Aerodon

OK, going to pull this out now. Who wants any parts, make me an offer?

I'm about to pull a 28V KFC150 from a 28v M20K So I'll have all th parts on hand to convert a KAP150 to a KFC150 (altitude hold and flight director). I also have the KEA130A altimeter and KAS297 for vertical speed altitude preselect. A fun project for someone? Or I'l willing to sell parts individually. Aerodon

And another thought, it is probably not too hard to find a new bottom inductions system (sump and risers?) as this is a fairly common engine (Cherokee 6 and Saratoga?). The front induction system is rare (Swearingin SX300 and Found Bushhawk?). But it looks like the Bushwhack engine can be a 'parts donor, get everything overhauled and ready to go, and at the last minute overhaul and bolt the different parts from your engine?

It does not take long to look up the differences. Working backwards and forwards, i came up with th following: First 'common engine' is the IO-540-K1A5. Switch to a diaphragm fuel pump and drive and you get a IO-540-K1G5 or, add a front induction system and retard mags, you get a IO-540-L1A5 Then add a diaphram fuel pump you get a IO-540-L1C5 And I think you are correct a 48A is a wide deck, and a 48E is a wide deck with roller tappets. So overall it looks quite promising. I am not very familiar with IO540's, but I suspect this is worth pursuing. Working backwards with your core engine, you need to take off the diaphragm fuel pump, front induction system and retard mags, add a bottom induction system to get to a K1A, then add back the diaphragm fuel pump to get to a K1G5. Aerodon

Yes, I am eliminating the hump on the glareshield. I'm moving the annunciators to in front of the pilot above a G500. OK so your plane has had 2 upgrades. Those 'alt sense' wires of to the alternator control units and sense an OV. Then the ACU provides a voltage to the annunciator. (careful, different planes had different ACU's etc.) So if you ever need power for your Bose headsets...... use those CB's. Aerodon

@pinecone, here are some pictures. I see I had to drill two rivets out to get the old panel out. You can see the 4 screws with large washers that hold the panel in place top and bottom. Like the original, my panel has slots so you can just the face to align with the plastic alongside. I might make a filler piece for the side and rivet in place once I am flying again (priorities). The third hole is for the cigar lighter just in case I ever end up with a device that needs one instead of the multiple USB port I have. Aerodon

More panel pictures please. I see an interesting 'thing' you did with your circuit breakers. The Mooney alternator control units need a 'voltage sense' or maybe 'annunciator power light'. The problem is they connected this to the field circuit breaker, so just when you might need the annunciator to work, it won't if the field circuit breaker is tripped. So they came up with the most convoluted and poorly thought out modification I have seen. Basically disconnect and cap the voltage sense wire at the ACU #1 and install a new wire spliced in at the annunciator power. Then disconnect and cap the ACU #2 sense wire and piggy back onto the hi/lo vacuum switch. Then go too the CB's and change these 1A CB's to 2A. When you really think about what they were trying to do, all it would take is to move this sense wire from the field CB to the Annunciator CB. You have gone one step further and put this sense wire on its own CB, even better. But I don't see your over voltage annunciators? Probably using the engine monitor for over / under voltage, but now you just have one 'system' over voltage instead of individual alternator over voltages? I'm doing something similar on my 252, but I'm replacing the annunciator panel with Eaton annunciators. Really expensive, but probably the same cost as your custom annunciator. Thanks for posting. Aerodon

It already has a top, front and bottom 'shelf'. Yes I have thought about a 4th 'tab' on the side to close the gap by there pilots knee. Th drawing and cutting is easy, i need to upgrade my bending brake skills to bend the 4th tab.

The older Mooneys are a bit short of panel space to do a nice clean installation of additional circuit breakers. In theory the existing single row of switches on the LHS and RHS should be enough for all the OEM electrical equipment. If a new engine monitor is installed, then the old Garwin instrument cluster makes a nice location for an additional 18 circuit breakers. One row could be for all the stuff that comes on with the master switch (GI-275, JPI etc.) and the other two rows could be setup with a 35A breaker switch for avionics master. Next time I fire my CNC machine up, I'll cut out a sample and take some pictures with it fully loaded with circuit breakers. I'd be happy to send a sample to anyone who can help me refine the design and dimensions. There seem to be a few variations in mounting holes. Aerodon @flyingdude @JoeM M20C_CB2.pdf

So it sounds like this centre console was originally for an ashtray. My 252 had the vacuum gauge. It's deep enough for just about any instrument. So I made a simple bracket to slide in from the front, with U shaped slots for the mounting screws. It's quite hard to access the screws from the back with a right angle screwdriver drive. So I put two 3/4" holes in the bottom so you can use a regular screwdriver to tighten the top screws. The bottom screw can be tightened with a right angle driver. The attached pdf is an iteration of this - longer bottom shelf and slots to support an O2D2. The yellow rectangle has the dimensions of the faceplate of the O2D2, the green rectangle is the footprint of the side of the O2D2. I prefer mounting things 'centered' in spaces like this, so it will need some form of spacer to raise the O2D2. And I could put slots on the sides of the bottom tray so that velcro straps can be used to hold the O2D2 down, Thanks for the dimensions @pinecone. Give me some feedback and I'll cut it out next time I have my CNC machine fired up. Aerodon Console_O2D2.pdf

