Lancia Motor Club

Model Technical and Interest => Appia => Topic started by: DavidLaver on 17 April, 2019, 09:55:24 AM



Title: Appia based formula juniors
Post by: DavidLaver on 17 April, 2019, 09:55:24 AM
Following a discussion on "Lancia picture of the day" I went looking (beyond the Dagrada that's well known).  The answer was "Facetti, Raf, Raineri and Volpini", only the last of which I'd heard of.

Raf sounds an amazing story...one to chase another day.

In italian

https://it.wikipedia.org/wiki/Formula_Junior_derivate_da_Lancia_Appia

With google on translation duties:

https://translate.google.co.uk/translate?sl=auto&tl=en&u=https%3A%2F%2Fit.wikipedia.org%2Fwiki%2FFormula_Junior_derivate_da_Lancia_Appia

Is it just me enjoying "poor" translation?   I rather liked this:  

"In '59 the Dagrada manufacturer uses the Appia engine, believing that this engine, with its hemispherical combustion chambers and its two camshafts in the crankcase, allows to obtain a good volumetric efficiency with the possibility of reaching high speeds of rotation. The Dagrada-Lancia Formula Junior single-seater front engine, with Giancarlo Baghetti at the wheel, portrayed in Monza immediately after the victory recorded in the Vigorelli Trophy (25 April 1960). However, the matter is not easy, especially due to the intricate shape of the intake and exhaust ducts. But the good and tenacious Angelo Dagrada remedies the problem with a chiselling job,"

"Chiselling job" is a phrase I look forward to using in a paddock somewhere.

There's a sentence "Also the change is of Lancia origin, but the matrix is ​​that of the Flaminia . "  Anyone here able to help with that?

"After a '59 on the sly" lost something in translation, but clear in context, one to enjoy.




Title: Re: Appia based formula juniors
Post by: williamcorke on 17 April, 2019, 01:19:50 PM

There's a sentence "Also the change is of Lancia origin, but the matrix is ​​that of the Flaminia . "  Anyone here able to help with that?


The gearbox is a Flaminia transaxle? Perhaps a more precise translation of 'matrice' would be 'casing'? On the other hand the Italian original could be badly written... not unknown on wiki.


Title: Re: Appia based formula juniors
Post by: stanley sweet on 18 April, 2019, 07:23:57 AM
'Chiselling job' is a great description. For years I'd imagined reworked ports being mirror smooth to assist airflow. In fact there's a roughness to aid turbulence to break up larger fuel droplets. In my UK motor club there was a retired Rolls Royce engineer who did this work for members. The reason that description struck a chord is because someone once said to me 'It looks like he's been a work with a chisel but it works brilliantly'. He was probably making a bit of a joke but the point is clear.


Title: Re: Appia based formula juniors
Post by: Richard Fridd on 18 April, 2019, 08:22:55 AM
So the roughness works in a similar way to dimpled golf balls travellling much further than smooth golf balls?


Title: Re: Appia based formula juniors
Post by: DavidLaver on 18 April, 2019, 01:37:38 PM

Sounds like its for atomisation rather than flow, but it reminds me of vortex generators.

45 seconds:

https://www.youtube.com/watch?v=dr_G4hbXSLQ

4mins something:

https://www.youtube.com/watch?v=eP-YUDe9HF0