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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>The drag racing creed my Dad always quotes……”speed costs money, how fast do you want to go”?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Servo performance is much the same – higher performance often equates to higher purchase price – or, higher current consumption (mah or peak amps).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Bottom line for me is I check current use based on flight data, and check the “stress” on the RX power supply with bench testing. Certainly there are a variety of options available to check or log mah and peak current per flight if ones radio system has that capacity, or the sensors and testing bits are added using Eagletree (or similar) components.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Most importantly…..servo specs (in my experience) should never be viewed as absolutes. This can be simply because of different testing methods used by different manufacturers – suffice to say substantial variations can be found in servos with same speed, torque, and deadband ratings. I never assume servo brand A and servo brand B will consume the same amount of mah per flight because they have the same specs. Nor do I assume the peak current of brand A and brand B will be the same because they have similar specs or similar mah consumption per flight.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>That said, relative servos with tighter centers will draw more current per flight. Relatively faster servos will draw more current per flight. Higher torque servos MAY draw more current per flight - a higher torque servo operating at a peak of 50% of its actual torque may operate more efficiently than a lower torque servo operating at 90% of its actual torque.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In practice….with the plane ready to fly, plug a voltmeter into a spare port on the receiver (not into an extension, into a receiver port), and wiggle the heck out of the control surfaces, and watch the voltage drop – it will drop whether using BEC, Vreg, nicad, life, lipo, etc. Know the minimum operating voltage level of the servos you are using, and the RX you are using – that is easy to check with an adjustable voltage regulator….keep dropping the output voltage until the servo response changes – operation becomes less smooth, center changes noticeably, operation lags or delays. The RX may be 100% solid until the low voltage threshold is found, or it might become erratic within a range of a few tenths of a volt. I’m not going to make an absolute suggestion as to what is an acceptable voltage drop, or what the margin above the minimum threshold voltage should be. Personally, I would not be happy to see a voltage drop of 1 volt, but many “pattern” systems are seeing that and work fine….as most servos and RXs have minimum voltage thresholds that are significantly less than 5 volts. Assuming a wiggle test is done with “premium” servos…..do the test again with “value” servos of similar specs. I’ve seen the peak amp loads easily double, and the voltage drop increase substantially. 5amp rated BECs that operate premium servos with zero issues can be absolutely flattened and shut down by value servos that show very high current spikes when they start rotation (or reverse rotation). I don’t want to disparage value servos….some do perform quite well in terms of centering, good torque and speed for the size….but….the low purchase price comes at the expense of higher current demands that can be challenging to feed. Feeding a very thirsty servo (or five) with consistent voltage during a snap can be a big challenge for a power system.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In practice….evaluate the current draw based on flight data. For pattern flying….assume a worst case of 300 mah used for an 8 minute flight (in could be even higher if linkages or hinges are binding, a servo is specifically unhealthy, the powerplant is vibrating excessively, etc). Make 1 or 2 flights, recharge and check mah returned to the pack. And gradually increase the flight count……the mah used per flight will generally increase as the starting voltage of the RX supply decreases. I don’t like to have RX batteries depleted more than 50%, and I don’t charge them at high rates. I have multiple RX lipos that have lasted for 5 years. Low stressed RX supply systems last longer and suffer fewer failures. Long term….if mah goes up per flight, it usually means the RX supply battery is degrading, a connector is deteriorating and has increased resistance, or servos are aging (worn pots and gears) and consuming more current. Just as with servos, “value” connectors, extensions, wiring, etc can have higher resistance and greater voltage drop than “premium” items.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have heard of mah usage per flight as low as 40. My setups are typically ~100 mah per flight when I am happy with the precision and speed of the setup. I’ve been using a parallel system of 2 lipos and 2 Tech Aero Vregs for many years now. No switches…minimal plugs and connections.