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Hi All, I am starting this thread to help those who have made the decision to upgrade their fuel senders to the CiES units and like me are starting to look for information on how to install them. First, thanks to Bob Belville and Terry Heim for agreeing to the CiES mug shots so I could obtain the Oshkosh show prices. Also, thanks to Bob S-50 for confirming my decision to make the purchase. I will be working with Terry to install these in his Mooney and mine. Terry is an IA and I agreed to start sourcing the necessary supplies to do the installs. I am currently looking for suppliers for the wiring, connectors and mounting hardware. The instruction manual does provide specific mil-spec numbers for the wiring. The mounting hardware shows a washer NAS number but I only have a partial description for the sender mounting screws. When I nail down what is needed, I will provide details on the components. My senders will be connected to an O&N Bladder System and a JPI 900. I intend to use them in "frequency" mode (advantage of working with electrical engineers to understand what this means). There are some differences in the installations based on whether your plane requires two or four senders. Terry's plane only has two senders, mine has four. In my installation, the two senders per wing will communicate with each other and the output will go to the JPI. There is also a requirement to calibrate the JPI and I will describe this process as we get to it. Right now, my priority is obtaining the hardware and burning down the fuel in my tanks so I can drain the rest of the fuel and begin the installation. For those of you who have already installed these, please share what you can on what you uncovered during the process.

Hi Mooney team, I have this new gear going in my plane. Please let me know if you guys want any specific PIREPS / Pic's related to the install process. Right now the new fuel senders are installed in the wings but the wings are still opened up (top access panels). According to Aircraft Spruce, the ship date on the EDM 900 is 3/24 so we will be largely stalled up until then. Blue Sky Aviation at KROG is doing the EDM install, but I'm going to start opening it up for them and big removing the existing gages, TACH, MP/FF, OAT, Fuel Quantity, old JPI CHT/EGT, Shadin fuel flow etc today in the Hangar. These are the before photos at the panel:

Since Scott's CIES Fuel senders STC is not yet approved by the FAA, I am hoping another Mooney out there that has submitted/approved field approval 337 is willing to share? Ideally a J or K, but any Mooney is helpful in getting through the process with a previously approved example. Thanks!

There have been some changes at Cies that make their floats more affordable. Scott occasionally frequents this forum so if I post something wrong I hope he'll correct me. Early J and older Mooneys have inboard floats that turn about 45 degrees as soon as they enter the tank in order to avoid a vertical tube in the wing. That makes those floats more expensive to manufacture. IF... we can find 10 or more owners who are willing to commit to buying floats for their Mooneys that require the 'bent' float, the price for those floats is now $455 each (down from about $650 and 100 owners needed). The outboard floats are $395 each. That makes a total set of floats about $1700. The floats will work with: Aerospace logic FL202? (resistance) - $652, FL202G (frequency) - $840, or FL252 (volts) - $651. JPI 930 EI CGR-30P, CGR-30C, MVP-50P Accuracy in smooth air should usually be within something less than a gallon. At a 1% error, that would be 0.32 gallon/wing or .64 gallon for a standard J. However, as you'll see below, he typically sees less than a 1% error. Here is the reply I got from Scott: 1. We have a '78 M20J with the 'bent' inboard floats. You mentioned that your part supplier got new equipment that would make those 'bent' floats less expensive. What would the total cost now be for 4 floats for our Mooney? (2 inboard and 2 outboard) He got the quote back to me - essentially the same - it is still $70 more in my cost for these changed parts and I wasn't marking them up. $455 for the inbds and $390 each for the outbds But the number came down to 10 Mooney owners needed 2. You also indicated that your floats will once again work with the Aerospace Logic FL202 resistance based indicator which we already have. Could you please confirm that is correct? It will now work better - I will still need to send a set off to Shane to insure 3. If we buy your floats and install them, in smooth air, what degree of accuracy/consistency can we expect? +/- 1 gallon? +/- 0.1 gallon? +/- 1%? Something else? Typically we are very small fractions of a percent different from the actual - except in the transition point between inbd and outbd sender - there it has been up to a gallon 4. If we decide to buy them, how much lead time would you need? The logical time for us to do the install would be while the plane is in annual which is early September for us this year. I'd need 5 weeks for the new Rotors and to have them teflon hard coat anodized. Thanks, Bob Patch How many of you are interested at the new price?