---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Sun 05/15/11: 8 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:47 AM - throttle actuator authority (Glenn Rainey) 2. 06:12 AM - Re: throttle actuator authority (Charlie Laverty) 3. 06:53 AM - Re: throttle actuator authority (Robert Borger) 4. 11:10 AM - Faulty fuel gauge (Frank Mycroft) 5. 04:13 PM - Re: throttle actuator authority (Bud Yerly) 6. 04:23 PM - Re: Should top wing skin be simulated when bonding on wing-profile jig (Bud Yerly) 7. 04:50 PM - Re: Faulty fuel gauge (Bud Yerly) 8. 07:53 PM - Crimping tools (Fergus Kyle) ________________________________ Message 1 _____________________________________ Time: 04:47:14 AM PST US From: Glenn Rainey Subject: Europa-List: throttle actuator authority Setting about carb' rebalance (912) we were puzzled to find the setup unable to achieve full throttle arm position at the carb - i.e. we are about the width of a 1 UKP coin short of the full throttle stop ~3 mm, and in violation of the rotax setup instructions. Tracing this geometrical conundrum back it appears that the slot in the throttle 'quadrant' plate in the cockpit is too short by about ~2cm. Has anyone encountered this? The build manual does not indicate dimensions of the throttle lever, so either there is a mal-position of holes in the arm, or the slot was too short to start with, or both. We have not yet opened the throttle lever box. The aircraft has over 400hrs of normal ops, but we worry we might be a tad short of full rated T/O power. There was a small stop installed at idle (cockpit), however with this removed the problem remains. Glenn Rainey Cumbernauld, Scotland G-OJHL classic monowheel ________________________________ Message 2 _____________________________________ Time: 06:12:56 AM PST US From: "Charlie Laverty" Subject: Re: Europa-List: throttle actuator authority hi I had a similar situation, I found that I had slotted the plate at at 90 degrees & when pushed forward the lever comes down at a angle on the top corner. I removed this with a swiss file plus a little bit & got full travel. The idle stop is required to prevent strain on the cable thimble attachement on the carbs. charlie laverty. -------------------------------------------------- From: "Glenn Rainey" Sent: Sunday, May 15, 2011 12:43 PM Subject: Europa-List: throttle actuator authority > > Setting about carb' rebalance (912) we were puzzled to find the setup > unable to achieve full throttle arm position at the carb - i.e. we are > about the width of a 1 UKP coin short of the full throttle stop ~3 mm, > and in violation of the rotax setup instructions. > > Tracing this geometrical conundrum back it appears that the slot in the > throttle 'quadrant' plate in the cockpit is too short by about ~2cm. Has > anyone encountered this? The build manual does not indicate dimensions of > the throttle lever, so either there is a mal-position of holes in the arm, > or the slot was too short to start with, or both. We have not yet opened > the throttle lever box. The aircraft has over 400hrs of normal ops, but we > worry we might be a tad short of full rated T/O power. > > There was a small stop installed at idle (cockpit), however with this > removed the problem remains. > > > Glenn Rainey > Cumbernauld, Scotland > G-OJHL > classic monowheel > > > ________________________________ Message 3 _____________________________________ Time: 06:53:57 AM PST US Subject: Re: Europa-List: throttle actuator authority From: Robert Borger Glenn, If you have sufficient space between the end of the throttle lever and the face of the instrument panel and all that is preventing full throttle travel it the slot in the top of the throttle quadrant, then get a thin file and gently file the slot forward enough to obtain your full throttle opening. It shouldn't take much additional movement of the throttle lever to get your 3mm at the carbs. Be sure you replace your throttle lever idle stop as required by Rotax. Blue skies & tailwinds, Bob Borger Europa Kit #A221 N914XL, XS Tri-Gear, Intercooled 914, Airmaster C/S Prop http://www.europaowners.org/forums/gallery2.php?g2_itemId=60232 http://www.biplaneforumgallery.com/index.php?cat=10046 Europa Flying! 