse, 47, said he had left work early for a round with friends at Westlake Golf Course and saw the low-flying plane hit a tree, spin around 180 degrees and land surprisingly gently.

NPR: 1 Dead After 2 Small Planes Collide Near LA

That's a great trade for the parent, says Joseph Cornell, who publishes Spin-Off Research from Chicago: Sell high, buy low.

FORBES: A Different Spin

But the format, which also has a successful celebrity spin-off, has been criticised by some commentators as low-grade television and even cruel.

BBC: NEWS | Entertainment | Channel aims for more Big Brother

The smooth and immediate low-speed power delivery also makes the Electric Defender adept at climbing obstacles without having to spin its wheels unnecessarily, which can damage the environment.

FORBES: Land Rover Experiments With Making Its Defender 110 An Electric Vehicle

Trott should have been dismissed on 13 when he prodded forward to the probing left-arm spin of Shakib, but debutant Jahurul Islam spilled a reasonably straightforward low chance at short leg.

BBC: England on back foot against Bangladesh in Mirpur