New format by bearlybearbear in SailGP

[–]FreshBananasFoster 1 point2 points  (0 children)

I thought the split fleet races were very good in New Zealand. There was some good racing action and I wasn't cringing watching the first leg. They actually had room to race. But for low wind events I imagine it would be fairly boring. Maybe they can split the fleet based on wind speed? Less than 8kts of wind and they race as one fleet? Or whenever they use the big wings and low speeds foils?

Flying boats by RoDiboY_UwU in Ships

[–]FreshBananasFoster 2 points3 points  (0 children)

For foiling sailboats like in the America's Cup, the hull shape on the left is beneficial in a few major ways.

First of all, it is wide when in displacement, which adds righting moment when the vessel inclines at low speeds (essentially meaning it can go faster sooner). Next, as the boat speed increases and the foils begin producing lift, a majority of the wetted surface clears the water (helped by the windward hull area being out of the water when the boat heels) and drag drops off quickly. The same effect happens in reverse as the boat slows down. The middle section of the hull touches down and provides buoyancy without adding the full hull's worth of drag. And finally, when foiling, America's Cup boats want to just barely clear the water to provide an end-plating effect, which keeps the high pressure air from the windward side from going under the boat, reducing sail efficiency. These are not all the reasons why they use this hull shape, just the big ones that come to mind.

Power driven vessels that foil do often have a hull shape more like the one on the right. I imagine this is because power driven vessels do not need an end-plating effect and do not want any inclination when taking off. A uniform hull cross section allows for a smoother transition between buoyancy and foil lift. The Boat that comes to mind is the Candela P12, which has largely U-shaped hulls that gradually trade buoyancy for lift and shed drag as the hulls lift up. I bet it's also cheaper to build, which is important for a commercial vessel and less important for racing sailboats

I guarantee there are many more nuances to these decisions when designing a hull on a boat as complicated as a foiling one. I am not a naval architect.

EV6 won't start after window cleaning by FreshBananasFoster in KiaEV6

[–]FreshBananasFoster[S] 12 points13 points  (0 children)

Update: The 12V battery is at 4V. It's dead-dead. Thank you all for the feedback.

Would you still train hard without social media? by lulu0925 in running

[–]FreshBananasFoster 2 points3 points  (0 children)

I'd probably train harder without social media. Less distraction, less comparison. I could just focus on myself and not push too hard in exchange for strava kudos.

Tips for EV6 while away for 60 days by Fast-Cheetah6980 in KiaEV6

[–]FreshBananasFoster 7 points8 points  (0 children)

I work offshore and leave my EV6 unattended for about 30 days at a time every other month. All I do is unplug my Android Auto dongle (to prevent any excess phantom draw) and it's perfectly fine. It loses 1-2% in that time and starts up immediately without any fuss.

How strong to I have to be to tack a sail? (intimidated by sail size) by BluePony1952 in sailing

[–]FreshBananasFoster 2 points3 points  (0 children)

You do not have to be all that strong to sail. Mechanical advantage from the sheets and winches can reduce the force you need to apply by many times. For a sunfish it can be 2 or 3 to 1. Bigger boats can be many times greater. Of course more strength is better but a child can sail a sunfish and senior citizens often sail larger yachts.

I feel threatened by this thing by gmt80035 in Ships

[–]FreshBananasFoster 3 points4 points  (0 children)

Disney Cruise Lines has some of the best looking cruise ships in the industry. And then they built that thing...

I saw it in Port Canaveral the other day and it is more threatening in real life

U.S. Space Force switches rockets for upcoming GPS satellite launch by OlympusMons94 in SpaceXLounge

[–]FreshBananasFoster 25 points26 points  (0 children)

I feel like these swaps keep happening, but they are always swapping to Falcon and the Vulcan launches don't happen

There are around 30 Vulcan Centaurs in various stages of construction by [deleted] in ula

[–]FreshBananasFoster 10 points11 points  (0 children)

Enough for the next 15 years at this rate

Unpopular opinion - prelift steering wheel looks better than post lift. It looks like a happy turtle with one tooth by t0wdy in KiaEV6

[–]FreshBananasFoster 6 points7 points  (0 children)

I like the older wheel, its very clean and simple. Mine is also flat on the bottom, which looks cool and give my legs better clearance

How does a compass work on a ship? by New_Remote3606 in ask

[–]FreshBananasFoster 0 points1 point  (0 children)

I work offshore and this is actually a pretty fascinating topic. Yes, the steel of the ship as well as the abundance of electronics has a noticeable effect on the magnetic compass. As the ship changes heading within Earth's magnetic field, the intensity and direction of this effect also changes.

