Txbyker Posted December 20, 2016 Report Posted December 20, 2016 I need to replace my compass. I am thinking of going with SIRS. Does anyone have any pireps on SIRS? Russ Quote
carusoam Posted December 20, 2016 Report Posted December 20, 2016 That thing seems to be well liked, Russ. there are plenty of reports around here somewhere... it's competition comes from vertical card devices, or the lowest cost standard compass. Best regards, -a- 1 Quote
Guitarmaster Posted December 20, 2016 Report Posted December 20, 2016 I need to replace my compass. I am thinking of going with SIRS. Does anyone have any pireps on SIRS? Russ I replaced my compass with one of these. I love it! Even in turbulence, I can still read it just fine and the backlight is excellent. Sent from my XT1585 using Tapatalk 1 Quote
N6758N Posted December 20, 2016 Report Posted December 20, 2016 I much prefer these as compared to the vertical card compass, kind of wish I had one in my plane. Quote
Ned Gravel Posted December 21, 2016 Report Posted December 21, 2016 10 hours ago, Txbyker said: I need to replace my compass. I am thinking of going with SIRS. Does anyone have any pireps on SIRS? Russ S'what I have now too. Quote
Drumstick Posted May 16, 2017 Report Posted May 16, 2017 What model SIRS is best for a 1965 M20C? Backlight or nonbacklight? Looking for a direct replacement of the OEM whiskey compass. Quote
Raptor05121 Posted May 16, 2017 Report Posted May 16, 2017 I much prefer the vertical card compass. Is much easier to align the DG, and doing my instrument turns, is a lot better. 1 Quote
Piloto Posted May 17, 2017 Report Posted May 17, 2017 8 hours ago, Raptor05121 said: I much prefer the vertical card compass. Is much easier to align the DG, and doing my instrument turns, is a lot better. It is also rock stable in turbulence and you can tell which way to turn for any heading beyond 90 deg. Quote
INA201 Posted May 17, 2017 Report Posted May 17, 2017 I mentioned that I was interested in a vertical card to my avionics guy and he talked me out of it. He said they don't last long, something like a couple years and you would be fixing or replacing it. Are the verticals pretty reliable in comparison to the whiskeys? Quote
Piloto Posted May 17, 2017 Report Posted May 17, 2017 3 hours ago, INA201 said: I mentioned that I was interested in a vertical card to my avionics guy and he talked me out of it. He said they don't last long, something like a couple years and you would be fixing or replacing it. Are the verticals pretty reliable in comparison to the whiskeys? Vertical Card Compass are standard equipment on Robinson helicopters. Many have no DG but the VC compass. Due to the constant vibration VC are the only ones that work reliably. José Quote
gsxrpilot Posted May 18, 2017 Report Posted May 18, 2017 +1 for a VC compass... the only way to go. *get a new mechanic ;-) Quote
Andy95W Posted May 18, 2017 Report Posted May 18, 2017 14 hours ago, INA201 said: I mentioned that I was interested in a vertical card to my avionics guy and he talked me out of it. He said they don't last long, something like a couple years and you would be fixing or replacing it. Are the verticals pretty reliable in comparison to the whiskeys? The vertical card compass is more reliable, can't leak, but is more complicated to install and calibrate ("swing"). I'm thinking that your Avionics guy is more comfortable installing an old-style compass. To his credit, he probably doesn't want to screw you out of a lot of hours of his labor for his learning on your installation. I'd talk to a different shop. You could tell your guy that you plan to do that, he will probably be grateful that he won't have to install it. Most mechanics are busy enough they don't really have to do the jobs they don't want or aren't comfortable with. It doesn't take an Avionics shop to install the compass. You should probably ask your regular mechanic first. He may want the job. 1 Quote
INA201 Posted May 18, 2017 Report Posted May 18, 2017 That's what I was thinking! You guys clear up the misinformation scattered around out there. I'm ordering one tomorrow. Thanks guys I'm cleared for vertical. I'll talk to my mechanic as well. Quote
XXX Posted May 18, 2017 Report Posted May 18, 2017 I had a VC compass installed a few months ago. I like it as it is similar to the DG for partial panel instrument flying, but it is out of calibration. I believe I am going to need the compensation balls to get it right. Quote
Bob_Belville Posted May 18, 2017 Report Posted May 18, 2017 1 hour ago, Marauder said: What's a compass? Sent from my iPad using Tapatalk Pro I resemble that remark. 1 Quote
Hector Posted May 18, 2017 Report Posted May 18, 2017 +1 for vertical card. I've never done any maintenance on mine in 6 years. Sent from my iPad using Tapatalk Quote
amillet Posted May 18, 2017 Report Posted May 18, 2017 I've not pursued a VC compass as I'm leery of needing the "balls". Quote
Piloto Posted May 18, 2017 Report Posted May 18, 2017 1 hour ago, amillet said: I've not pursued a VC compass as I'm leery of needing the "balls". Your 97 M20J will not need the balls since the windshield tube is non magnetic. José Quote
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