kallend

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I just had a new GNS430W installed by Premiere Aviation in Elkhart, IN. Nice work. $12500 altogether, including new indicator and WAAS antenna.

Quote: flyby201 Powerflow for IO-360 = $4500, Dawley said my overhaul would be $300 to $550 depending on what they had to do to it. My buddy, with whom I share a hangar, is a Powerflow dealer. A Powerflow exhaust is WAY down my list of desired upgrades. IMHO, the tradeoff of $$$ for HP isn't worth it, but he has a C-172 with powerflow and I can definitely see the difference on it.

Quote: scottfromiowa I am putting a couple of kids through college and am sole owner of my '66 M20E. Since buying my plane I have attempted to update my panel on a budget. I have no dreams of a flat panel or flying to minimums. I have purchased the following avionics "used" 1. Comm panel 2. Intercom 3. Garmin GNC300XL 4. Garmin 496 5. Gem 602 (new probes) I have experienced no problems with any of the equipment which was tested prior to installation. What are others experiences with purchasing "pre-owned" equipment? I personally am VERY happy that many are continuing to update to the latest and greatest, as it give a bottom feeder like me the opportunity to obtain functioning improved (over my existing) avionics at a nice price...

Quote: Sabremech Is there an STC or Mod to change the early Mooney square air intake for the carb to a flush mount like to IO models? Thanks,

Quote: mooneyflyer

Quote: DaV8or Ok, everyone seems to think that the 65-66 M20s are the sweet spot for pre J Mooneys, but how much worse is a '69? There is one for sale right now that I'm pretty excited about and I'm wondering what down sides it has. I haven't gotten my Mooney book yet, but it's on the way. I'll definately read up on it when I get it. I was just wondering if there are any owners here of '69s or there abouts that can comment from experience. Are they a little worse or is it an OWT?

Quote: kallend One more datapoint. The AERA came with a coupon for a year of free database updates. I went to update today, and received the message from the Garmin web site "Coupon already redeemed"! WTF! I bought the unit new at the end of Feb and the coupon, good for 60 days from date of purchase, hasn't been out of the box until today.

Quote: edgargravel It should give you max power (2700 rpm) at any attitude or configuration. Not just in climb. Remember that you are level when you first call for it, on the runway. And not go overspeed in cruise. IMO

Quote: JimR I always thought that 66 and 67 were kind of a sweet spot. Unlike the 65 and earlier models that I have seen, they were zinc chromated internally, but they had not been "Butlerized", which I always thought started with the 68 model. One big inprovement that happened in 65, if I am not mistaken, was the camlocks on the cowl. I also like the asthethics of the "square" windows. PC was first introduced in 65 as well. None of this would stop me from buying a cherry 64 or older Mooney, but they are factors to consider. BTW, when was the hat rack added? Some round windows don't have one, but I don't know when it was added.

One more datapoint. The AERA came with a coupon for a year of free database updates. I went to update today, and received the message from the Garmin web site "Coupon already redeemed"! WTF! I bought the unit new at the end of Feb and the coupon, good for 60 days from date of purchase, hasn't been out of the box until today.

Quote: Piloto Did you try the unit in your car? The hum could be caused by the internal switching regulator in the unit when voltage exceeds that of the internal battery. If it does not sound in your car but in your plane try this: Connect a 1amp/50piv diode in series between the unit and the +bus. Make sure the diode band side is on the unit side. On the diode band side (cathode) connect a the + lead of a 300uF/50v capacitor. Connect the -lead of the capacitor to ground. You can get the parts at Radio Shack. This will filter any ripple on the bus line. José

OK, more data: some will remember when the Garmin 396/496 came out there was a lot of discussion on the Mooney email list about alternator whine when listening to the XM radio if the GPS was running off the plane's electrical system. Accepted wisdom was ground loops and Crutchfield isolating filters were recommended. I didn't believe this cause as I had the whine but my GPS external power and my intercom share a common ground so there should be no loop, but I put a filter in anyway to see what it would do; while it attenuated the whine, it also attenuated the audio and messed up the audio quality. I figured the inductance of the isolation transformer just filtered the whine anyway. Forward 5 years; I replaced my 396 with an Aera560. I figured I'd try it without the filter. Aera output goes to the intercom stereo input. No extraneous noise at all when running on the Aera internal battery. Some high pitched alternator whine (not much, not annoying) but also a loud hum at maybe 500Hz or so (estimated by ear) when the Aera is running on plane power. Hum frequency is independent of engine speed. Hum still there when engine is stopped. Hum still there when the audio ground is disconnected. Hum still there when all radios, strobe, beacon, lights, pitot heat, and engine are OFF. Hum still there when alternator field breaker is pulled. Hum still there when XM antenna disconnected. Tried the Crutchfield filter, which attenuated everything and still messed up the audio quality. BUT the hum goes away when + power lead from plane disconnected (leaving ground connected). So it seems the hum is coming in on the + power supply lead, but what can be causing it, and why doesn't it affect the other radios, and any suggestion on how to remove it?

Quote: KSMooniac The Pre-J planes I flew (a couple F's and and E) it was good for a solid 1" of MP when used, though.