You are pointing to parts of the aircraft that are not the part about which you say you are speaking. In the beginning of your video you are grabbing an aileron and saying it's a flap then you move inward and grab a flap and say that increases lift. They also dramatically increases drag. Flaps move in unison and in the same direction with one another, spoilers move opposite to one another. Which way do the surfaces move in your foil? The biggest misnomer being made here is when you're grabbing the elevator on the aircraft and you're calling it and rudder. The elevators are for maintaining pitch the rudder is controlling the yaw which would be the left and right alignment relative to the longitudinal axis into the wind. Only aircraft where you might relate an elevator to being rudder would be a a V tailBonanza. I do agree that sailing and flying are very similar especially when you're piloting lighters and were the first thing that I flew. The keel on the sailboat, and the sails, greatly relate to wings since they are all services moving air or water to create lift or drag. I have always thought of gliders as three-dimensional sailing. In all of them you get what you earn through more masterful utilization of the lift and drag in anticipation of where you're going to find most favorable winds and currents to help you.
@stopthephilosophicalzombie9017
3 жыл бұрын
Maybe that was an editing problem?
@stopthephilosophicalzombie9017
3 жыл бұрын
I suspect the reason there are so many crashes of small aircraft is because most pilots really don't fully understand how lift and drag really work.
@wouterdobbelaere
3 ай бұрын
He is talking about the "lift on the rudder [foil]": do AC75 boats work with positive lift or negative lift (i.e. downforce) on the back foils!? I would expect them to use downforce so they basically set the AoA (angle of attack) of the (fixed part of the) front wing. That is also how elevators typically works on airplanes. That is also why it is typically referred to as "stabilizer" as it sort of stabilizes the AoA and therefore also the flight height.
@GeneralG1810
3 жыл бұрын
And here’s us ordinary folk going “What the fuck?”
@williamcoetzee2263
3 жыл бұрын
Thanks for the explanation. Just a small correction. The bit of the plane in the back that you referred to as a "rudder" is actually a horizontal stabilizer. The "lifting" control surface at the back of the stabilizer is the "elevator", which controls pitch. The rudder of a plane is the vertical element that controls "yaw" or movement around the vertical axis. My questions then is this: is the "rudder" of the AC75 then a combination of the plane's rudder and stabilizer? I.e. does it control both steering and lift?
@stopthephilosophicalzombie9017
3 жыл бұрын
Yeah I thought that was strange when he put his hand on the horizontal flap and called it a rudder.
@wouterdobbelaere
3 ай бұрын
He says that the *tail* of the airplane looks like the rudder of the AC75, which makes sense, as the tail of the airplane consists of both "rudder" (to steer the yaw direction) and the elevator (to steer the pitch direction). So the rudder of the AC75 also has these both functions: the vertical part of this AC75 rudder controls the yaw (so works like rudder on airplanes), and the horizontal part controls the pitch (so works like the elevator on airplanes).
@theftparrot5750
3 жыл бұрын
Answer really well
@blancolirio
3 жыл бұрын
Is the rudder on the AC75 interconnected with the main foil (flap control)? Or are these completely separate functions controlled by the "flight controller"?
@stopthephilosophicalzombie9017
3 жыл бұрын
I think there's all kinds of logic built into the controls so that when you move the rudder there are adjustments made to other systems.
@edwardnewborn3523
3 жыл бұрын
Go the Kiwis.
@unclebob6728
3 жыл бұрын
Thank You!
@kevinmoore4887
3 жыл бұрын
Is the height set by humans, sensors (dragging a sensor arm), or computer, like an autopilot?
@tinkeringwithmark1186
3 жыл бұрын
Does anyone know where the "Stars & Stripes" ac75 is??
@mattmoore1882
3 жыл бұрын
Nice Plane! ;)
@cwgarr
3 жыл бұрын
Sorry, while I am impressed with the technology involved, as a sailboat race it doesn’t do anything for me other than idle curiosity. Probably the only positive takeaway that I see is that there won’t be any carryover into production boats. I want to see real, tactical sailing, not drag racing.
@DerekHarding
3 жыл бұрын
There are more and more foiling production boats. And don’t for one minute think these racers aren’t tactical. These aren’t drag boats, they’re high performance dueling racers.
@afthefragile
3 жыл бұрын
I hope to see one day production boats will have similar foils too to help it "fly" on the water. Over time race tech does trickle down such as the modern hull designs we see today with straight vertical bows and wide sterns. Maybe in the future keels will come a thing of the past and we'll have these foils instead. The real test however would come down to how well such a foiling boat could handle heavy seas. I can't imagine these boats surviving a Volvo Ocean Race leg in the Southern Ocean, but then again they weren't designed with that in mind.
@DerekHarding
3 жыл бұрын
@@afthefragile like this? www.sailingworld.com/story/sailboats/boat-of-the-year-2020-f101-best-foiler/
@Draconorst
3 жыл бұрын
These are very much the Formula 1 of sailing. Just like formula 1 the technology trickles down to the average boat. The best thing about this Americas cup is that it's not on a pond, it's on a very changeable open water harbour, expect some very exhilarating sailing.
@joshuarosen6242
3 жыл бұрын
Perhaps you aren't aware of this but drag races take place in a straight line. America's Cup races do not. You are ill-informed.
@scottstewart5784
3 жыл бұрын
helpful content
@elinannestad5320
3 жыл бұрын
I'd like to begin to understand how they can go 3 x the wind speed.
@rakhaut3887
3 жыл бұрын
Assuming you dont know it already, look up "Apparent Wind".
@leighdexter7493
3 жыл бұрын
A sloop style sailboat is not being “pushed” by the wind, its more being sucked along by that wind. In some ways, a sailboat is a plane with a wing in the water and a wing in the air. It’s a deep rabbit hole, and very very cool to learn about.
@barriemurdock5376
3 жыл бұрын
Very little drag and an extreme amount of lift or forward force from that huge sail(airfoil). How many sq ft of sail do they have?
@casparurban8730
3 жыл бұрын
Oh wow! The world of sailors learns that water is a liquid that behaves like a liquid. Venturi, Bernoulli, Newton, Euler, and the Liquid Dynamics send their regards
@marcoticci
3 жыл бұрын
👍💪
@wsjoiram
3 жыл бұрын
A clip that completely fails to accomplish it's self-declared brief. Take off your cap and shades and start talking shop!
@JohnSmith-ci2vu
3 жыл бұрын
This ain’t sailing, bring back the conventional yachts that actually stay in the bloody water!
@joeblow1942
3 жыл бұрын
How come these aren’t faster than the cats from the last AC?
@andreas49er
3 жыл бұрын
I suppose because the cats had a bigger beam than these....bigger beam creates bigger downforce going through the foils, bigger downforce creates more speed
@andreas49er
3 жыл бұрын
Also the cats had a wing instead of a mainsail
@zaksol7022
3 жыл бұрын
they are faster there doing 10 knots faster then in bermuda 2017 the kiwi boat has done over 50 knots trialing before the cup started.
@joeblow1942
3 жыл бұрын
@@zaksol7022 Whoa! You sure about that? I assumed being that they are ballasted that they would be slower than the foiling cats.
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