flying helis at gravity 9.8 you like it?

[FuturaSE]

this sport at earth is so cooooooool

we are playing with our current planet earth gravity

wiki: "According to the Bureau International de Poids et Mesures, International Systems of Units (SI), the Earth's standard acceleration due to gravity is:

g = 9.80665 m/s2 = 32.1740 ft/s2).[20][21]"

imagine there are so many planets with a different gravity

WE ARE 9.8 pilots

if the gravity would be 2 times bigger the helicopter would need maybe +25 degrees pitch and only 2 degrees negative

or what if the gravity was 5 times smaller?

FOR ME 9.8 works !!

SAGC.JPG

whats your opinion about flying other gravity and places in the universe??

[BASS 666]

i think your on a wee flight of your own....

[KevDavies]

I have no idea what your on about, However you are funny and crack me up sometimes. I do have some advice for ya tho

[pgkevet]

A little more lateral thinking and more information...
On your higher gravity world: what atmosphere and atmospheric pressure at the flying height? Consider if the gas mixes are different how that might affect design/lift/bouyancy and aerofoils..
On your lower gravity world: can it hold an atmosphere? The moon has 1/6th our gravity but blades aren't gonna work.

What if the effect of gravity isn't even.. say a flattened disc-shaped planet. What woudl the gravity be at the flattened centre compared to the edge of the rim?

[FuturaSE]

@BASS 666 @KevDavies

you both are great people no shit
however it feels like you really think you are alone and there is no universe

[BASS 666]

A little more lateral thinking and more information...
On your higher gravity world: what atmosphere and atmospheric pressure at the flying height? Consider if the gas mixes are different how that might affect design/lift/bouyancy and aerofoils..
On your lower gravity world: can it hold an atmosphere? The moon has 1/6th our gravity but blades aren't gonna work.

What if the effect of gravity isn't even.. say a flattened disc-shaped planet. What woudl the gravity be at the flattened centre compared to the edge of the rim?

for fk sake dont encourage him..

[BASS 666]

@BASS 666 @KevDavies

you both are great people no shit
however it feels like you really think you are alone and there is no universe

yes but WE live in the real world....

[KevDavies]

Nope still no idea!! Can we come Holland and smoke whatever your smokin??

[dillwhacker]

How about a massive hollow sphere, and we live on the inside surface of it, with a sun in the centre. Would gravity act toward the surface?
I blame the Labrador to be honest.....
Rachel knows.....

[pgkevet]

This is a great sci-fi story if you like gravity effects:

Mission of Gravity by Hal Clement (1954)

---

This is a book about a salvage operation on a very unusual planet.
Mesklin is a disc-shaped world, the disk bulging out at the poles, rather like ()
But also there's a strong gravity differential between the rim and the poles. At the world's edge the gravity is about 3 times that of Earth's- tough going but manageable to the human crew. But at the poles it is many hundreds times that of Earth, crushing to any human, literally. The native inhabitants are rather like large centipedes, with flattened bodies and multiple limbs-this helps them to cope with the strong gravity at the poles. These inhabitants are traders, and sail across their world in a ship called the Bree, trading goods with whatever races they happen across. At some point there was a mission from Earth, and one of the crew's rockets, containing expensive cargo and equipment, worth billions, crash landed at one of the poles. Of course the humans are unable to go to the site as they would be crushed, and so they enlist the aliens they find there, whose bodies are designed to withstand the high gravity.

When the book opens the human crew have been at Mesklin for quite some time already and the language barrier has been crossed; the two races communicating via 'vision sets' provided by the humans. The Mesklinites continue with their trading operations, while also helping the humans to find their abandoned ship. The aliens, being so small, have a very low view of the world and have a strong sense of fear of things being above them. Quite understandable really because when at the poles a fall of a few inches could be catastrophic, and anything with any mass falling on them would be fatal. As such their homes have cloth roofs, and they have no concept of flying or even throwing.

The book is definitely hard SF, written by as scientist who makes the reader understand that throwing an object on a world of super high G, let alone flying, would be inconceivable. On such a world a bullet from a gun would arch down to the ground shortly after being fired, and at such a high G place even a pebble, if dropped, would create a huge crater. As such there is no war,no weapons. Also the 'geography' of the planet is quite different. The seas are composed of methane, not water. This is far less dense than water and so the aliens are able to float their ships and travel. For me it made fascinating reading and considering this was written in the 1950s it is quite cutting edge with its strong hard SF elements and, apart from the often wooden dialogue, it appears timeless.
On the whole I found this to be a well laid out exploration of a truly alien world with an interesting collaboration between the humans and the planet's native race and how the barriers are broken down between them.

[FuturaSE]

maybe there are some places in the universe where is a random gravity during the day

pilots over there do have a gravity dial on the transmitter / the pitch degrees will change and are different when flying morning or afternoon or evening

[pgkevet]

How about a massive hollow sphere, and we live on the inside surface of it, with a sun in the centre. Would gravity act toward the surface?
I blame the Labrador to be honest.....
Rachel knows.....

Make it a cylinder and rotate it. It's been used in sci-fi.. if memory serves the asteroid ceres was heated to melting and then injected with gas to expand the molten mess into such a sphere and rotated.. then used as a pregnancy and maternity clinic for humans colonising the asteroid belt..

[FuturaSE]

What if the effect of gravity isn't even.. say a flattened disc-shaped planet.

WWTT****** ??????????

there is a flattened disc-shaped planet?

The-Other-Guys_300.jpg

[dillwhacker]

This is a great sci-fi story if you like gravity effects:

I'd like to read that. Loved proper sci-fi as a kid - Asimov, Dick, Harrison etc.
The hollow sphere solar system came from a story years ago, I am sure.
Transatlantic tunnel anyone?
Billiard ball?
Baaaaa...

[dillwhacker]

pilots over there do have a gravity dial on the transmitter

But if gravity goes up, so does the density of the air. = more lift... So would the same pitch lift the increased weight?