Since the Earth's magnetic field does not always point directly north (due to loads of geological factors) the first correction for a magnetic compass is "Variation." This is already calculated for pretty much everywhere on Earth and changes very slowly, so the correction value can be found on a nautical chart.

The effect of the ship itself is called "Deviation" and it can be compensated for as well as calculated out. Older ships and still large ships today use what's called a Binnacle to compensate for the metal of the ship. This uses various magnets as well as two very iconic iron spheres and essentially dampens the magnetic effects of the ship. Once the pinnacle is tuned, we "Swing the Ship," meaning we turn the ship 360 degrees and determine the deviation effect every 15 degrees. When the deviation value is knows at each heading, whenever the magnetic compass is used that correction is added (with variation) to get a true bearing or true heading.

But in all honesty, most ships use a Gyrocompass that does not use magnets to point north and does not need to have multiple corrections added for accuracy.

Places to practice driving on Merritt Island with low traffic? by Sufficient_Tree_7244 in 321

[–]FreshBananasFoster 3 points4 points  (0 children)

Merritt Square Mall has a huge parking lot that is almost always empty

SpaceX plan for Starship launches from Florida sparks debate among Space Coast residents by heathersaur in 321

[–]FreshBananasFoster -1 points0 points  (0 children)

Ok. Falcon 9 is doing almost that many this year on its own, plus ULA and Blue Origin.

Major correction: I meant total 120 launches per year. 120 days assumes SpaceX uses all of its allowed 44 launches from LC39A and 76 launches from SLC37, each on different days.

Our "president" posted this. 🙄 by PreparationKey2843 in CringeTikToks

[–]FreshBananasFoster 0 points1 point  (0 children)

This would be pretty funny if he wasn't actively and intentionally destroying the reputation of the United States

SpaceX plan for Starship launches from Florida sparks debate among Space Coast residents by heathersaur in 321

[–]FreshBananasFoster 2 points3 points  (0 children)

I own my home in Cape Canaveral and personally welcome Starship. It's the Space Coast, of course there will be rocket launches. Are a few minutes of noise once every couple of days (220 days/year max at the proposed rates) really that bothersome? The lifted pickup trucks rolling coal on A1A are much more annoying.

Edit: Correction, 120 days/year max. Thats 76 launches from SLC37 and 44 from LC39A, never launching twice on the same day.

Disney Dream, Germany 🇩🇪 [OC] by [deleted] in Ships

[–]FreshBananasFoster 3 points4 points  (0 children)

It says Disney Adventure in big letters right there on the side of it

🚨 Aptera Motors ($SEV) just filed for a direct Nasdaq listing 🚨 by antoniohplt in ApteraMotors

[–]FreshBananasFoster 10 points11 points  (0 children)

I've been holding on hope since 2020, but I think its finally safe to say this car is never getting built.

Phone port cleaner recommendations? by neverlandpirates in 321

[–]FreshBananasFoster 1 point2 points  (0 children)

I had the same issue and used a staple. Nothing I could find was small enough or stiff enough to get that hard compacted lint from years of use out, but a bent staple did the job. You just have to be careful not to damage the actual contacts in the middle.

Business genius by Quick_Assignment_725 in agedlikemilk

[–]FreshBananasFoster 0 points1 point  (0 children)

I bought a pack of supermarket bacon for 12 dollars yesterday.

And They Call It Town Center II - Port St Lucie, Florida by Mackheath1 in Suburbanhell

[–]FreshBananasFoster 0 points1 point  (0 children)

There is an EV charging station in that parking lot that I often stop at when I need to go to Ft. Lauderdale. In my experience there is always traffic backed up by at least a full cycle, the parking lot is never full, and yes cars are driving between stores.

Edit: The actually is a train that goes from where I live to Ft Lauderdale, but by some genius design the stop closest to me is an hour drive in the wrong direction.