EGB 953 Posted October 9, 2023 Share Posted October 9, 2023 Good idea! will have to be later friday afternoon. Link to comment Share on other sites More sharing options...
Jon H Posted October 9, 2023 Author Share Posted October 9, 2023 30 minutes ago, EGB 953 said: Good idea! will have to be later friday afternoon. I abandon my post at 2 on a Friday. If the weather behaves next weekend i will be at the field? Link to comment Share on other sites More sharing options...
EGB 953 Posted October 9, 2023 Share Posted October 9, 2023 Perfect. Fingers crossed it looks good! sent a message to your inbox. Link to comment Share on other sites More sharing options...
Andy Stephenson Posted October 12, 2023 Share Posted October 12, 2023 Heads up for the BMFA annual bonanza of overpaying for ancient engines. Lot355 is a very early Laser 180 vee twin. Given the stupid high prices bid for lots in this auction last time, I expect this to be no different. Link to comment Share on other sites More sharing options...
Jon H Posted October 12, 2023 Author Share Posted October 12, 2023 1 hour ago, Andy Stephenson said: Heads up for the BMFA annual bonanza of overpaying for ancient engines. Lot355 is a very early Laser 180 vee twin. Given the stupid high prices bid for lots in this auction last time, I expect this to be no different. But they wont post stuff. Makes it a waste of time in my view. As for the 180v, bin it and buy the 200 they have on there instead. Its still old, but at least its still supported. Link to comment Share on other sites More sharing options...
Outrunner Posted October 13, 2023 Share Posted October 13, 2023 10 hours ago, Jon - Laser Engines said: But they wont post stuff. Makes it a waste of time in my view. As for the 180v, bin it and buy the 200 they have on there instead. Its still old, but at least its still supported. But collectors don't care if its supported or not despite your good advice. Link to comment Share on other sites More sharing options...
Jon H Posted October 13, 2023 Author Share Posted October 13, 2023 6 minutes ago, Outrunner said: But collectors don't care if its supported or not despite your good advice. Why would you want to collect a battered old heap? Makes no sense. 1 Link to comment Share on other sites More sharing options...
Outrunner Posted October 13, 2023 Share Posted October 13, 2023 2 minutes ago, Jon - Laser Engines said: Why would you want to collect a battered old heap? Makes no sense. I wouldn't, but some people do. Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted October 13, 2023 Share Posted October 13, 2023 14 minutes ago, Outrunner said: I wouldn't, but some people do. Like these, and us modellers who build / repair Spitfires,,, 1 Link to comment Share on other sites More sharing options...
Andy Stephenson Posted October 13, 2023 Share Posted October 13, 2023 20 hours ago, Jon - Laser Engines said: But they wont post stuff. Makes it a waste of time in my view... They will courier lots not collected at cost plus packaging. Link to comment Share on other sites More sharing options...
Don Fry Posted October 16, 2023 Share Posted October 16, 2023 Sorry Jon, memory slides, can you tell me, again, what Lasers, age, run on the low oil fuel mixtures. Link to comment Share on other sites More sharing options...
Jon H Posted October 16, 2023 Author Share Posted October 16, 2023 41 minutes ago, Don Fry said: Sorry Jon, memory slides, can you tell me, again, what Lasers, age, run on the low oil fuel mixtures. anything after 92. All of the discontinued 75's etc should stick with 15 1 Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted October 17, 2023 Share Posted October 17, 2023 At Jon's request, I've split some off topic posts into a new thread. Please bear in mind that this thread was set up for the express purpose of contacting Jon directly with technical questions relating to the use and maintenance of Laser engines so for anything else, either use the new thread [below], a relevant existing thread or start a new one. 2 Link to comment Share on other sites More sharing options...
Artto Ilmanen Posted October 30, 2023 Share Posted October 30, 2023 Jon / gents, I would like to have measure engine temperature on my Lasers. Maybe not as a permanent solution but more like testing that the baffling is doing its job as expected and so on, for peace of mind. Anyways, do you gents have any experience on telemetry sensors such as this one or similar: https://futabausa.com/product/sbs-01t/ It may be difficult to keep the wire sensor close to the cylinder head, though. Maybe the optimal solution would be to have a tab on the copper glow plug washer to which you could attach a temperature sensor. And thus get a more reliable reading. Unfortunately, I haven't seen any sensor like like that on the market so far. Any thoughts or first hand experience on some set-up to measure engine temperature? Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted October 30, 2023 Share Posted October 30, 2023 Blocked futaba lien,,, Link to comment Share on other sites More sharing options...
Artto Ilmanen Posted October 30, 2023 Share Posted October 30, 2023 5 minutes ago, Paul De Tourtoulon said: Blocked futaba lien,,, Sorry Paul, I'm not sure if I'm following you..? Link to comment Share on other sites More sharing options...
