---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 12/05/06: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:55 AM - Re: Cooling diffuser (nigel charles) 2. 11:12 AM - Expensive gear up landing () 3. 11:46 AM - Re: Expensive gear up landing (Tom Friedland) 4. 12:41 PM - Re: Expensive gear up landing (JEFF ROBERTS) 5. 01:57 PM - Re: Expensive gear up landing (Duncan & Ami McFadyean) ________________________________ Message 1 _____________________________________ Time: 05:55:32 AM PST US From: "nigel charles" Subject: RE: Europa-List: Cooling diffuser >My question regarding cooling on the ground is because all Rotax equipped Europas are known to overheat very quickly on the ground. I know some guys who say they do not overheat, but I have often observed them taxiing very fast to the holding point to be sure they are aloft before reaching the boiling point. Again the design of the Europa cowl is not optimal but cooling in flight is very effective. On the ground however it does not work properly. I am now convinced that the main cause for this poor cooling on the ground is the propeller. Most Europas are fitted with Warp Drive props or Airmaster hub Warp Drive blades combination. Those blades are narrow at the root and not very much twisted. Therefore they do not provide a lot of air flow where the air inlets are located. On the other hand, most MCR are using the MT prop whose design is just the opposite: very wide blades at the root and a lot of twist which is a lot more effective ventilator. < I think Remi's idea of using the cooler flap to increase cooling on the ground and reduce it in the air is great. However, although I have a Rotax 912S with Airmaster prop, I do not get significant cooling problems on the ground even when the OAT is up to 30degC. Cooling and cowl design seems to be one of those areas where even with identical setups we all get different results. One thing that is certain with the Rotax is that it has a tendency to get hot when the initial flight testing is done in the summer months. I found that the engine took about 25 hours to run-in fully, after which the oil and coolant temperatures dropped significantly. Nigel Charles ________________________________ Message 2 _____________________________________ Time: 11:12:27 AM PST US Subject: Europa-List: Expensive gear up landing From: Boy, 1 expensive gear up landing! http://www.zianet.com/tedmorris/dg/bombers4.html Ron Parigoris Do not archive ________________________________ Message 3 _____________________________________ Time: 11:46:44 AM PST US From: "Tom Friedland" <96victor@gmail.com> Subject: Re: Europa-List: Expensive gear up landing Why did they bother to repair it? The B1B has never had a use other than gobbling huge amounts of cash... Tom On 12/5/06, rparigor@suffolk.lib.ny.us wrote: > > > Boy, 1 expensive gear up landing! > > http://www.zianet.com/tedmorris/dg/bombers4.html > > Ron Parigoris > > Do not archive > > ________________________________ Message 4 _____________________________________ Time: 12:41:33 PM PST US From: JEFF ROBERTS Subject: Re: Europa-List: Expensive gear up landing I cannot believe such an expensive aircraft did not have an automatic backup landing gear system of some sort. Our tax dollars at work wisely again I see. Jeff N128LJ On Dec 5, 2006, at 1:46 PM, Tom Friedland wrote: > Why did they bother to repair it?- The B1B has never had a use other > than gobbling huge amounts of cash... > - > Tom > > - > On 12/5/06, rparigor@suffolk.lib.ny.us >> =========== =========== =========== >> ________________________________ Message 5 _____________________________________ Time: 01:57:19 PM PST US From: "Duncan & Ami McFadyean" Subject: Re: Europa-List: Expensive gear up landing Amusing how the (over?)-use of safety equipment becomes progressively less as the work proceeds! Duncan mcf do not archive ----- Original Message ----- From: Sent: Tuesday, December 05, 2006 7:11 PM Subject: Europa-List: Expensive gear up landing > > Boy, 1 expensive gear up landing! > > http://www.zianet.com/tedmorris/dg/bombers4.html > > Ron Parigoris > > Do not archive > > > ------------------------------------------------------------------------------------- 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.