J.N. Posted February 23, 2010 Share Posted February 23, 2010 Dear Timbo, Thankyou for the prompt response. It is always the same, no matter how many times I look at what I have written as soon as I press the send button I think, oh dear. I should have stated that the receiver will be powered by its own switched battery and will be switched off on landing (as I do with I.C.). The question I should have asked was, in the above circumstances is it a safe procedure ? An indirect but most important reminder in your email was for me to ensure I can easily get at the motor battery and connections. I have just started to build from a plan and already earmarked a place for the RX battery and externally operated RX switch. At this early stage of construction your timely reminder gives me the opportunity to make any modifications necessary to ensure easy access. I have re-read this a number of times and altered it twice and yet, I still hesitate to press the button. Here Goes. Thanks.Posted by Timbo - Administrator on 23/02/2010 10:53:40:On all but the very largest or highest powered setups ( where heavy isolater switches /bridging plugs etc can be deployed ) the easiest and safest way is to simply unplug the main flight battery immediately after landing. Switching off the tx should NOT be relied upon, and besides, the model should be always be switched off before the Tx.....just as with IC. Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted February 23, 2010 Author Share Posted February 23, 2010 LOL no worries JN in fact my answer remains the same - switching off the radio supply battery via a switch is not isolating the main battery to motor and this is what is needed for total safety. Most ESCs these days will refuse to "boot up" unless they see a valid, low throttle signal from the Rx, but that is certainly not a guarantee that they wont.As you havelaso already identified, an easy method of disconnecting and removal of the main power battery is needed for charging anyway, so no big deal to make access to the main leads a feature of the build. It is - simply - the ONLY way to be sure that the motor will not spring into life. Quote Link to comment Share on other sites More sharing options...
steve jones 7 Posted February 25, 2013 Share Posted February 25, 2013 Hi Tim. Amazing resource, this! I'm getting there...... however, not being of the texting generation I don't know what these abbreviations mean, all found in this thread. sorry to be a pain. UBEC - what kind of BEC is that? HTH? IYSWIM???? Is there a glossary page somewhere? Keep up the good work. Steve Quote Link to comment Share on other sites More sharing options...
Steve Hargreaves - Moderator Posted February 25, 2013 Share Posted February 25, 2013 Maybe I can help Steve...... BEC is a "Battery Eliminating Circuit"...it comes from ye olden days when electric flight was so marginal the ability to dispense with the Rx battery & use an electronic regulator to run the radio represented a useful weight saving. UBEC stood for "Ultimate BEC" & has become a generic term for a stand alone unit that regulates the voltage from the flightpack down to 5 volts or so for the radio..... HTH...Hope That Helps IYSWIM....If You See What I Mean IMHO...In My Humble/Honest Opinion Tim has to use these abbreviations....its the only way he has time to reach his massive total of posts.... Quote Link to comment Share on other sites More sharing options...
Steve Hargreaves - Moderator Posted February 25, 2013 Share Posted February 25, 2013 Oh yes & see here for our Glossary Quote Link to comment Share on other sites More sharing options...
Pete B Posted February 25, 2013 Share Posted February 25, 2013 Glossary here, Steve. UBEC - universal BEC - it is a separate BEC, that avoids the use of the one normally built-in to the ESC. Benefit is that it reduces the workload on the ESC, reduces heat output from ESC. Can't remember HTH but IYSWIM is 'If you see what I mean', IYSWIM Pete Quote Link to comment Share on other sites More sharing options...
Tim Mackey Posted February 25, 2013 Author Share Posted February 25, 2013 Posted by Steve Hargreaves - Moderator on 25/02/2013 11:39:38: Maybe I can help Steve...... BEC is a "Battery Eliminating Circuit"...it comes from ye olden days when electric flight was so marginal the ability to dispense with the Rx battery & use an electronic regulator to run the radio represented a useful weight saving. UBEC stood for "Ultimate BEC" & has become a generic term for a stand alone unit that regulates the voltage from the flightpack down to 5 volts or so for the radio..... HTH...Hope That Helps IYSWIM....If You See What I Mean IMHO...In My Humble/Honest Opinion Tim has to use these abbreviations....its the only way he has time to reach his massive total of posts.... LOL ( laughing out loud ) Quote Link to comment Share on other sites More sharing options...
Tony Brown 5 Posted September 6, 2013 Share Posted September 6, 2013 Hi All, Just joined the forum and it is fantastic the amount of information on here well done to you all. I am coming back into glider flying after a almost a thirty year break and i can see you guys are going to make it simpler for me to get upto speed with the new radios and such like. Many thanks for doing what you do. cheers Tony. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.