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal><br>Dave<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> NSRCA-discussion <nsrca-discussion-bounces@lists.nsrca.org> <b>On Behalf Of </b>Michael Cohen via NSRCA-discussion<br><b>Sent:</b> Friday, March 27, 2020 5:31 PM<br><b>To:</b> General pattern discussion <nsrca-discussion@lists.nsrca.org><br><b>Subject:</b> Re: [NSRCA-discussion] Digital and analog servos on sport plane<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Good point about the voltage. The plane this will be in is an Avios Albatross twin motor seaplane. The ESC specs show the BEC output of 5V/2A and I will be using a 4 cell LiPo pack, 3200A or 4000A pack. The servo is a JR368 servo I used to use on throttle for YS power Pattern planes (remember those). Is there a way to estimate the current draw? I could always use a separate power source if need be.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Mike C<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From: </b><a href="mailto:nsrca-discussion@lists.nsrca.org">ROBERT SOX via NSRCA-discussion</a><br><b>Sent: </b>Friday, March 27, 2020 4:59 PM<br><b>To: </b><a href="mailto:jpavlick@idseng.com">John Pavlick</a>; <a href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</a><br><b>Subject: </b>Re: [NSRCA-discussion] Digital and analog servos on sport plane<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'>You articulated this much better than I did. Thank you.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'>I found that Life batteries eliminated the need/cost for regulators and were generally considered safe to charge in the airplane. You just have to be careful to charge them as LiFe batteries NOT as LiPos.<o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><img border=0 width=694 height=2 style='width:7.2291in;height:.0208in' id="Horizontal_x0020_Line_x0020_1" src="cid:image001.png@01D604DE.799A8970"><o:p></o:p></p><div id=divRplyFwdMsg><p class=MsoNormal><b><span style='color:black'>From:</span></b><span style='color:black'> NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>> on behalf of John Pavlick via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><b>Sent:</b> Friday, March 27, 2020 2:20 PM<br><b>To:</b> 'General pattern discussion' <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><b>Subject:</b> Re: [NSRCA-discussion] Digital and analog servos on sport plane</span> <o:p></o:p></p><div><p class=MsoNormal> <o:p></o:p></p></div></div><div><div><p class=xmsonormal>Sorry to hear that you had to learn this the hard way. To be clear it’s not that NiCads themselves are bad or inferior in any way. In fact there are plenty of NiCad batteries that could easily provide power for multiple digital servos. The problem is that the NiCads that we typically use in model airplanes are of the “high-capacity” variety, NOT the “high-current” variety. Although all NiCads have the same output voltage, they don’t all have the same output current capability. We typically use 700mAh – 1000 mAh NiCads in 60-size and smaller sport airplanes. Even the 1000 mAh cells could create the conditions that Robert described. It’s because the “high-capacity” variety usually have higher internal resistance. Anyone who flies electric Pattern knows what this means: they can’t deliver their rated output voltage at high current levels. The servos want what they want, when they want it. If the current demand is high and the resistance is high as well, the voltage will sag.<o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><p class=xmsonormal>There are plenty of good batteries available that will be able to provide enough current to feed the digital servos. I was using dual 900 mAh LiPos with 2 TechAero regulators in my glow Pattern planes. This setup is light and it gives you redundancy: if one pack fails for any reason you can still fly. <o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><p class=xmsonormal>Just do your research before you risk your airplane.<o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><p class=xmsonormal>John Pavlick<o:p></o:p></p><p class=xmsonormal>Cell: 203-417-4971<o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><p class=xmsonormal><img border=0 width=90 height=39 style='width:.9375in;height:.4062in' id="x_Picture_x0020_2" src="cid:image002.png@01D604DE.799A8970" alt=idslogo2><o:p></o:p></p><p class=xmsonormal><span style='font-size:10.0pt;font-family:"Impact",sans-serif'>Integrated Development Services</span><o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><p class=xmsonormal> <o:p></o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=xmsonormal><b>From:</b> NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>> <b>On Behalf Of </b>ROBERT SOX via NSRCA-discussion<br><b>Sent:</b> Friday, March 27, 2020 2:45 PM<br><b>To:</b> <a href="mailto:chuenkan@comcast.net">chuenkan@comcast.net</a>; General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><b>Subject:</b> Re: [NSRCA-discussion] Digital and analog servos on sport plane<o:p></o:p></p></div></div><p class=xmsonormal> <o:p></o:p></p><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>I normally just watch the conversations, but fell compelled to reply to this one.</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>When the 2.4 radios first came out, I was an early adopter. I bought the DX7 "package" that came with radio, servos, receiver, <b>NiCd</b> battery, and switch. I built two airplanes that winter with that technology.</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>When I started flying that spring, I was very careful about monitoring the battery using an "old school" expanded volt meter after each flight. I lost both airplanes a week apart under suspicious circumstances. During the third flight of each airplane, the receiver apparently browned out during the down side of a loop. I had just regained control of the airplane before it pancaked into the ground at full speed. 