Go to any supplier of Aviation grade wire and ask for some 2.3mm wire..... You will get a instant question fired at you, " What gauge is that mate"
In aviation AWG is the standard measurement . Ben <Shocking sparkie> ________________________________________ From: [email protected] [[email protected]] on behalf of Peter F Bradshaw [[email protected]] Sent: 04 September 2012 12:02 To: Discussion of issues relating to Soaring in Australia. Subject: Re: [Aus-soaring] Radios, fuses BNC wiring etc Hi; I assume that when you say "guage" you are talking AWG. Because now days wire is specified by cross section area I have put in a link to the AWG to mm^2 conversion: http://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html On Mon, 3 Sep 2012, Ian Mc Phee wrote: > Over past few months I have seen many problems and it all came to a head > this weekend when a person reported blade fuse was OK but it must have been > heated and thus became resistive, A new fuse solved the problem. 30 years > ago a guy was having trouble with his Borgelt acting like a windscreen > wiper, and Mike said "change the fuse" and it was then perfect. > Here are some recent problems > > 1 A BNC aerial connector would spin like a top and somebody had used a > piece of solder wound around the wire and fitting was done up on that!!!! - > Replaced with crimp BNC and SWR now 1.2 to 1 > 2 Another had used a BNC with screw driver connection- they are the lowest > of the low in my opinion and should be banned in gliding.. > 3 A winch aerial had a BNC shorting out at radio end and thinking I had > found the trouble I almost left it but then thought best to check aerial end > and some fool had used a welder and totally melted the insulation at aerial > end. > 4 A new glider clearly had a faulty aerial in fin and on checking SWR was a > hopeless 3 to 1 > 5 I checked a base radio recently and soon found a poor SWR and it turned > out to be the aerial Base connector bought from Dick Smith and was from > Mobile One and had a dry joint on connector. Resoldered and now radio is > just amaizing (SWR 1.1 to 1) and it is a 30 year old Terra 360!!!! > 6 An open Libelle and a Cirrus Std both had faulty aerial in fin (those > gliders with an adjustor at base of fin) My only solution is an aerial in > fuse at about the trailing edge and make up a X of ground plane > 7 After the 3rd exchange of radio I drove for 7 hours when I was really > sick a few years ago and only to find a piece of 22g wire in the power > circuit Change all wire into 16 G wire and bingo it was strength 5. Not > good enough and this was a $200K aircraft. > > I had Dennis Stacey with me over the weekend and we discussed the radio > problems within gliding and really something must be done and I support > Dennis if he acts as present system in gliding is just not good enough. . . > > I really believe ALL CLUBS should get a BNC crimp tool and a bag of BNC > connectors with strain relief. Also also buy a SWR meter or atleast be able > to borrow same from somebody.It is not rocket science how to do a BNC or use > a SWR meter. Then ALL gliders should have SWR test in the next 12 months > ideally and must all be checked within 3 years (bit like a GA instrument 8 > check) This ALL gliders includes NEW gliders as well. > > Secondly ALL gliders must have all radio power wires minimum size 18g (I > prefer 16G for 2 seater).I hate to say it but I find an electrician is not > the person to make up a glider harness as they do not read the manual. > > Thirdly lets use say 15A quality circurit breakers attached to battery and > QUALITY circuit breakers on the radio at least. > > Finally check batteries annually after a bit of a load say a 12 v brake > light bulb for say 1 hour then check voltage while xmitting and replace crap > batteries PLEASE. > > Personally I will only use aircraft wires in a glider harness What is $20 in > the cost of a install and >80% of problems are the install and NOT the radio > even a Microair!!!. > > Ian McPhee > 0428847642 > I do have many tricks with older radios so please make contact And if you > have a Becker 3201 which looses its memory please replace battery NOW as it > could well leak internally and wreck radio. Otherwise they are a bullet > proof radio. > Cheers -- Peter F Bradshaw: http://www.exadios.com (public keys avaliable there). Personal site: http://personal.exadios.com "I love truth, and the way the government still uses it occasionally to keep us guessing." - Sam Kekovich. _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