3705 Lynchburg Dr. Corinth, TX 76208 Home: 940-497-2123 Cel: 817-992-1117 On May 15, 2011, at 6:43, Glenn Rainey wrote: > > Setting about carb' rebalance (912) we were puzzled to find the setup unable to achieve full throttle arm position at the carb - i.e. we are about the width of a 1 UKP coin short of the full throttle stop ~3 mm, and in violation of the rotax setup instructions. > > Tracing this geometrical conundrum back it appears that the slot in the throttle 'quadrant' plate in the cockpit is too short by about ~2cm. Has anyone encountered this? The build manual does not indicate dimensions of the throttle lever, so either there is a mal-position of holes in the arm, or the slot was too short to start with, or both. We have not yet opened the throttle lever box. The aircraft has over 400hrs of normal ops, but we worry we might be a tad short of full rated T/O power. > > There was a small stop installed at idle (cockpit), however with this removed the problem remains. > > > Glenn Rainey > Cumbernauld, Scotland > G-OJHL > classic monowheel ________________________________ Message 4 _____________________________________ Time: 11:10:04 AM PST US From: "Frank Mycroft" Subject: Europa-List: Faulty fuel gauge I have a capacitance fuel gauge sender in a tube behind the baggage compartment, and a VDO gauge on the panel. For some reason the gauge refuses to read more than about 5/8ths full even when the tank is brimming. I had this fault intermittently last summer, but after about an hour's flying the fault corrected itself and the reading returned to normal. Once the tank really is below 5/8ths full the gauge starts functioning normally right down to empty. The vent appears to be clear and blowing down it makes no difference. It was recently completely emptied when I was replacing a fuel pipe, so there is no foreign substance in the tube. The wiring appears to be sound. It's as though the top part of the probe is inneffective, but as I don't understand these things I would welcome advice. should I pull the capacitance tube apart to look at it? Frank Mycroft ________________________________ Message 5 _____________________________________ Time: 04:13:02 PM PST US From: "Bud Yerly" Subject: Re: Europa-List: throttle actuator authority Glenn, The throttle slot is cut by the builder. Follow the build manual and consider following the Rotax manual also. I build into the 914s a stop for 100% and ensure the forward slot will just bend the throttle cables at full 115%. For idle, I put a #10 nutplate and a 10-32 flat head screw (a 525 10R-8 to 12 will work also) which is sufficiently long to stop the throttle just as the carb idle stop is contacted. Those with vernier style throttles have a bit of a chore. You must come up with some method to stop from bending the idle stop which is a very common rough running and engine failure problem. Please consult the manual and pull the throttle box from the cockpit module and get the throw correct. At the end of a project, when our attention to detail should be peaked and our research impeccable, we all make minor mistakes. Double check to be sure. I have never had a problem with the stock throttle operating flawlessly. Regards, Bud Yerly Europa Tech Support Custom Flight Creations, Inc. www.customflightcreations.com (813) 653-4989 ----- Original Message ----- From: Glenn Rainey To: europa-list@matronics.com Sent: Sunday, May 15, 2011 7:43 AM Subject: Europa-List: throttle actuator authority > Setting about carb' rebalance (912) we were puzzled to find the setup unable to achieve full throttle arm position at the carb - i.e. we are about the width of a 1 UKP coin short of the full throttle stop ~3 mm, and in violation of the rotax setup instructions. Tracing this geometrical conundrum back it appears that the slot in the throttle 'quadrant' plate in the cockpit is too short by about ~2cm. Has anyone encountered this? The build manual does not indicate dimensions of the throttle lever, so either there is a mal-position of holes in the arm, or the slot was too short to start with, or both. We have not yet opened the throttle lever box. The aircraft has over 400hrs of normal ops, but we worry we might be a tad short of full rated T/O power. There was a small stop installed at idle (cockpit), however with this removed the problem remains. Glenn Rainey Cumbernauld, Scotland G-OJHL classic monowheel http://www.matronics.com/Navigator?Europa-List http://www.matronics.com/contribution ________________________________ Message 6 _____________________________________ Time: 04:23:15 PM PST US From: "Bud Yerly" Subject: Re: Europa-List: Should top wing skin be simulated when bonding on wing-profile jig Greg, I find that measuring the wing skin thickness and using spacers to be the idea way to set the wing incidence when using the incidence board. You will notice that the wing skin has about a 1/4 inch of foam but that foam ends before the root rib. The skin is about 6 layers thick at the root or about a popsicle stick. The big thing is to get both wings the same. Get anal about it and use a good digital level, the same incidence board, a spacer set about 2 inches in front of where the rear pin goes, and I even hold the level with the digital screen facing the same