3.5 seconds is a long time when the airplane is pointed straight down at the ground at full throttle. </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>The day after the second crash I found an article that discussed how much current a digital servo could draw. I had 4 of them in that airplane. So I set up a simulated environment on my kitchen table with the four servos, the two batteries from my crashed airplane, and a volt watch plugged into the receiver. Fresh off the charger everything was fine. Using the battery from the last crash (without charging) it still read OK on the volt meter, but went into Red zone on the volt when the sticks were stirred. VERY expensive lesson learned - a "normal size" Nickle battery could not supply the necessary current required by digital servos. Within two weeks of my crashes warnings started appearing on all the on-line websites warning about current draw with digital servos and advising against Nickel battery technology with their use.</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>I started buying LiFe batteries to use for flight packs, initially using Black&Decker VPX power tool packs with an adapted harness and heavy duty (with larger gauge wires) switches. End of problems and the additional advantage that you didn't need to charge the night before you wanted to go fly. When the airplanes came out of the truck they went right onto the charger. And the batteries held 95% charge for months. What was not to like about this chemistry?</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>In today's world, the price of a quality LiFe packs are the same as a Nickle pack or less. They're about the same size and weight. And if you're flying electric and have any kind of modern advanced charger, you are already the setup to handle this chemistry. If you're not familiar, investigate the Turnigy Nano-tech line of LiFe batteries as a starting point. The connectors are a JR/Hitec style plug so they are pretty universal. Don't forget the Heavy Duty switch - I've been using the Mpi MAXX PRODUCTS line because they offered a version that had Deans connectors, but also have a JR/Hitec version.</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>With a single digital servo you might avoid the problems I experienced. However, unless you're using servos that will not tolerate 6.0 volts (and you already said you're using a 5 cell pack pack) everything should plug right in and work. New technologies are always a bit mysterious and intimidating. This one has been a real positive for me. </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>I started using the VPS packs which lasted for 5 - 7 years. When Hobbico got into the business of LiFe packs, I jumped on those instead because they were already to go (no wiring harness build needed). They worked well with most lasting 4+ years. Sadly that production has ended, but others picked up the slack. I'm using the Nano-tech and NOS Hobbico LiFe batteries on all my planes now. I always cycle the pack 3 - 5 times before putting it in service. If it doesn't measure up, it gets relegated to desk-top duty. Sadly, the new production stuff doesn't have quite the quality materials that the old stuff did. I buy 3 to 5 at a time so I always have a replacement and cycle test my current fleet every year and a specific airplane when necessary if the replaced milliamps seems suspicious after charging.</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>Your mileage may vary. Hope this was helpful.</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'>Robert</span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><div><div><p class=xmsonormal><span style='font-size:12.0pt;color:black'> </span><o:p></o:p></p></div><p class=MsoNormal align=center style='text-align:center'><img border=0 width=694 height=2 style='width:7.2291in;height:.0208in' id="Horizontal_x0020_Line_x0020_3" src="cid:image001.png@01D604DE.799A8970"><o:p></o:p></p><div id="x_divRplyFwdMsg"><p class=xmsonormal><b><span style='color:black'>From:</span></b><span style='color:black'> NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>> on behalf of Phil Spelt via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><b>Sent:</b> Friday, March 27, 2020 7:51 AM<br><b>To:</b> John Pavlick <<a href="mailto:jpavlick@idseng.com">jpavlick@idseng.com</a>>; General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><b>Subject:</b> Re: [NSRCA-discussion] Digital and analog servos on sport plane</span> <o:p></o:p></p><div><p class=xmsonormal> <o:p></o:p></p></div></div><div><div><p class=xmsonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'>Right you are, John. I forgot that little detail. I always use 6-volt Rx packs, anyway, so as long as I monitor pack capacity during a long flying day, current draw is not a problem. </span><o:p></o:p></p></div><div><p class=xmsonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'> </span><o:p></o:p></p></div><div><p class=xxdefault-style><em><b><span style='font-size:9.0pt;font-family:"Arial Black",sans-serif;color:#333333'>Phil Spelt, AMA 1294, Scientific Leader Member</span></b></em><b><i><span style='font-size:9.0pt;font-family:"Arial Black",sans-serif;color:#333333'><br><em><span style='font-family:"Arial Black",sans-serif'>SPA L-18, Board Member, NSRCA 2032, KCRC Emeritus</span></em><br><em><span style='font-family:"Arial Black",sans-serif'>Knoxville, TN 37931 (865) 604-0541c</span></em></span></i></b><o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=xmsonormal style='margin-bottom:12.0pt'>On March 27, 2020 at 8:51 AM John Pavlick via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> wrote: <o:p></o:p></p><div><p class=xxox-38e69c4528-msonormal>Mike,<o:p></o:p></p><p class=xxox-38e69c4528-msonormal>Make sure that your airborne batteries or the BEC in your speed controller are capable of delivering sufficient current. Digital servos can draw a lot more current than analog servos!