---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 05/16/17: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:07 AM - engine support (mp.gamble) 2. 02:34 AM - Re: Airmaster whirlwind blades (Remi Guerner) 3. 03:11 AM - Re: engine support (jonathanmilbank) 4. 04:18 AM - Re: Re: Airmaster whirlwind blades (davidjoyce@doctors.org.uk) ________________________________ Message 1 _____________________________________ Time: 01:07:54 AM PST US From: "mp.gamble" Subject: Europa-List: engine support Can anyone tell me what tool is needed to fit the 4 engine support bolts - 912S engine mount to block? Thanks Mike Gamble Mono XS G-CFMP ________________________________ Message 2 _____________________________________ Time: 02:34:32 AM PST US Subject: Europa-List: Re: Airmaster whirlwind blades From: "Remi Guerner" David, I am not questioning your measurements but your comparisons are between two Woodcomp props, not between Airmaster/WarpDrive and the high twist Woodcomp. The low twist narrow blade Wood comp is notoriously bad as far as cruise speed is concerned. We even have one of our french Europa owner who recently went back from this prop to his old ground adjustable WD, because the Woodcomp was consistently reducing his cruise speed. Remi [quote="davidjoyce(at)doctors.org"]Remi, The comparisons I did between low & high twist woodcomp props were rigorous, all early in the day and over water to eliminate the risk of catching an early thermal. They were also all done approaching the test conditions from above, that is doing a shallow dive from something like 100ft above the chosen altitude and then waiting for the speed to stabilise whilst flying level. They showed a clear 5 kt advantage at low & middle altitudes Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469344#469344 ________________________________ Message 3 _____________________________________ Time: 03:11:21 AM PST US Subject: Europa-List: Re: engine support From: "jonathanmilbank" I used an Allen key/wrench for mine. Additionally you'll probably need to temporarily remove one of the inlet manifolds and maybe even a coolant elbow pipe connector on one of the cylinder heads to get access to one of the bolts. You'll probably also find that you need to slide a metal tube/pipe of some sort over the end of the Allen key to get leverage for tightening. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=469345#469345 ________________________________ Message 4 _____________________________________ Time: 04:18:53 AM PST US From: davidjoyce@doctors.org.uk Subject: Re: Europa-List: Re: Airmaster whirlwind blades Remi, I have no views nor evidence on the relative merits of different firms propellers, just strong views on the desirability & greater efficiency of high twist blades. Nevertheless I am surprised to hear your views on the low twist Woodcomp blades as they had a measured efficiency of 85% as I remember it, which I believe is an industry standard, and my plane certainly didn't hang about in comparison to others. I had in fact first become interested in Woodcomp back in 2000 when at the Prague fly out I saw the Europa company 914/Airmaster plane take off together with Tom Justic's 914/Woodcomp SR2000, with the latter climbing at what appeared to be at least 10 degree steeper gradient. It would make me wonder whether your friend had his pitch angles set appropriately. It would be good to have some rigorous comparisons done, and I would happily cooperate with my new Sr3000/N/W if someone has an Airmaster and we find they could be swapped over without any major trouble. Regards, David Joyce, GXSDJ On 2017-05-16 10:33, Remi Guerner wrote: > > David, > I am not questioning your measurements but your comparisons are between two Woodcomp props, not between Airmaster/WarpDrive and the high twist Woodcomp. The low twist narrow blade Wood comp is notoriously bad as far as cruise speed is concerned. We even have one of our french Europa owner who recently went back from this prop to his old ground adjustable WD, because the Woodcomp was consistently reducing his cruise speed. > Remi > > [quote="davidjoyce(at)doctors.org"]Remi, The comparisons I did between low & high twist woodcomp props were rigorous, all early in the day and over water to eliminate the risk of catching an early thermal. They were also all done approaching the test conditions from above, that is doing a shallow dive from something like 100ft above the chosen altitude and then waiting for the speed to stabilise whilst flying level. They showed a clear 5 kt advantage at low & middle altitudes > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=469344#469344 [1] > Links: ------ [1] http://forums.matronics.com/viewtopic.php?p=469344#469344 [2] http://www.matronics.com/Navigator?Europa-List [3] http://forums.matronics.com [4] http://wiki.matronics.com [5] http://www.matronics.com/contribution ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.