---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Fri 10/17/08: 17 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:17 AM - connectors (Paul Stewart) 2. 02:50 AM - Fuel drain kit (Remi Guerner) 3. 03:09 AM - Re: connectors (Frans Veldman) 4. 04:53 AM - Re: connectors (Jim Brown) 5. 07:39 AM - Re: Fuel drain kit (Paul McAllister) 6. 08:06 AM - Re: Fuel drain kit (Gary Leinberger) 7. 09:35 AM - Re: connectors (Steve Pitt) 8. 09:35 AM - Re: Cooling & Cowling (Frans Veldman) 9. 10:57 AM - Re: connectors (Frans Veldman) 10. 11:00 AM - Re: Fuel drain kit (Jerry Rehn) 11. 12:05 PM - Re: Fuel drain kit (Robert C Harrison) 12. 12:16 PM - Re: connectors (Paul Stewart) 13. 01:01 PM - Re: Cooling & Cowling (Robert C Harrison) 14. 02:33 PM - Re: Cooling & Cowling (Paul McAllister) 15. 03:44 PM - Re: Cooling & Cowling (Frans Veldman) 16. 03:51 PM - Re: Cooling & Cowling (Frans Veldman) 17. 05:40 PM - Re: Fuel drain kit (Graham Singleton) ________________________________ Message 1 _____________________________________ Time: 02:17:54 AM PST US From: Paul Stewart Subject: Europa-List: connectors Anyone with nav/strobe units in wing tips - what have you used as electical connectors at wing root. The ones I got supplied are VERY heavy - looking for thoughts on anything more light weight. Regards Paul G-GIDY ________________________________ Message 2 _____________________________________ Time: 02:50:41 AM PST US From: "Remi Guerner" Subject: Europa-List: Fuel drain kit Hello Jerry The supplied drain kit (Mod 33) has one inconvenience: due to the length of the hoses from the tank to the drains, you must drain a lot of fuel before actually draining fuel from the bottom of the tank. One mod to the mod I made was to modify the fittings and use 4 millimeter hose instead of 8 mm. Therefore the dead volume is reduced by a factor 4 and the purging is more likely to be effective. Moreover, with the high fuel price we are experiencing now, there is some economic value to this change. Remi Guerner I just got the fuel drain mod and was wondering from those that have gone before me if there are any little tricks or quirks to this install? Thanks ________________________________ Message 3 _____________________________________ Time: 03:09:56 AM PST US From: Frans Veldman Subject: Re: Europa-List: connectors Paul Stewart wrote: > > Anyone with nav/strobe units in wing tips - what have you used as > electical connectors at wing root. The ones I got supplied are VERY > heavy - looking for thoughts on anything more light weight. You may want to look for "Molex" connectors. They are very lightweight and easy to assemble. They are available in all sorts of different amount of pins. Best known are the 4-pin ones that are used in the PC to connect the power to the harddisks. For your purpose, you are going to need 5 or 6 pin versions. Otherwise take a look at eBay. I found a Bulgarian source for army stock connectors. Very robust, with locking ring, high amp rating, and still quite light weight and small. I use them because they have 20 pins, so besides the nav/strobe it also connects the aileron trim, wing camera mount, and on the ground this connector dual duties to make a connection to the trailer (for ground power) to keep the batteries charged. It saves me a separate connector, and make it impossible to forget to disconnect before flight. ;-) The only downside is that the pins are positioned very close together and are solder only. Frans ________________________________ Message 4 _____________________________________ Time: 04:53:44 AM PST US From: Jim Brown Subject: Re: Europa-List: connectors Paul - I used boat trailer connectors. They are flat 4 wire connectors. - Jim Brown --- On Fri, 10/17/08, Paul Stewart wrote: From: Paul Stewart Subject: Europa-List: connectors Anyone with nav/strobe units in wing tips - what have you used as electical connectors at wing root. The ones I got supplied are VERY heavy - looking for thoughts on anything more light weight. Regards Paul G-GIDY //mail.yahoo.com ________________________________ Message 5 _____________________________________ Time: 07:39:01 AM PST US From: "Paul McAllister" Subject: Re: Europa-List: Fuel drain kit Hi Gerry, I recollect seeing an idea where folks had used the fuel tank outlets that Graham Singleton used to fabricate and put the drains right at the tank. I have a question for the forum. Has anyone ever actually drained water out of there tank? In the 4 years my aircraft has been flying I have never seen a drop. Cheers, Paul ________________________________ Message 6 _____________________________________ Time: 08:06:28 AM PST US From: Gary Leinberger Subject: RE: Europa-List: Fuel drain kit I have been flying for about 38 years - and always check my fuel for water - never found any - until last year once - so I keep checking. Gary Leinberger ________________________________________ From: owner-europa-list-server@matronics.com [owner-europa-list-server@matronics.com] On Behalf Of Paul McAllister [paul.the.aviator@gmail.com] Sent: Friday, October 17, 2008 10:37 AM Subject: Re: Europa-List: Fuel drain kit Hi Gerry, I recollect seeing an idea where folks had used the fuel tank outlets that Graham Singleton used to fabricate and put the drains right at the tank. I have a question for the forum. Has anyone ever actually drained water out of there tank? In the 4 years my aircraft has been flying I have never seen a drop. Cheers, Paul ________________________________ Message 7 _____________________________________ Time: 09:35:32 AM PST US From: "Steve Pitt" Subject: Re: Europa-List: connectors I have used RS connectors - you can get them in 2,3,4 etc way www.rswww.com ref 236-2984. Very light weight and inexpensive. I have my wing lights and stall warner through each side and although they will not stand heavy handling they are ideal for the connections - 2 1/2 years of derigging the aircraft so far. Regards Steve Pitt G-SMDH ----- Original Message ----- From: "Paul Stewart" Sent: Friday, October 17, 2008 10:16 AM Subject: Europa-List: connectors > > Anyone with nav/strobe units in wing tips - what have you used as > electical connectors at wing root. The ones I got supplied are VERY > heavy - looking for thoughts on anything more light weight. > > Regards > > Paul > G-GIDY > > > ________________________________ Message 8 _____________________________________ Time: 09:35:32 AM PST US Subject: Re: Europa-List: Cooling & Cowling From: "Frans Veldman" [quote:022580b62a="Jeff Roberts"]Since I struggled with the cooling on my 912-S Tri gear for so very long I thought I'd throw my thoughts into this subject. I have found the air cooling of the fins to be inadequate. If you look at the round inlets in relation to where the top of the engine sits you will find they are too low and too outside.[/quote:022580b62a] While fitting the cowling and planning some modifications to the lower cowling, I was also not happy about the position of the forward inlets. Thinking about it I got the idea to make Naca inlets in the top cowling, with a air flow promoting shroud, just above the fins, and close off the standard forward inlets. (I do not literally mean just putting some bid over it, but these positions can be used for other purposes, like landing lights.) These naca inlets in the upper cowl and closing off the standard inlets would have the following advantages: 1) No path for the air to escape directly under the engine (instead of over the engine). This air is not just lost, but also increases the pressure under the engine, hindering the air flow through the fins. 2) During flight, air will enter here and finds its way down through the fins to the exit at the rear of the lower cowling. 3) No more need for the (expensive?) Rotax shroud and the third nostril (another drag creating hole). 4) No more need for the gills on the side. The naca inlets are in the top, just above the fins, so warm air will escape naturally there once the engine is shut down. The cowling won't heat up. 5) From the naca shroud It is easy to make a small bypass to cool things like alternator regulator. There are direct and straight ways in the top cowling to almost every part that needs to be cooled. All these ducts can be glassed in the top cowling. 6) Lower drag. I believe the standard inlets are very draggy, with their sharp endings, and there is no room to make a ramp to slow the air down before letting it loose in the engine bay. With the naca inlets, there is sufficient room to make a rounded expansion where the air can slow down and expand, without creating much turbulence. 7) Easy to implement. Naca inlets can be bought, closing off a hole is easy too. I have yet to start with implementing this. Comments please, before I start cutting something that I'm going to regret later. ;-) Do I oversee something? Frans Visit - www.EuropaOwners.org ________________________________ Message 9 _____________________________________ Time: 10:57:59 AM PST US From: Frans Veldman Subject: Re: Europa-List: connectors Steve Pitt wrote: > > I have used RS connectors - you can get them in 2,3,4 etc way > www.rswww.com ref 236-2984. Very light weight and inexpensive. These are the molex connectors I wrote about. I would use the 6-pin versions for this purpose. 