Question for the experts: Why don't boats have gear boxes

[gingerjedi]

[milanbenes]

nah GingeMinge,

you got it all wrong

only fun

Milan.

[minestrone]

How's that different than a sports car, air resistance is by far the biggest factor above about 100mph. Above that speed, cars conserve momentum about as well as a boat does at 10knots.

You go down to the pool and try and run through water.

[gingerjedi]

You go down to the pool and try and run through water.

Get on the roof of a train travelling at 100mph and try running forward.

[TimberWolf]

You could ask the same question about aircraft. Why don't aircraft have gears? Because it would look funny seeing a pilot engage 1st, 2nd, 3rd, 4th and then 5th (avoiding reverse) to take-off.

[minestrone]

Again the point is conservation of energy.

Not that my opinion counts for anything with my 2nd Class Engineering officer exemptions.

[TimberWolf]

Get on the roof of a train travelling at 100mph and try running forward.

Quick back of the envelope calculation suggests this would require a force of 1000 N, just to stay still, or like lifting 100 kg.

[milanbenes]

'You could ask the same question about aircraft. Why don't aircraft have gears? Because it would look funny seeing a pilot engage 1st, 2nd, 3rd, 4th and then 5th (avoiding reverse) to take-off. '

TW,




imagine the plane lunging forward with each gear change and the pilot crunching the gears and swearing

anyways,

this is going away from the point

Milan.

[TimberWolf]

'You could ask the same question about aircraft. Why don't aircraft have gears? Because it would look funny seeing a pilot engage 1st, 2nd, 3rd, 4th and then 5th (avoiding reverse) to take-off. '

TW,




imagine the plane lunging forward with each gear change and the pilot crunching the gears and swearing

anyways,

this is going away from the point

Milan.

Not really. It is funny image you admit. Plus, aircraft don't use gears either, that I know of (excluding landing gear). The same principle as boats exaggerated.

[milanbenes]

imagine the pilot on the intercom system,

i can't get the bugger into second


Milan.