Just wondering if anyone here knows of any brilliant ideas to make it easier for older or mobility-impaired sailors to haul a land-yacht uphill across soft and uneven sand.
I'm thinking of something with electric motor/s and lightweight drive tracks that can be shared by participants at a Blokart club's beach sailing days, but it'd also need to be small enough and easily transported for a member to pack up and take it home. any ideas out there?
Is the Blokart based on 14" Tyres? If so that limits ground clearance if you stick to using them regardless of power or drive options on uneven or soft ground. So a more heavy duty solution that lifts the rear axle up might be needed?
If you can be happy with the height over ground then a simple option will be to drive the front wheel with a hacked Electric Scooter (so tyre on tyre). I have been casually keeping an eye out for a local used one as a parts donor as a walk of shame avoider for longer beach runs. Tuck it in behind the seat in a bag for a just in case and a simple clip/clamp for the front forks and a lever back to the driver for contact pressure and speed control. Driving a single rear wheel will almost certainly fail on sand.
Even buying bits new of AliX or Evilbay isn't that prohibitive. For a Club owned option this sort of thing might be ok for $$ vi.aliexpress.com/item/1005008140963283.html? then an over centre lifting frame for the axle?
I like your e-scooter drive idea for long trips back along a beach when the wind deserts us, but the real problem we have is with the aging members having difficulty hauling their carts up a ramp from the beach to the carpark. Particularly over soft sand at the top of the beach /bottom of said ramp.
I'm thinking we need something under the rear axle, driving from the rear of the kart, or otherwise the tug device would need to have quite large tracks to get traction to pull uphill in soft sand if pulling from the front wheel. I don't think the wheels themselves would ever get enough traction to be of any use in driving the kart.
Hoping to find something ready made (or easily modified to suit) that'll just help to give a little push, otherwise something like your kart drive axle idea may form the basis for something, if someone gets creative. Thanks.
Me and a mate were doing a run up the Coorong many years ago and the plan was to get to 28 Mile Crossing from Blackfords and call that done and get picked up. Going great fully powered on 5.5m kites then a tiny shower of rain and then the wind STOPPED 
at around 20 Miles up. Waited for 30 minutes and still nothing so we decided to trek out over the Dunes to the Road through the scrub.
Dragging and or carrying a 1.4m axled buggy, three kites and basic supplies for what was nearly 2km really was not cool and the Beers were well deserved later on.
More walk of exploration than one of shame. Ran across a Sunshine harvester long forgotten in the Dunes and other assorted farm junk being careful not to step on moving sticks.
That trek would've needed some serious battery power, if using an electric drive option!
Or several nice cold beers after doing it by muscle-power alone!
Yep, that's the sort of thing we'd be looking for! Preferably in an electric-drive version for simplicity.
I'm also thinking it'd need 4 grippy wheels (or rubber tracks) to get enough traction going uphill in the loose dry sand, but those wheels in the video do look good.
You should find those heavy bar treads on small self propelled Tillers or farm gear. I checked Interlink but they have cut down their tire range but shouldn't be to hard to find.
Same Crew but another build without the bar wheels.
