---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 12/12/06: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:59 AM - Uses for aluminum disks (TELEDYNMCS@aol.com) 2. 01:25 PM - Vne Speed (h&jeuropa) 3. 01:41 PM - Re: Vne Speed (Gilles Thesee) 4. 03:22 PM - Re: Vne Speed (Graham Singleton) ________________________________ Message 1 _____________________________________ Time: 06:59:07 AM PST US From: TELEDYNMCS@aol.com Subject: Europa-List: Uses for aluminum disks In a message dated 12/12/2006 2:58:39 AM Eastern Standard Time, europa-list@matronics.com writes: Hi Ian, Does anyone have a use for a number of (just under) instrument size aluminum disks? I made an aileron control lock out of two of the disks. Ease the edges first, then glue some of that non-slip shelf liner stuff to one side of each. Then, a short piece of string or a thin bungee cord between the two completes the lock. Slide the string into the gap between the aileron and the wing tip or the aileron and the flap and you have an effective, light weight aileron lock. I painted mine orange for high visibility. I used a hole saw fitted to my drill press to cut out my instrument holes once the location was established. The radio bay was cut using a jig saw first, then finalized with a Dremel tool and a fiber cut off wheel. Taping the surface with masking tape prevents marring of the surface with the jig saw. Regards, John Lawton Dunlap, TN N245E - Flying - 75.6 hours ________________________________ Message 2 _____________________________________ Time: 01:25:51 PM PST US Subject: Europa-List: Vne Speed From: "h&jeuropa" I have recently become aware that Vne is normally expressed in True Airspeed (TAS). According to Derek Piggotts Gliding text, it is important to limit indicated airspeed so the true airspeed is kept below the Vne placard speed. Otherwise there may be risk of flutter and structural failure. My XS Owners Manual states that Vne is 165 kts (page 2-1, issue 1). The same manual states that for a 914 typical performance is Cruise speed (100% @ 10,000 ft) 170 kts TAS (page 12-2, issue 1). But that is 5 kts greater than Vne!! That page also states Top Speed (sea level) 144 kts RAS. What is RAS? Is it a typing error (R is adjacent to T on a keyboard)? RAS is also referred to on the 912 performance page. What are the performance numbers for the MG? Brochure says 151 kts TAS max cruise speed for 914 at 10000 ft. So is 151 KTAS Vne? It is very easy to exceed 165 KTAS when descending from altitude. Should this be avoided? Jim Butcher XS N241BW Read this topic online here: http://forums.matronics.com/viewtopic.php?p=81100#81100 ________________________________ Message 3 _____________________________________ Time: 01:41:06 PM PST US From: Gilles Thesee Subject: Re: Europa-List: Vne Speed Jim and all, > > I have recently become aware that Vne is normally expressed in True Airspeed (TAS). According to Derek Piggotts Gliding text, it is important to limit indicated airspeed so the true airspeed is kept below the Vne placard speed. Otherwise there may be risk of flutter and structural failure. > Correct > My XS Owners Manual states that Vne is 165 kts (page 2-1, issue 1). 165 kt TAS at 100% power and MTOW is a respectable speed indeed. Has anyone on the list performed accurate measurement of TAS on his Europa (three GPS routes with recorded weight and OAT, etc.) ? > .... > > Brochure says 151 kts TAS max cruise speed for 914 at 10000 ft 151 kt TAS cruise ( @ 75% power) at MTOW is also a very very respectable speed, even at 10000 ft. But these are 'brochure numbers'. I would be much interested in real world numbers. Regards, Gilles Thesee Grenoble, France http://contrails.free.fr ________________________________ Message 4 _____________________________________ Time: 03:22:46 PM PST US From: Graham Singleton Subject: Re: Europa-List: Vne Speed Jim RAS is I assume Rectified Air Speed. Corrected for instrument and position errors. (The position of the static and pitot sensors. )TAS ( true air speed ) is IAS corrected for altitude and temperature and it will usually be higher, so you could still be below Vne. Graham h&jeuropa wrote: > >I have recently become aware that Vne is normally expressed in True Airspeed (TAS). According to Derek Piggotts Gliding text, it is important to limit indicated airspeed so the true airspeed is kept below the Vne placard speed. Otherwise there may be risk of flutter and structural failure. > >My XS Owners Manual states that Vne is 165 kts (page 2-1, issue 1). The same manual states that for a 914 typical performance is Cruise speed (100% @ 10,000 ft) 170 kts TAS (page 12-2, issue 1). But that is 5 kts greater than Vne!! That page also states Top Speed (sea level) 144 kts RAS. What is RAS? Is it a typing error (R is adjacent to T on a keyboard)? RAS is also referred to on the 912 performance page. > >What are the performance numbers for the MG? Brochure says 151 kts TAS max cruise speed for 914 at 10000 ft. So is 151 KTAS Vne? > >It is very easy to exceed 165 KTAS when descending from altitude. Should this be avoided? > >Jim Butcher >XS N241BW > > >Read this topic online here: > >http://forums.matronics.com/viewtopic.php?p=81100#81100 > > > > ------------------------------------------------------------------------------------- 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.