Dickw Posted October 30, 2023 Share Posted October 30, 2023 1 hour ago, Artto Ilmanen said: Jon / gents, I would like to have measure engine temperature on my Lasers. Maybe not as a permanent solution but more like testing that the baffling is doing its job as expected and so on, for peace of mind. Anyways, do you gents have any experience on telemetry sensors such as this one or similar: https://futabausa.com/product/sbs-01t/ It may be difficult to keep the wire sensor close to the cylinder head, though. Maybe the optimal solution would be to have a tab on the copper glow plug washer to which you could attach a temperature sensor. And thus get a more reliable reading. Unfortunately, I haven't seen any sensor like like that on the market so far. Any thoughts or first hand experience on some set-up to measure engine temperature? That Futaba sensor looks similar to one Jeti offers for their system. I have never used the Jeti temp sensor so can't offer any first hand advice, but attached is an image copied from the Jeti manual for that product that might give you some ideas. Dick Link to comment Share on other sites More sharing options...
Artto Ilmanen Posted October 30, 2023 Share Posted October 30, 2023 Thanks Dick, You are most likely referring to this: https://file.espritmodel.com/documents/pdf/jeti-mt300.pdf extract from the manual: "..Before tightening moisten the silicon tube with alcohol or white spirit in order to improve its sliding ability on the cables. Put the measuring object, for instance an engine cylinder, through the loop and tighten the loop strongly by means of the silicon tube in order to obtain a tight contact between the loop and the measuring object (for instance with cooling fins of an engine cylinder). After evaporation of the alcohol the silicon tube will firmly hold the loop tight. In order not to damage the sensor the dia. of the loop should not be smaller than 20 mm." Maybe this setup could work. I'm not sure if there are any Futaba FASStest compatible sensors other than genuine Futaba, though. But the principle of mounting the sensor can most likely be similar no matter what make sensor in question. Link to comment Share on other sites More sharing options...
Dickw Posted October 30, 2023 Share Posted October 30, 2023 (edited) 11 minutes ago, Artto Ilmanen said: ......................... I'm not sure if there are any Futaba FASStest compatible sensors other than genuine Futaba, though. But the principle of mounting the sensor can most likely be similar no matter what make sensor in question. SM Modelbau in Germany make sensors that are compatible with Futaba, but are mainly aimed at electric models. To get a temperature sensor you would have to use their UniLog 2 with their add on temperature sensor. Not a cheap solution, but different. https://www.sm-modellbau.de/UniLog-2-und-Zubehoer scroll down the page for their 300 degree temperature sensor I use quite a lot of their gear and it all works well for me. Dick Edited October 30, 2023 by Dickw Link to comment Share on other sites More sharing options...
Artto Ilmanen Posted October 30, 2023 Share Posted October 30, 2023 3 minutes ago, Dickw said: SM Modelbau in Germany make sensors that are compatible with Futaba, but are mainly aimed at electric models. To get a temperature sensor you would have to use their UniLog 2 with their add on temperature sensor. Not a cheap solution, but different. https://www.sm-modellbau.de/UniLog-2-und-Zubehoer scroll down the page for their 300 degree temperature sensor I use quite a lot of their gear and it all works well for me. Dick Thanks Dick! I will have a look on these Link to comment Share on other sites More sharing options...
Chris Walby Posted October 30, 2023 Share Posted October 30, 2023 Artto, I have been think about this for some time as I fly quite a few twins and was interested in using real time telemetry at events where tuning time is limited. Plus with flying slots its start and go + other noisy 2 strokes making a pair of Lasers (on the down wind leg) almost impossible to hear. Not sure measuring cylinder head temperature will tell you/me much as I suspect ambient air temperature and model air speed will determine the temp, plus if its hot/cold what does that mean? Possibly more reliable with a twin, but probably quite slow to register a temperature change from "normal" Perhaps somewhere on the exhaust might be more responsive? I am now thinking for a twin perhaps a comparison of prop RPM might indicate something going wrong? What are you trying to achieve? Link to comment Share on other sites More sharing options...
Ron Gray Posted October 30, 2023 Share Posted October 30, 2023 I use FrSky temp sensors to monitor the difference in temp between the 2 cylinders on my Laser in-line twins. Whilst I've not seen a big variation if I did then I could execute some low throttle dives to try and cool things down before landing. I have found them useful to tell me if my cooling ducting is working and as they are FrSky they are inexpensive too! Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted October 30, 2023 Share Posted October 30, 2023 Artto have a look at the Powerbox PBS-T250, but you'd need the programming lead to change the operation to Futaba. Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted October 31, 2023 Share Posted October 31, 2023 12 hours ago, Artto Ilmanen said: https://futabausa.com/product/sbs-01t/ It won't open for me Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted October 31, 2023 Share Posted October 31, 2023 20 minutes ago, Paul De Tourtoulon said: It won't open for me Paul opened fine for me, but just search for Futaba SBS-01T 1 Link to comment Share on other sites More sharing options...
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