Jump to content

Bolter

Supporter
  • Posts

    885
  • Joined

  • Last visited

Everything posted by Bolter

  1. When faced with the same decision years ago, I went with the G5 (had 430w and KAP150) and had no regrets on costs or function. Assuming you have to pay someone to do the work, it does not take long before labor costs make a do-it-once solution the cost competitive option. -dan
  2. Are the 2 alternators equal size in the TIO-360 engines in the M20K's?
  3. When I bought my Ovation, there was an Alpha Systems Eagle AOA installed with display on glare shield. It is great. Not life changing, perhaps, but now that I am used to it, I would not give it up. If it is a just a question of utility, go for it.
  4. If being close was an important criteria, what about Poplar Grove? Good reputation.
  5. I know they have a loyal following, but I was very unimpressed with the Rosen visors in my J. Particularly for the J, perhaps, the visor goes into a pivot that is only a screw into the plane's frame. If I swung the visor forward, the screw tightened. If I swung the visor aft, the screw loosened. I was constantly getting bonked by a swinging visor on takeoff. I always had to have a screwdriver up front to tighten the screw after each use. I contacted Rosen to be sure there was not a missing part. I even sent the visors in to be confirmed they were the right parts. (I do applaud their custome service). It really needs a bearing or a Teflon bushing with some friction adjustment, so the screw is not torqued when you swing the visor. Note that the Mooney factory visor used the same mounting point, but the swing was in a bushing part and never torqued the mounting screw. Other issue is if you have the compass on the post instead of glare shield. The visor will hit the compass. So you must move it in all axes with every swing from stored position to sun blocking position. With my Ovation, I decided to just carry sunglasses rather than get another Rosen set. I think Muncy's are the right balance, based on the pics. Not too big, so they will not hit the compass.
  6. I have flown into the area a few times from my old base in SoCal, and always planned both routes, and confirmed my choice based on the actual weather that day. Always give yourself options, including cancelling. If Truckee is "Reno Area", I flew there around Thanksgiving, and it was a good GA airport. More than one rental car company across the street, which is very convenient. An exceptional website for pilots, emphasizing safety. https://pilots.truckeetahoeairport.com/flight-planning.html -dan
  7. Conveniently this experience was a long body, so very applicable. -dan
  8. Send me a PM with your email. It is a large file.
  9. Has anyone had an actual flat with the FC 3's? I would think the stiffer sidewall has benefits in case of a flat, versus the lower rated tires. -dan
  10. saw this on FATPNW. Unusual to collapse some gear on a Mooney with all gear linked. Does this require failure of a connecting rod? This appears to be at the end of the northbound runway 34, where you taxi to the parking area. If so, unlikely this is a typical pilot-forgot situation.
  11. Where did you get the disks?
  12. Fellow PNW flyer here. My personal experience was traced to fuel pump and divider wear from age, and leaking internally. Replacing these parts AND proper system tuning, fixed it all. You already confirmed good plugs and igntion wires, I assume.
  13. No luck searching, can you specify the tape? Was the advantage of this tape that it adheres well? Or does not hurt paint? Both?
  14. If the Garmin AOA is just a glorified air speed indicator instead of a real moving vane type, then it seems like a blocked inlet port. It is essentially tracking altitude, not airspeed. When you leveled off, it slowly restored, like 95% blockage will eventually let some air equalize.
  15. My 1983 J had fuel pressure in the top row of gauges, near the fuel level and oil pressure gauges. What gauges do you have? The 830 is not a primary gauge, so the original gauges must be retained. edit: found photo example
  16. I listened the Ask the A&P's podcast the other day, and they talked about the induction leak in-flight test. It would target if a single cylinder had an induction leak, not an overall leak. Essemtially (from memory), operate at a steady condition at high alitutude. When satsified with the numbers, make a large power reduction with throttle. I think he said 8". Watch for a cylinder that does not track like the rest, and that one has an induction leak and is keeping up power by sneaking in its own air. As I finished writing, I found that this link, end of the article, has the test: https://www.savvyaviation.com/wp-content/uploads/articles_eaa/EAA_2012-01_flight-test-profiles.pdf I liked that article on Turbo Troublshooting someone shared. I have a normally aspirated engine, so it was just academic to read it. If I understood the wastegate function, it is spring loaded to maximum bypass when there is no oil pressure. For as long as you have sufficient oil pressure, the wastegate will drive to the setpoint, regardless of the oil viscosity. In other words, it will always try to achieve its goal. If you don't get full MP because of the wastegate, then I think you have to have one of these conditions: pressurizing oil is leaking past the piston applies pressure to, assuming you have oil pressure in the green - look for oil leaks? you have reached min bypass already point already, and the turbo is already giving all she got. - check settings on wastegate since you are too low to reach min bypass? wastegate sensing pressure point is higher than MP gauge measurement point, perhaps due to temperature profile under the cowling - put a temp measurement gauge at the wastegate sensing point? Just a brainstorming exercise, certainly no expert on this.
