Fabian
Well-Known Member
Now this is motor bicycling
Last edited by a moderator:
Motor bicycling taken to a higher level
- Thread starter Fabian
- Start date
Fabian
Well-Known Member
Jim, what sprocket set do i need to order from SickBikeParts to enable the shift kit to operate the lift fan system?
keatonx
Member
The one with the built in flux capacitor!
HeadSmess
Well-Known Member
- Local time
- 10:51 AM
- Joined
- May 17, 2010
- Messages
- 3,048
using the coanda effect is a far more efficient lift production than trying to counteract weight with sheer thrust. plus you have some type of wing for when it all goes wrong. i thought i was onto something when i thought of it as a kid. beaten. as usual 
been done waaaaaay back.
VTOL has never really been a huge success yes, helicopters and hawker harriers, etc... but one, its considered the most dangerous maneouvre to perform in an aircraft, and two, its the least efficient. a chopper uses a lot less fuel by taxiing and taking off like any other aircraft.
of course, as you use fuel, the payload decreases so you use slightly less...
i do admit though....now, what with GPS and fancy puters and all that...the idea of flying cars becomes semi feasible. restricted flight paths, all aspects of the flight being controlled by a computer, with absolutely NO operator intervention, other than to select destination.
otherwise...we would have people slamming into each other constantly. they say the road toll here of a mere 8 or so people annually is "horrific" and "avoidable" if people just did the speed limit
travelling at 600km/h, head on at someone else doing 600km/h... by the time you can tell if their ABOVE you, BELOW you, to the LEFT OR RIGHT... or directly in front...theres no time to react! at least when your on the ground, with a lane marker...theres really, most of the time, only one place a vehicle can be. they cant be above you. or below you. so, unless theyre asleep drunk or stupid, they must be to one side of you!
get into outer space, travelling at 100,000kmh+....well, all this star wars footage of flying through an asteroid field may look good on screen...reality you would be dematerialised instantly every minute, youve basically travelled across australia, if not the world... every second is a few hundred kilometres... can you tell what way something 200km away is travelling? better be quick! be there in a second to find out! halve that if theyre heading directly at you!
oh, and at 100,000km/h... a brick would need as much power to stop or change direction as it would if say, the titanic was doing 100km/h... thats inertia for you.
those calculations they make for space flight have to be SPOT ON, you simply cant carry enough fuel to be able to correct course all the time.
everyone from uri gagarian to...um. ill say micheal collins cus everyone forgets about poor old mikey, but rants on about buzz and neil... were completely insane to have put their trust in those machines! but, it was worth it i guess.
dont get me wrong! i would LOVE some type of little "flivver" i could zip under the radar on! the nearest beach is 10km away in a straight line! its 70km away by road!
but this video is just another example of someone with a LOT of money throwing it away with no real concern about the final results...
been done waaaaaay back.VTOL has never really been a huge success
yes, helicopters and hawker harriers, etc... but one, its considered the most dangerous maneouvre to perform in an aircraft, and two, its the least efficient. a chopper uses a lot less fuel by taxiing and taking off like any other aircraft.of course, as you use fuel, the payload decreases so you use slightly less...
i do admit though....now, what with GPS and fancy puters and all that...the idea of flying cars becomes semi feasible. restricted flight paths, all aspects of the flight being controlled by a computer, with absolutely NO operator intervention, other than to select destination.
otherwise...we would have people slamming into each other constantly. they say the road toll here of a mere 8 or so people annually is "horrific" and "avoidable" if people just did the speed limit
travelling at 600km/h, head on at someone else doing 600km/h... by the time you can tell if their ABOVE you, BELOW you, to the LEFT OR RIGHT... or directly in front...theres no time to react! at least when your on the ground, with a lane marker...theres really, most of the time, only one place a vehicle can be. they cant be above you. or below you. so, unless theyre asleep drunk or stupid, they must be to one side of you!
get into outer space, travelling at 100,000kmh+....well, all this star wars footage of flying through an asteroid field may look good on screen...reality you would be dematerialised instantly
every minute, youve basically travelled across australia, if not the world... every second is a few hundred kilometres... can you tell what way something 200km away is travelling? better be quick! be there in a second to find out! halve that if theyre heading directly at you!oh, and at 100,000km/h... a brick would need as much power to stop or change direction as it would if say, the titanic was doing 100km/h... thats inertia for you.
those calculations they make for space flight have to be SPOT ON, you simply cant carry enough fuel to be able to correct course all the time.
everyone from uri gagarian to...um. ill say micheal collins cus everyone forgets about poor old mikey, but rants on about buzz and neil... were completely insane to have put their trust in those machines! but, it was worth it i guess.
dont get me wrong! i would LOVE some type of little "flivver" i could zip under the radar on! the nearest beach is 10km away in a straight line! its 70km away by road!
but this video is just another example of someone with a LOT of money throwing it away with no real concern about the final results...
keatonx
Member
There's no way a HT will make enough thrust with the air blowing downwards like headsmess said cuz the thrust bears all the weight instead of wings. But I thing MAYBE a ht might work in a plane/powered hanglider
keatonx
Member
I'm actually considering, for a crazy experiment, making a tiny plane, powered by a lawnboy 2 cycle mower engine that I have (6.5hp), that sits upon a cheap inflatable tube/dinghy. With a wingspan of around 15ft (long wings, and I'm only 115lbs) Made out of wood and the wings would be corrugated plastic (the stuff they use for lawn signs and stuff) screwed into a wood frame. I would use on the lake at my cottage (hence the dinghy), and would fly not more than 8/10 ft above the water so when (not if) things go real bad I just fall a few feet into the water. Of course this sounds really dangerous! I'd definitely make a steel shroud around the prop, or just make it a ducted fan and put a steel grate over the inlet and outlet.
Another thing is that before I even install the engine, I could hold onto a waterski rope and get towed by my family's boat, to see if it will even take off and be stable in the air in the first place.
If I ever actually do it I would only use it once, a meter off the water, fly in a straight line, get a nice video then park it.
Be easy on me now, it's just a crazy daydream I've had for a while
Another thing is that before I even install the engine, I could hold onto a waterski rope and get towed by my family's boat, to see if it will even take off and be stable in the air in the first place.
If I ever actually do it I would only use it once, a meter off the water, fly in a straight line, get a nice video then park it.
Be easy on me now, it's just a crazy daydream I've had for a while
HeadSmess
Well-Known Member
- Local time
- 10:51 AM
- Joined
- May 17, 2010
- Messages
- 3,048
look into "ground effect" vehicles.
russians made a monster of a plane using the idea...it basically just "skims" above the water. no, not a hovercraft.
and not quite a plane, either! they wont get much more than a few metres off the ground. very short stumpy wings, they "trap" a pocket of air under there. inverted tips and all that sort of stuff.
ive seen one "flying" down on the river near me. homebuilt. try youtube, the commercial kit looks pretty fun!
and FAST. read, water cops dont stand a CHANCE, especially on rough water
be very careful. flying is awesome, the FAA or similar...is NOT. hence why one must stay "under the radar"
russians made a monster of a plane using the idea...it basically just "skims" above the water. no, not a hovercraft.
and not quite a plane, either! they wont get much more than a few metres off the ground. very short stumpy wings, they "trap" a pocket of air under there. inverted tips and all that sort of stuff.
ive seen one "flying" down on the river near me. homebuilt. try youtube, the commercial kit looks pretty fun!
and FAST. read, water cops dont stand a CHANCE, especially on rough water
be very careful. flying is awesome, the FAA or similar...is NOT. hence why one must stay "under the radar"
