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Forum: Rotorheads

29th Mar 2021, 06:11

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

Maybe with a scale model, but in real life, a...

Maybe with a scale model, but in real life, a large rotor moving lots of air to a smaller speed is far more efficient than a teensy rotor moving small amounts of air to a much higher speed. Losses...

Forum: Rotorheads

26th Mar 2021, 11:10

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

In a real auto, as a result of electrical...

In a real auto, as a result of electrical failure, there will be no tail rotor operating, as it is run by a potentiometer adjusting electric power to the 7 rotors.
In a real auto, will the dead...

Forum: Rotorheads

24th Aug 2018, 07:51

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

It takes 5 minutes to refuel a helicopter with...

It takes 5 minutes to refuel a helicopter with liquid fuel, and it is good for another 2-3 hours. Refuel, 2-3 hrs work, and so on.

It takes overnight to recharge a battery pack, and it is good for...

Forum: Rotorheads

18th Dec 2017, 20:14

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

But you wouldn't park your Bambino on a...

But you wouldn't park your Bambino on a pedestrian crossing, beside a "no parking" yellow line. But it's OK, no cop cars in sight.

That parachute might reduce their terminal velocity from 120kt to...

Forum: Rotorheads

17th Dec 2017, 20:21

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

Love the dreamer's pic of the Identified Flying...

Love the dreamer's pic of the Identified Flying Object "Landing in the streets" - no cars visible anywhere, the Object floating down between palm-lined footpaths, and hasn't yet deployed the landing...

Forum: Rotorheads

9th Apr 2016, 00:32

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

It looks like a single sidestick to control 4...

It looks like a single sidestick to control 4 axes - pitch, roll, yaw and vertical (collective).

Be interesting to see if the average joe can get a pure yaw or vertical movement without the...

Forum: Rotorheads

16th May 2004, 23:03

Replies: 201

The future of the helicopter is electric.

Views: 61,262

Posted By Ascend Charlie

Imagine the helo landing next to the bowser and...

Imagine the helo landing next to the bowser and asking for 37 Coulombs of electrons, please.

The problem with electric motors is how to store the electrons. We all know that only round electrons...

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