3 pins for the strobe, one for the shield, and the two others for the nav lights. You could of course combine the shield with the minus of the position lights, saving one pin, but this might create radio interference. It is better not to share anything with the strobe system. Frans ________________________________ Message 10 ____________________________________ Time: 11:00:56 AM PST US From: "Jerry Rehn" Subject: RE: Europa-List: Fuel drain kit Paul Thanks for the reply and I have never had water in 8 years. But our state is now mandating 10% alcohol in our auto gas. I know alcohol attracts water so I figured this may be another good reason to be concerned about water showing up. Does that make sense? Just another precaution that I believe can only help. Jerry -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Paul McAllister Sent: Friday, October 17, 2008 7:38 AM Subject: Re: Europa-List: Fuel drain kit Hi Gerry, I recollect seeing an idea where folks had used the fuel tank outlets that Graham Singleton used to fabricate and put the drains right at the tank. I have a question for the forum. Has anyone ever actually drained water out of there tank? In the 4 years my aircraft has been flying I have never seen a drop. Cheers, Paul ________________________________ Message 11 ____________________________________ Time: 12:05:47 PM PST US From: "Robert C Harrison" Subject: RE: Europa-List: Fuel drain kit Hi! Gerry /Paul I had just a little once but just recently on return from Europe I had some in the mini gascolator. However it was such a struggle getting the bowl off I didn't get to see how much but just where it had been because I spilt it all. Just a word of warning to one and all ....do not get any fuel down your ear it freezes the ear drum as it evapouates and creates an excruciating pain. Regards Bob Harrison G-PTAG -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Paul McAllister Sent: 17 October 2008 15:38 Subject: Re: Europa-List: Fuel drain kit --> Hi Gerry, I recollect seeing an idea where folks had used the fuel tank outlets that Graham Singleton used to fabricate and put the drains right at the tank. I have a question for the forum. Has anyone ever actually drained water out of there tank? In the 4 years my aircraft has been flying I have never seen a drop. Cheers, Paul ________________________________ Message 12 ____________________________________ Time: 12:16:42 PM PST US From: Paul Stewart Subject: Re: Europa-List: connectors Thanks for all the responses. Getting dangerously close to running out of jobs(!!) after 10 1/2 years!!! Regards Paul G-GIDY On 17 Oct 2008, at 17:34, Steve Pitt wrote: > > > > I have used RS connectors - you can get them in 2,3,4 etc way www.rswww.com > ref 236-2984. Very light weight and inexpensive. I have my wing > lights and stall warner through each side and although they will not > stand heavy handling they are ideal for the connections - 2 1/2 > years of derigging the aircraft so far. > Regards > Steve Pitt > G-SMDH > ----- Original Message ----- From: "Paul Stewart" > > To: > Sent: Friday, October 17, 2008 10:16 AM > Subject: Europa-List: connectors > > >> > >> >> Anyone with nav/strobe units in wing tips - what have you used as >> electical connectors at wing root. The ones I got supplied are >> VERY heavy - looking for thoughts on anything more light weight. >> >> Regards >> >> Paul >> G-GIDY >> >> >> >> > > ________________________________ Message 13 ____________________________________ Time: 01:01:08 PM PST US From: "Robert C Harrison" Subject: RE: Europa-List: Cooling & Cowling Hi! Frans I wouldn't be happy having rain entering the upper cowl when parked outside for long periods. However on my Jabiru installation I proved that Isolating all lower cowl intake air such as for oil cooler allowed the down draught of general cooling air to be more effective. Regards Bob Harrison G-PTAG -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Frans Veldman Sent: 17 October 2008 17:35 Subject: Re: Europa-List: Cooling & Cowling [quote:022580b62a="Jeff Roberts"]Since I struggled with the cooling on my 912-S Tri gear for so very long I thought I'd throw my thoughts into this subject. I have found the air cooling of the fins to be inadequate. If you look at the round inlets in relation to where the top of the engine sits you will find they are too low and too outside.