I might have a spare 28V KFC150, is there any merit in replacing a KAP150 with the GI275? Aerodon

Here is my simple replacement panel. There are 4 mounting screws on the plane that are quite hard to get to, but they just need to be loosened so that the plastic panel slides out. My aluminum panel has holes on the bottom to stick a screwdriver through. I am mounting 'prop amps', vacuum gauge and Aux power complete with 2 post lights. There are no obstacles behind this panel, could easily accommodate a 12" deep instrument. I have the CAD file, could easily make more with whatever instruments you would like to mount there. Don

I have a set of RHS pedals, master cylinders, tubing etc for you. Aerodon

Standby for a pictures. I have made a simple aluminium cover on my CNC machine that replaces that and uses the original mounting screws. Aerodon

Apart from the 14/28V issue, they are the same engine. Either may or may not have the dual alternator. But the 231 cannot get the the Encore gross weight increase. Aerodon

I was totally confused on a cessna project once, getting continuity to ground when there shouldn't. I eventually discovered the flap switch was partially down providing a path to ground even though everything else was off. Aerodon

I have made up a few of these for wing mounting GMU11's. I did a fuselage mount similar to the one above, but with a support. I don't like what I see there, it's like mounting the GMU11 on a tuning fork. Also, I don't like drilling new holes in stringers. It worked for the calibration, but from time to time I'd get an error because of loss of signal. Wing mount works good, but plan on running light and strobe grounds to well inboard of the magnetometer. Aerodon

Mooneys are short of panel space, the SL30 is a full feature NavCom only 1.3" tall. I have a spare SL30 and MD200 with a wiring harness. The SL30 is a very high serial number in excellent condition, the MD200 is also very nice with no fading of flags. Already wired together to make an easy addition or replacement to your stack. Aerodon

I removed these from my 1986 252 and are available individually or together. With tray and connectors. Aerodon

I think the EDM900 along with a GI-275 on the RHS of the G3X is functionally better and looks really good. Attached is a panel for a 252 with a G500. Aerodon Mooney_M20K_N252RM_V6_600.pdf

I have this nice 2019 EDM830 display that I can provide with a good used harness and probes for a 4 or 6 cylinder aircraft. 4 CHT/EGT, OAT, Oil T, MP, RPM & FF transducers. P1,2,3,4 harnesses. Aerodon

Max, I've installed several EDM900's and figure about 30-50 hours. Sometimes it can take a lot of time cleaning up previous installations removing OEWM transducers, getting new hoses for pressure instruments etc. And depends what else is happening, to make it easier or more difficult. If the cowls are off and the instrument panel side does not require a lot of modification it makes it quicker. There are some things I like about a GI-275, wider selection of transducers, ability to set and change your own alarm limits. Smaller footprint also helps but makes it harder to see numbers. I think a GI-275 for flight instruments is a dealer install, I think the engine or MFD is an IA install? Don

Look at the warbirds over wanaka yak 3 crash. The pilot specifically asked if the grass runway was in use at the briefing and was told that it was. He was uninsured and successfully sued the organizers and the guys responsible for placing the cherry picker on the runway. Read about the P59 and B17 crashing Texas, there was no real horizontal or vertical separation plan discussed at the briefing, and look at the end result. The thing about liability is you have to prove the other party was liable. In this case the organizers came up with a rule, and the pilot ignored it. Not to say a jury wouldn't somehow find the organizer partially liable. And then the waivers. The local ski hill has several 'issues' a year (I won't call them accidents), some of them escalate to settlements and some eventually escalate to lawsuits and damages awarded. Aerodon

Twice other spacers have been scammed by someone masquerading as me. Once for an item I was not even selling. The private messaging system is fairly secure, but at some point a seller has to provide a phone number, email address or real address for payment. I think what happens is the scammer sees someone posting interest in an article and then jumps on your user name to provide an email to take the correspondence offline. Please use caution and do some cross checking before sending money. Aerodon Donald Hague

I've been going through my stock on the shelf and can put together a nice system for a 4 cylinder system: 1) EDM700 with data and fuel flow, new display. Comes with factory return to service documentation. 2) Good used transducers - EGT, CHT, OAT, Oil T, FF - all the data you need to record for engine trouble shooting and analysis 3) Good used harnesses - P1 (Power, data, OAT, Oil T), P2 (CHT/EGT), P4 (fuel flow, GPS, FF switch) 4) Pilot Guide I'll get this ready for installation, making sure you have all the harnesses, sleeves, terminals etc. And I will make sure all the wiring harnesses are long enough and good enough to reuse. And I'll warranty all parts for 3 months. Other systems available - EDM800, 6 cylinder, EDM830 etc all the way through to EDM930. Aerodon