<o:p></o:p></p><p class=xxox-38e69c4528-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-msonormal>John Pavlick<o:p></o:p></p><p class=xxox-38e69c4528-msonormal>Cell: 203-417-4971<o:p></o:p></p><p class=xxox-38e69c4528-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-msonormal><img border=0 width=90 height=39 style='width:.9375in;height:.4062in' id="x_x_ox-38e69c4528-Picture_x0020_1" src="cid:image002.png@01D604DE.799A8970" alt=idslogo2><o:p></o:p></p><p class=xxox-38e69c4528-msonormal><span style='font-size:10.0pt;font-family:"Impact",sans-serif'>Integrated Development Services</span><o:p></o:p></p><p class=xxox-38e69c4528-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-msonormal> <o:p></o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=xxox-38e69c4528-msonormal><strong><span style='font-family:"Calibri",sans-serif'>From:</span></strong> NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</a>> <strong><span style='font-family:"Calibri",sans-serif'>On Behalf Of </span></strong>Phil Spelt via NSRCA-discussion<br><strong><span style='font-family:"Calibri",sans-serif'>Sent:</span></strong> Thursday, March 26, 2020 6:36 PM<br><strong><span style='font-family:"Calibri",sans-serif'>To:</span></strong> Michael Cohen <<a href="mailto:precisionaero@hotmail.com">precisionaero@hotmail.com</a>>; General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>><br><strong><span style='font-family:"Calibri",sans-serif'>Subject:</span></strong> Re: [NSRCA-discussion] Digital and analog servos on sport plane<o:p></o:p></p></div></div><p class=xxox-38e69c4528-msonormal> <o:p></o:p></p><div><p class=xxox-38e69c4528-msonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'>Hey, Mike, </span><o:p></o:p></p></div><div><p class=xxox-38e69c4528-msonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'> </span><o:p></o:p></p></div><div><p class=xxox-38e69c4528-msonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'>I don't know about Airtronics, but the Spektrum radios I fly (DX-9 and iX12) are capable of two frame rates -- 22 msc and 11 msc. In order to use the faster frame rate, you need all digital servos, as the analog can't follow the faster frame rate. If your Tx works the current analog servos, I don't think you will find any electronic issues, as the digital servos are equally capable of following the slower frame rate. The pulse widths and voltage changes to create the pulses are well-standardized, these days. Whether you would experience any "flying feeling" differences between functions with and without digital servos, I don't know. </span><o:p></o:p></p></div><div><p class=xxox-38e69c4528-msonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'> </span><o:p></o:p></p></div><div><p class=xxox-38e69c4528-msonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'>What functions are you ging to use digital servos for, and why? Just curious... </span><o:p></o:p></p></div><div><p class=xxox-38e69c4528-msonormal><span style='font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333'> </span><o:p></o:p></p></div><div><p class=xxox-38e69c4528-msonormal><strong><i><span style='font-size:9.0pt;font-family:"Arial Black",sans-serif;color:#333333'>Phil Spelt, AMA 1294, Scientific Leader Member</span></i></strong><o:p></o:p></p></div><div><p class=xxox-38e69c4528-default-style><strong><i><span style='font-size:9.0pt;font-family:"Arial Black",sans-serif;color:#333333'>SPA L-18, Board Member, NSRCA 2032, KCRC Emeritus</span></i></strong><b><i><span style='font-size:9.0pt;font-family:"Arial Black",sans-serif;color:#333333'><br><em><span style='font-family:"Arial Black",sans-serif'>Knoxville, TN 37931 (865) 604-0541c</span></em></span></i></b><o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=xxox-38e69c4528-msonormal style='margin-bottom:12.0pt'>On March 26, 2020 at 6:23 PM Michael Cohen via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>> wrote:<o:p></o:p></p><div><p class=xxox-38e69c4528-ox-150ce03281-msonormal>Hope everyone out there is COVID-19 free and using this time to build or fly, with social separation, if the weather is nice enough.<o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal>I have a sport plane where I want to put a digital servo in with the inexpensive analog ones the plane came with. Any know issues with such a setup? This will be with an Airtronics radio, if that makes a difference. <o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal>Be safe!<o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal>Mike Cohen<o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal> <o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal>Sent from <a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgo.microsoft.com%2Ffwlink%2F%3FLinkId%3D550986&data=02%7C01%7C%7Ce0fd5106a1084b21138f08d7d291b693%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637209395583464865&sdata=sv6kXmTj31iR5IzrG2Xr%2BIj5Yl4rGDfdjnQjnkTlZFk%3D&reserved=0">Mail</a> for Windows 10<o:p></o:p></p><p class=xxox-38e69c4528-ox-150ce03281-msonormal> <o:p></o:p></p></div><p class=xxox-38e69c4528-msonormal>_______________________________________________ <br>NSRCA-discussion 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