  17. 310HP STC: I see 13 GPH at 170 KTAS (typical) when LOP, and average closer to 15 GPH on a long trip, when you factor the high fuel burn of climbing. For my margins this can go about 800 nm. With the full family and not demanding ultra-light packing and keeping the TKS full, I can only take on 75 gals, which means around 650 nm, which is enough longer than my typical 600 nm mission to see in-laws that it prompted me to buy this plane. My J was overall more fuel efficent, but slower. I did +800 nm in that with the standard 64 gal tanks. M20R LOP: 13 GPH at 170 KTAS = 13 nmpg M20J LOP: 8.5 GPH at 150 KTAS = 17 nmpg You can get better economy in the M20R if you go much slower, but that is beyond my tolerance for speed-range tradeoffs. -dan
  18. The heat exchanger is typically called a "recuperator" and recuperates waste heat from the exhaust back into the thermodynamic cycle of the gas turbine. A land based gas turbine of similar size is from Capstone Turbine, and produced by the thousands since 1998, available today. That recuperator is very effective, doubling the total gas turbine cycle efficiency (from about 15% to about 30%), but very heavy, as it is land based. It proves the cycle out, but not aerospace ready. The cost of the recuperator is a major portion of the total system cost, just as it is a major part of the weight, not just an accessory. For aircraft, the recuperator effectiveness will depend greatly on size and therefore weight. Very difficult to make a solution that meets weight and cost targets. It is also a highly aggressive environment of massive thermal cycles from cold soak to +1000F exhaust temp on the hot side, plus a thermal differential with maybe 400F on the cold side. The exhaust gas is also highly corrosive at these temperatures, requiring fancier alloys (including Inconel 625 as a popular choice) Turb-Aero (https://turb.aero/) has a similar solution but with 2 spools like PT6. Also a long way from being availble for sale. -dan
  19. I found internal fuel component leaks from dried out or ageing components, I think the engine driven fuel pump and flow divider. The dying on roll out was rare, then became more common as the components got worse in ananalog kid of way. Rebuilt all fuel system components and tuned per the manual, and the problem was positively gone. Other than the stalling on roll out, there was no external indicator of the significant problem inside the fuel system.
  20. If you literally cut the wings off, won't they be useless because of the continuous spar? It would be a totally different disassembly if you want to fit the plane on a truck or in a container, AND have the wing repairable. The popular options appear to be removing the total wing, or removing the tail, and carrying the fuselage sideways on the truck. Either way, the wing spar is left intact.
  21. At my old airport, Whiteman KWHP in LA, someone was working on a C or E, and when they swung the gear, the front wheel caught the ground, and pulled it off the jacks. Same wing damage. Most likely the jacks leaked a little overnight, so the plane was just enough lower. I am told that the plane was repaired. It was reskinned, as nothing substantial awas broken internally.
  22. I knew less before I watched that video. Is the timing a fixed thing based on where that post is located? The catch is tripped, the mag spins enough to make a spark, and does so based on the mechanical location of the catch pin and the rotating tooth. When running, the points take over the timing.
  23. When using Inconel, do you get infinite exhaust life in this application? I expect you could plan to use the exhaust on your next engine, as-is. In my day job, I specify Inconel 718 for almost everything. High temp capable, exceptional fatigue, my favorite alloy. I expect you use Inconel 625? Similar enough and better welding. If you use thinner stock due to superior properties, you may end up overall lighter.
  24. That is for Houston Tank Specialists?
  25. @Mooney810 Was your 15 hours of required transition training for insurance with a Mooney experienced pilot or someone at least used to training beyond typical trainers (like 172)? What you are describing does not sound like standard practice for our planes. As @Hank says, leaning during runup is the anomaly event for high altitude airports. And you would not use that lean setting for takeoff, except for a high altitude airport. I would expect the CFI with appropriate experience to instruct you differently. Not trying to be rude, but you may still need proper instruction to manage the plane despite meeting the insurance requirement. Where are you located? Add that to your profile. Maybe someone in the area can meet with you and discuss it with you in person? I am in the Seattle area, if that helps. There are also Mooney instructors on here who may be in your area. Look at the MAPA pilot proficiency courses as well: https://www.mooneysafety.com/ (see the bottom of page for dates and locations, next is Henderson, NV) I had a J with nearly the same engine as your F, namely a 200HP Lycoming 360 with fuel injection. Standard practice is as you will find on many posts on MS: Full power takeoff, cowl flaps open for cooling RESIST the 25x25 old wives tale. Climb with full power, full prop, full rich. Then Leaning as required as you get up in altitude, staying on the rich side. In cooler weather, put cowl flaps into trail position. Leveling off to cruise, leave WOT, turn back RPM to 2500 or 2600 as you like (I often used 2600, especially at altitudes 8k and over), lean to your preferred setpoint. I used LOP happily and had an engine monitor to feel confident all cylinders were leaned and at safe temps. If using single point EGT and CHT, then consider staying ROP unless you are over 10k and confident your are low enough on power to lean without concerns. Cowl flaps as required for your weather conditions. If you are flying relatively low, such as 3k, you may need to throttle back and turn down RPM to keep heat and fuel consupmtion under control. And always check your gear is down and say it out loud several times on your approach to landing. -dan
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.