Martin S.

Thanks guys. I got the LED lights, so it indeed shouldn’t be a big deal. Checking the circuit breaker and wires is a good point, will have a look at it.

Hello Gents, I Recently studies the schematics of my 78 J ( although it seems to apply to all electric gear Mooneys) and stumbled over this. The gear warning tone generator (that alerts at idle gas and gear up) and the landing gear indication lights are on the same power line. The warning system has its own circuit breaker, the gear down light hasn’t. This means that if you pull the circuit breaker of the gear warning (for whatever reason), the gear down lights (between the seats and in the annunciator) will not work. This is very confusing, as both systems fulfill distinct functions, one warns, the other indicates - so you don’t expect it. I think knowing this peculiarity is noteworthy and might help avoiding risky misunderstanding during operation. Hope I didn’t bore you with these lines, Martin

Morning gents, trying to figure out the options I have to replace my ALY 8420 alternator on a 78 M20J (24-0520) with A3B6D. I'd like to go with a plane power. According to the plane power site it should be this one: AL12-P70. Can you guys confirm? Also wondering if its a direct replacement, because It seems the plane power is 70 AMP while the former Kelly is 60 AMP, can that cause any troubles? Greets, Martin

Evening gents, question regarding COMM antennas. Can somebody tell whether the stock "7-type" antennas are "tunable". It seems mine are not. Let´s presume I was conducting a VSWR test and was unhappy with the result, how could I change it - other than by swapping the antenna or replacing the wire? Greets, Martin

Update in this regard. I ended up fabricating a new left rack. The right one can be re-used. As was stated somewhere else, the clearance-wise critical location (at least for mymy serial num 24-0520) is between the left and right instrument rack. In case of two instruments located next to each other (at same height level), one in the left one in the right rack respectively, it is impossible to rely on screws for mounting the trays. There is simply not enough space, rivets are required. For all other cases, I managed to rely on screws.

Thanks for your answer. You mean you ordered the fram new at Mooney? Or did you weld some fresh profile to the frame?

Evening gents, anybody a good idea on how to rework radio trays (this frame that holds all the avionics). Mine are full of holes. Having a small avionics upgrade, the old holes dont match, if I insert new ones, they will most likely interfere with the old ones, which is sub-optimal. Greets, Martin

Perfect - thanks!

Evening gents, considering installation of a GNC 255 to replace antiquated COM/NAV devices. The current KX 175 relies on the depicted antenna + GS receiver (foto 2 - black box)+ coupler (foto 2 - small box lower right corner). My understanding is the GNC 255 will only need the signal from the antenna, and deduce NAV/LOC/GS info from it, without need of the GS receiver and the coupler. Is that right? Greets, Martin

Gents - thanks again for all the answers!

Ok thanks for the info. Let me be more specific. I've a dual G5 + GFC 500 (NO GPS navigator installed). My G5 ADI is fed by a GA 35 WAAS antenna. Let's say I wanted to add a GNC 355 to my setup. Can I unplug the GA 35 from the G5 ADI, connect it to the GNC 355, and have the GNC 355 forward GPS data (via RS-232 - MapMX) to the G5s, or will the G5s still need their "own" GPS antenna, e.g. a glare shield one? According to the G5 installation manual (see below) it should be possible without, can somebody (with a similar installation) confirm? Greets, Martin

Evening gents, can somebody tell me where the GNC355 is getting the GPS signal from in this setup. The G5 is the only device directly connected to a GPS antenna. Also, the RS232 connection between the GNC355 and the G5 is one-way, from the GNC to the G5. Im my understanding, the GNC can therefore only get the GPS signal through the ARINC 429. Is that correct? The manuals seems to be silent in that regard. Many thanks for your help, Martin Martin

Thanks N201MKTurbo! Same here. In my experience, the Adapter would offset the wrench from the tool, thus generating some kind of tilting Moment that makes the tool slip off its intended position which is very annoying when trying to get a precise torque measure.

Hello community, Does somebody know the socket size of the main gear rigging tool by heart or can look it up without effort? I believe that it’s 1/2 inch, but I am not sure. Need to know the size but don’t have my tool at hand right now. Many thanks and greets, Martin

Evening everybody, any suggestions what could cause an A3b6d with dual mags not to start, or only after long trying. Engine didn’t run before so no hot start.never saw this behavior before. Any ideas how to trouble shoot the ignition? Greets and many thanks, Martin