Sorry, I couldn’t resist the literal translation Google came up with. In German it means “to sort out the mess again”, but what I would like to ask you is how you would handle the situation of getting stuck in wet grass with an aircraft.
I guess pulling it out with a car or tractor is a good idea, but where would you fix a rope and what kind of rope would you prefer, a belt like, a cable, a classic rope or something different? Please mention if you have a type specific idea, because I think that an Aquila, Cirrus, C172 or PA28 might have different opportunities.
And of course because you normally don’t bring your own, what is normally available at grass airfields out there?
I have been stuck at least twice in remote locations with no tow available, once in muddy grass and once in sand.
With a PA28 I got under the wing on my hands and knees and put my back up flat on the lower side of the wing. By pushing upwards I was able to lift the main gear whilst someone else advanced the throttle (and or push/pulled on the airframe – I can’t recall exactly). I did this both times… fortunately, it was the main gear which had sunk into the surface and not the nose gear. This technique worked well, but the plane wasn’t heavy (1359 lbs empty and didn’t have much fuel).
Could be tricky with the nose gear or with a high wing! Bring the shovel and find some wood to use as a ramp?
A TB20 can be pulled out of wet muddy grass backwards with a rope fixed to the tie down ring under the tail.
Does only need Golf / Tiguan strength.
Don’t ask.
I’ve had to get my TB20 pulled out of muddy grass a few times. The most extreme case was at Southend Airport, at a now-defunct flight training outfit, after some heavy rain. One obviously cannot pull the nosewheel because it could so easily damage the mechanism or the engine frame or the firewall. I tied a rope around the main gears, with the middle of it going to a vehicle. The vehicle (a van) could not do it because the wheels would just spin. Then they brought a fire engine and that did it. I used the towbar at the same time to steer the plane. Horrible job and I have since avoided getting into that “grass after rain” situation.
Pulling it forward (rather than backward) makes proper use of the TB20’s trailing link gear.
Also the tail ring is not very strong. It is just attached to some thin metal in the tail section.
Since the ground pressure exerted by a pneumatic tyre equals the inflation pressure, consider lowering the tyre pressure – temporarily.
I am not sure how that helps with pulling the plane out of a rut, i.e. up a slope. You still have to lift its weight up that slope. The only better way would be to get a spade and dig away some soil in front of the wheels, to reduce the angle up which one has to pull it.
Yes, if the wheel has gone through the crust and up to the axle, you need a winch or a tow to get out, but lower tyre pressure may save it from going through again.
But where to tie the tow rope? Unless you have a glider tow release, I think that’s rather type-specific.
The not very helpful answer to Tobi’s question is probably: if in doubt, walk first, taxi later.
The operations and maintenance manual for my aircraft (Zlin 142) issued by the Hungarian Armed Forces (when it was their primary trainer / aeroclub plane) describes the method detailed in Peter’s post #04 for pulling by a ground vehicle, so I would use it as well.