Thread: D2 Recovery points

Any comments on the following recovery points.
The bracket is L shaped and of 8mm plate.

Front.pdf

Rear.pdf

Section.pdf

Could not get the photo of bracket in time but is a standard bracket with 3 holes for M12 bolts.
For the fornt I have to remove the rear portion.
The doubler plate has to be spaced to make up for chassis construction.

A bridle starp wust always be used for this setup.

Originally Posted by simonl8353

Rudolf, I like the simplicity of your design and the fact it allows the snatch/pull to be almost in line with the chassis. Looks good too.

To give it more of a tick, from a technical and mechanical perspective there would be a few questions relating to strength and load rating.

1. What grade plate did you use 250 or 350 or something else?
2. Have you done any mechanical calcs, if so what would you rate the bracket at and would it survive a snatch strap?
3. Any bench testing or real live testing performed in a controlled environment?
3. Assuming 2 or 3 was done, how did this rate against the std LR D2 factory recovery point which by most learned accounts should never be used for snatching (although I have no figures or statistics to demonstrate this).
4. Do you need to drill 3 x 12mm holes in the chassis rail to mount it?

The reason I ask is that I am considering a tow point (single sided) and cannot find one that will allow me to use it through the std LR tow point hole in the std D2 bumper. Your design looks like it could do that.

ps I like the glider too, but what is the F3B speed record out of curiosity. 60kmh, or 160kmh

No Grade was given for the steel so I assume 200Mpa.
No structural design yet as this is only a concept for me.
I am thinking of changing the bracket to a T shaoed one and bolting it to the side of the rail as well.
I would not use these brackets for towing as here by us and by you there are regulation covering this.

Michelle broke the RSA record at the worlds. 14.2s for the speed run makes it 152Km/h average. The world record is somewhere 0.5s faster than this. To think this is average and the entry speed into the circuit is around 200Km/h.
Australia came 10th in the F3B Worlds team comp but I dont know where RSA came.
A team is 3 pliots plus helpers and team manager.
AUS had a full anterage where NZ had a single pilot. Joe Wurts.
I met him briefly some years ago at the F3B WC in RSA. What a humble person.
Will never forget his kindness.

Cheers
Rudolf
Our highest placing was around 16th(Craig) where AUS made the top 10 for individuals.