[/quote:022580b62a] While fitting the cowling and planning some modifications to the lower cowling, I was also not happy about the position of the forward inlets. Thinking about it I got the idea to make Naca inlets in the top cowling, with a air flow promoting shroud, just above the fins, and close off the standard forward inlets. (I do not literally mean just putting some bid over it, but these positions can be used for other purposes, like landing lights.) These naca inlets in the upper cowl and closing off the standard inlets would have the following advantages: 1) No path for the air to escape directly under the engine (instead of over the engine). This air is not just lost, but also increases the pressure under the engine, hindering the air flow through the fins. 2) During flight, air will enter here and finds its way down through the fins to the exit at the rear of the lower cowling. 3) No more need for the (expensive?) Rotax shroud and the third nostril (another drag creating hole). 4) No more need for the gills on the side. The naca inlets are in the top, just above the fins, so warm air will escape naturally there once the engine is shut down. The cowling won't heat up. 5) From the naca shroud It is easy to make a small bypass to cool things like alternator regulator. There are direct and straight ways in the top cowling to almost every part that needs to be cooled. All these ducts can be glassed in the top cowling. 6) Lower drag. I believe the standard inlets are very draggy, with their sharp endings, and there is no room to make a ramp to slow the air down before letting it loose in the engine bay. With the naca inlets, there is sufficient room to make a rounded expansion where the air can slow down and expand, without creating much turbulence. 7) Easy to implement. Naca inlets can be bought, closing off a hole is easy too. I have yet to start with implementing this. Comments please, before I start cutting something that I'm going to regret later. ;-) Do I oversee something? Frans Visit - www.EuropaOwners.org ________________________________ Message 14 ____________________________________ Time: 02:33:19 PM PST US From: "Paul McAllister" Subject: Re: Europa-List: Cooling & Cowling Hi Folks, I have a similar question to Bob, Is it possible to have a NACA on the top of the cowl that would have some type of drain system that could handle rain when parked, or in flight ? Thanks, Paul ________________________________ Message 15 ____________________________________ Time: 03:44:14 PM PST US Subject: Re: Europa-List: Cooling & Cowling From: "Frans Veldman" Hi! Frans I wouldn't be happy having rain entering the upper cowl when parked outside for long periods. -----[/quote:66cffc2d56] The cowling has a slope upwards, so I don't think rain will enter it easily. The standard inlet also isn't waterproof. Besides this, I have seen Europa's with a naca inlet on the cowling, I believe it is for the 912S? Frans Visit - www.EuropaOwners.org ________________________________ Message 16 ____________________________________ Time: 03:51:06 PM PST US Subject: Re: Europa-List: Cooling & Cowling From: "Frans Veldman" Is it possible to have a NACA on the top of the cowl that would have some type of drain system that could handle rain when parked, or in flight ? [/quote:4340d7261f] The standard air inlet is far from waterproof during flight, me thinks. But yes, I think it is possible to have a drain system on a naca duct, especially when it is sloping upwards, like it would be on the front of the upper cowling. That is, while it is parked. During flight it would be different, but none of the Europa inlets is waterproof during flight, so we won't loose anything with the naca duct. Frans Visit - www.EuropaOwners.org ________________________________ Message 17 ____________________________________ Time: 05:40:32 PM PST US From: Graham Singleton Subject: Re: Europa-List: Fuel drain kit Remi Guerner wrote: > Hello Jerry > > The supplied drain kit (Mod 33) has one inconvenience: due to the > length of the hoses from the tank to the drains, you must drain a lot > of fuel before actually draining fuel from the bottom of the tank. One > mod to the mod I made was to modify the fittings and use 4 millimeter > hose instead of 8 mm. Therefore the dead volume is reduced by a factor > 4 and the purging is more likely to be effective. Moreover, with the > high fuel price we are experiencing now, there is some economic value > to this change. > > Remi Guerner This is what I did, (if the picture comes through) ;-) The drain screws into the AN914-1 fitting. 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