way at the same exact position on the incidence board. Then, before I glue it final, I step back and check by eye, the lower skin of each wing of the aircraft from behind to verify that the bottom of the wings both are at the same angle. See my website for trimming the Europa. Regards, Bud Yerly Europa Tech Support, Custom Flight Creations, Inc. www.customflightcreations.com (813) 653-4989 ----- Original Message ----- From: Greg Fuchs To: europa-list@matronics.com Sent: Saturday, May 14, 2011 6:16 PM Subject: Europa-List: Should top wing skin be simulated when bonding on wing-profile jig > To Any/All builders, Before bonding the wing profile jig on the upper part of the wing (when installing flaps on the wings), is it assumed that the upper wing skin thickness should simulated with a suitable spacer such as popsicle sticks or such? The jig, when placed on the wing root, lines up with the indentation where the top wing skin would be, at the rear of the wing. I placed lately taped-in sticks at the rear of the wing, where the jig will be set, to simulate the top skin, in anticipation. The difference between both ways is only in the 1-2 mm area, but anyhoo.. Including spacers looks like it would -slightly- increase the reflex of the flap. Just trying to get a feel for what others have done, or interpreted this move. A short search on matronics did not eek out any results. Thanks in advance, Greg http://www.matronics.com/Navigator?Europa-List http://www.matronics.com/contribution ________________________________ Message 7 _____________________________________ Time: 04:50:27 PM PST US From: "Bud Yerly" Subject: Re: Europa-List: Faulty fuel gauge Frank, I too have had some inconsistencies but mine seems to be a result of differences in fuel. With Mogas (auto 94 octane fuel), My Westach gauge with Princeton 5-S sender was perfect, but when I began using 100LL my fuel gauge has been inconsitent on the low side. I have to recalibrate everytime I switch gas, and with only half a tank it is awful. Luckily the sight gauge works as does the JPI fuel totalizer. Your system of a tube located behind the baggage compartment is a bit different, and I would check that the tube does not have a bubble in it. In flight, the bubble may become dislodged. Since it is behind the baggage bay, it may not be visible to validate there is no bubble. Also if you have the sensor tube detached from the sender circuit, then the small vent hole in the outer aluminum tube may be leaning against the fuel tube preventing full venting of the capacitance tube. That said, if all is well behind the bulkhead: Provided you have not been switching fuels, and since the problem is with only the upper end, it does sound like a bad sender. The Princeton, Skysport and Westach probes are not serviceable. They are remove and replace items I am afraid. Regards, Bud Yerly Custom Flight Creations, Inc. www.customflightcreations.com (813) 653-4989 ----- Original Message ----- From: Frank Mycroft To: europa-list@matronics.com Sent: Sunday, May 15, 2011 2:06 PM Subject: Europa-List: Faulty fuel gauge I have a capacitance fuel gauge sender in a tube behind the baggage compartment, and a VDO gauge on the panel. For some reason the gauge refuses to read more than about 5/8ths full even when the tank is brimming. I had this fault intermittently last summer, but after about an hour's flying the fault corrected itself and the reading returned to normal. Once the tank really is below 5/8ths full the gauge starts functioning normally right down to empty. The vent appears to be clear and blowing down it makes no difference. It was recently completely emptied when I was replacing a fuel pipe, so there is no foreign substance in the tube. The wiring appears to be sound. It's as though the top part of the probe is inneffective, but as I don't understand these things I would welcome advice. should I pull the capacitance tube apart to look at it? Frank Mycroft http://www.matronics.com/Navigator?Europa-List http://www.matronics.com/contribution ________________________________ Message 8 _____________________________________ Time: 07:53:38 PM PST US From: Fergus Kyle Subject: Europa-List: Crimping tools Graeme Bird, You're right I was being too cute. For signals wires only (anything under 3A), I have found my favourite connector - the DE-9 Subconnector. I can connect up to 9 circuits through it in as many minutes with the S904S/S904P oins and sockets and the B and C Specialty RCT-3 crimper. Fit the wire end into the pin, slide the crimper over the end till it's seated and squeeze. Hope that's better Ferg ------------------------------------------------------------------------------------- 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.