I have a set of 325/85R16 XMLs in my shed. They are a very big tyre and I reckon there is no way you would run them as duals. They also need a 10" wide rim. They are a military tyre. Very expensive, if you can buy them.
The 255/100R16 XML is a brilliant tyre. Also expensive and difficult to get...
I flew sailplanes competitively in Australia for 25 years. We would expect about 10X the wing flex of that 767 during a normal flight.
The fatigue limits of aluminium are well known, but if you exceed them, it will break. The fatigue limits of composites are almost infinte, by camparison (and so...
I did not use any "corner pieces", just cut the aluminium bits to fit together.
The horizontals top and bottom of the bed-over were folded up because they are not 90 degrees.
And the 45 degree bits on the front L & R of the bed over are 3mm steel instead of aluminium to withstand the scrub...
These are not "emergency extraction" pressures, and the sidewall does not contribute unless in soft conditions, but the footprint increase with lower pressure is clear.
My pics, Michelin published data,
Never let that deter you from letting the air out. The difference is dramatic.
I happily let ours down to under 5psi to get out of a bogging and have never pulled one off a rim. Just treat them VERY carefully.
Did not get to try. Some locals arrange some "help". :) But I have successfully used it on other occasions.
They activated a PLB (Personal Locator Beacon) and the rescue authority went into full swing (at the tax payers expense) and there were small kids involved.
And it is NOT Covid :)...
In Australia there are engineers approved by the traffic authorities who can assess almost any change to a vehicle and approve it (or not). They then issue a modification plate which is affixed to the vehicle.
On the OKA, I run 305/70R19.5 Michelins. They have a high weight rating (over...
The photo is from one of our boggings, not the vehicle in the article.
This incident has received lots of coverage in Australia with lots of bits of information.
I think this is the third thread about it here at Expedition Portal.
Using a spare wheel as a winching point can work.
That vehicle has a 17,000lb winch at the front and a 12,000lb winch at the rear.
It appears that they may have already attempted the buried tyre trick, but it was too wet.
The registration process for PLBs and EPIRBs in Australia is mandatory and allows a lot of information to be included including travel plans, photos of the vehicle and emergency contacts. The authorities would have called those emergency contacts, so they knew EXACTLY who they were...