Citazione:
Originalmente inviato da DavidBurke  Thank you for the translation Piero, even the Google Translator likes it!'
I am not sure what this thread is about but to answer your question I am only interested in the WR because of the technical interest in new engine design. The speed in Australia is around 290+ with the usual RTF stuff ( Profi and/or Kalmikov ). The WR is 307 held by Kevin Morrisey of England using a HS-15 built by Peter Halman. This engine is interesting because the crankcase is investment cast from a wax produced by "3D Printing" from a CAD model. 
Obviously this is a good method for speedy modification as you do not need to make a complex mold at any stage. Also if something needs change this can be done without being trapped by what you can do to change an existing mold.
On my historical interests:
Can you remember where the Kosmic K-15 was assembled and packaged? Just need this so that I can end my article on the Origins of Gordon Burford's engine. The Kosmic box says "Milano - Pavia" but gives no details of who or where. From the broad description it probably means several sub-contract suppliers and maybe one assembly/distribution point?
Also do you have any photo's of old Rossi or OPS gravity casting processes? Need that to do the transfer passages on the Taipan crankcase gravity casting when it is cast at full height. Gordon Burford did not do this because he wanted to keep the price down by having only one man to do the casting. We on the other hand just wish to complete the history and have no problems with the cost of doing so.
Yours in Modelling,
David Burke. |
Dear David,
I have seen the above article of the new engine by Peter Halman two years ago when came out. Is a nice and fast engine. Of course I know Peter as well as Kevin Morrisey, British Champion and Recordman with the OPS 60 many times since 1974, when he was a saleman for Ron Irvine our first OPS / GB distributor from '72 till '82.
Yes all change and we are obliged to use, sand, gravity, die-cast , CAD/CAM molds and 3D Photolitography systems ! We used this CAD/3D for an outboard 0.12/2,11cc, never produced but shown in Nurnberg in 1996 and 1997 !
Probably I have solved my PC problems and so I will show some pictures of my Speed Models and engines. The F2A "all Italian" best speed with 288 Kmh., engine, model, propeller , is still of our OPS / Muzio Manfredi and Piero in Lucca 1993 ( Ricci Trophy ).
One of those models was equipped in 2010 with a geared front reduction.
Unfortunately I have not pictures of the gravity process.
Last question on Kosmic - Milano Pavia . All were made in Pavia ( town 50 Km. from Milano ) and the company name was Officina Meccanica Consiglio.
Traduzione Italiana seguirà . Saluti
Piero Muzio FAI 241