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Simon, I'm afraid the title of this thread has become a bit misleading. It started as a thread on David Piper's Ford F3L, but around page 2 Chris Melia posted pictures of the (now called) GTP-13, which I had sent him via email. Later on I joined on this thread myself. Ever since then I have the...

Thanks a lot, Ian. It was quite surprising (to me) to find many people cheerful when we passed them with the car. It must have to do - aside from looks - with the car's enjoyable sound. Unfortunately the video doesn't properly reproduce the sound. Sorry guys, we'll have to wait 'till next spring...

Anders, thank you very much. Greetings, Leo

Hello gentlemen, since the GTP-13 was quite recently approved for road use by the Austrian government, I wanted to share with you guys some scenes with the car on the road. Sorry for the poor audio and video quality, but at the time only my worn workshop-camera was at hand. We'll hopefully make...

Many thanks, Howard, for your very kind words. I will make and post some more pictures of the GTP-13 on the road as soon as I get a chance. Fabricating the wheels with the quality they exhibit requires quite some fixturing and setup effort. So it made sense to fabricate a second set (this...

Brian & Brian, many thanks! Here's a closer view of the car with the license plate. I'll make some better pictures during the next ride.

Hello Gentlemen, just wanted to add some news to this thread: Quite recently the GTP-13 was approved for road use by the Austrian government. This is one picture of the car's first ride on the road at dawn. With best regards from Austria!

Olivier, thanks for your appreciation. Yes, designing and building the GTP-13 was a father-son project and as you correctly stated, it took quite all our spare time for the past 8 1/2 years. So far everything runs very satisfactorily, except of some minor troubles that have to be sorted out...

Thank you, gentlemen, for your nice answers. Since I have been asked a few times now about the major differences between the GTP-13 and the historic Ford F3L: I have set up a > webpage < which compares some facts about the two cars. As you might expect I don't have that much data about the F3L...

Gentlemen, thank you for your kind replies, I am very honored. Keith: The presentation in Hangar-7 - even though I don't care for a public display very much - was the logical consequence of nearly a decade's work. The presentation wasn't open to the public, rather it was intended to say thank...

Keith, Mic, thanks a lot for your kind words. Following you find links to two videos of the premiere presentation of the GTP-13, which was celebrated on March, 11th, 2016 in Hangar-7 (Salzburg airport). https://youtu.be/zoUT7TrsgSA https://youtu.be/G7Oa7K1GWoU Best regards, Leo

Gentlemen, following you find a quite current (three months old) picture of the GTP-13, prior to painting. More current photos are coming soon. Best regards, Leo.

Hi guys, attatched you find some more recent pictures of our project. All of the structural hardware is done, currently we are dealing with the wiring, systems testing, and some minor fabrication work. At this point I want to emphasize that our car is built to look externally similar to the...

Hi Olivier, The gearbox we're using (see pictures) is a Quaife ZFQ, as sold by Chris Melia. We are looking to get the car road licensed, this however will be a tough test to take with the strict regulations here. We'll see how it goes. Best, Leo

Hi guys, thanks for your encouraging answers. Tom, 1) The wheels shown are my own design; Accordong to design they weigh short of 0.5 kg less than the aluminium wheels and additionally have less rotational inertia. I made some of the pieces for those wheels myself, but not all (including some...

Hi guys, some more update pictures on the "F3L-revival": With regards from Austria, Leo

Hi Z.C., the thought behind the safety factor is to cover for effects that are not taken account for in the mechanical and mathematical representation of the design. Such as shock loads, etc., depending on the case. The safety factor therfore strongly depends on the sophistication and...

Hi guys, sorry for my late reply but I had a very busy weekend. David: thanks for worrying so much. If you mention the 800°C however, you have to keep in mind that this is not what the rotor hat is subjected to. Just check the melting temperature of pure aluminium (alloys even melt at lower...

Hi guys, hi Dave, I agree that this is what most probably will happen if you load the brake disc, hub and spindle assembly up to failure. You might want to do this in order to determine wheter your designed component fulfills the design requirements or not. If you can produce braking torques...

Hi guys, thanks for your comments. @ Olivier: it is just in the same stadium as here: http://www.gt40s.com/forum/wings-wheels-keels/12585-ford-f3l-david-piper-9.html#post329252 @ Tom: If you are concerned about the surface near plastic deformation ("working in") of the rotor hat in the gap...