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ACRO E-mail Archive Thread: FW: engine problem finally solved [International Aerobatic Club] [Communications] [Aerobatics Images] Disclaimer: These aerobatics pages are developed by individual IAC members and do not represent official IAC policy or opinion. |
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Thread: FW: engine problem finally solved
Message: FW: engine problem finally solved
Follow-Up To: ACRO Email list (for List Members only)
From: Salvadori Luca <lsalvadori at batman.laben.it>
Date: Tue, 13 Feb 1996 15:06:43 UTC
---------- From: Salvadori Luca To: 'IAC Mailing List' Subject: RE: engine problem finally solved Date: Monday 12 February 1996 8.56 >Hi Guenther, >What is exactly Your prop problem? > >Luca Salvadori <salvadori.l at laben.it> >---------- >From: gei >To: iac >Subject: Re: fuel tank >Date: Tuesday 19 December 1995 20.44 >My tank is jus fine now, however my engine problem is still >there -- Nobody out there with an idea why my prop would be >surging? Hi Guenther, Nice to heve good news fro You! Well, maybe You remember that some months ago I advised You to check governor... I am happy that this was finally useful! In fact, governor is one of most likely causes of oil pressure fluctuations, as my experience (and that of my colleagues) has shown, and consequencies can be also very hard and not limited to disappointment. I've experienced a near hull loss on a CAP-20 of my Club this summer, when a bad governor (12hrs since full overhaul...) broke in flight during aerobatic training and put prop to null pitch. Engine suddenly roared to 3100+RPM and prop mast cracked because of overspeed (maximum allowed is 2900RPM), releasing all engine oil in a few seconds. Fortunately blades did not separe from mast and pilot (not me, fortunately: I would have had a hearth attack!) succeeded in returning from training zone (some 6NM away from airport) and landed safely. Engine is now exposed in Club House as a precious monument to Mr. Lycoming, since it ran some 8min without any oil before stopping. So, we are now very careful to any prop/governor misfunctioning: for all friends, WARNING! YOUR PROP CAN KILL YOU! Regarding mechanics, do not be depressed: often they are not pilots and have no idea of what really happens on the aircraft on the air. I think that a mechanic SHOULD BE a pilot also. Fly high (and overhead!) L.Salv.