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Regent's Ground-Effect Vehicle Reimagines Coastal Travel

23 points rbanffy 3 days ago 13 comments

phillipseamore 2 days ago | parent

"The Seaglider is designed to handle ocean swells up to a meter and a half high" - that severely limits where it can be used or during which seasons.

jauntywundrkind 1 hour ago | parent

TBD but I'm hoping those constraints are largely in taxi mode! When it's flying it's much higher up:

> Like similar “Type A” WIGs, the Viceroy’s preferred altitude is about half the length of its 19.8-meter wingspan, so 10 meters above the water. Much above that and a WIG can no longer exploit its aerodynamic edge, and loses stability.

I really want something like this to work, ideally so successfully that it keeps scaling up. Theres such beautiful aerodynamic efficiency from WIG.

Also a huge fan of what looks like a very smart lift generating blown wing, which also could really help this get out of the water fast, give it good efficiency

jandrese 1 hour ago | parent

I guess you might be able to get around this problem if the vehicle can take off and land on a land based airstrip and then stay at 10m over the water. Otherwise that is a crippling limitation since you not only need the ocean to be relatively calm when taking off, but also when landing.

rbanffy 18 minutes ago | parent

Usually these planes take off and land on rivers, bays, and other protected shores with few waves.

sandworm101 5 minutes ago | parent

>> like this to work, ideally so successfully that it keeps scaling up.

There are hard scale issues. The wings must remain close to the water for ground effect to be a thing. But the thing still needs to bank to turn. That means one wingtip getting higher to the point it can lose GE lift, and the other lower to the point it might strike a bigger-than-average wave. The longer the wings, the less the craft can bank in a turn. Get too large and in-ground-effect flight becomes impractical/dangerous.

arjie 1 hour ago | parent

It would be cool to have a fast electric ferry service around the Bay Area. Ride your e-bike to the ferry terminal and get to the other side! Cool traffic dodge.

aeontech 1 hour ago | parent

Imagine a fleet of these as ferries between Hawaii's islands for example. Awesome stuff, best of luck to the team!

radiorental 1 hour ago | parent

Except for those pesky waves that Hawaii is known for.

I see this as more applicable in areas coastal metro areas with sheltered waterways and existing ferry systems.

ChrisMarshallNY 3 minutes ago | parent

Yup. There's a reason that every photo of these (admittedly cool) vehicles is on a clear day, over calm water.

wood_spirit 1 hour ago | parent

China has also been developing secret modern erkanoplans https://www.hisutton.com/Chinese-WIG-2025-07.html

adrianpike 19 minutes ago | parent

Everything old is new again: https://www.forbes.com/forbes/2001/1001/110.html

Havoc 11 minutes ago | parent

10m seems quite high for ground effect?

ChrisMarshallNY 5 minutes ago | parent

Here's hoping for many good-weather/calm seas days...