Jeev Posted August 5, 2009 Report Posted August 5, 2009 Picked her up on Monday and flew from San Antonio, TO to Las Vegas in 8.5 flight time. It would have been quicker but we made an extra stop in Flagstaff, AZ for food. We were burning 9.5-10GPH at 10,500MSL running 2300-2400RPM and getting 155KTS + TAS. I am real happy with those #'s. I have put 13hrs on her since mondaySpecs:1978 M20J1500SMOH all comps 76+ according to annual I just had done3400 TTAFAll speed mods except smooth bellyMX-20 with XM weather/radio and Traffic via GTX330 transponderGMS480 WAASEDM700Century III A/PThanks to Parker, LFOD, Scott, and Matt on this board for all the help finding a great Mooney, I hope I can return the favor for someoneRoswell - Fuel Stophttp://www.mypicx.com/uploadimg/1433...08052009_1.jpgFlagstaff, AZhttp://www.mypicx.com/uploadimg/3381...08052009_2.jpg201YG's New homehttp://www.mypicx.com/uploadimg/1222...08052009_4.jpgInthttp://www.mypicx.com/uploadimg/1256...08052009_6.jpghttp://www.mypicx.com/uploadimg/1922...08052009_7.jpg Quote
KSMooniac Posted August 5, 2009 Report Posted August 5, 2009 CONGRATS! You're gonna love it! Next up...go take the Advanced Pilot Seminar and learn all about engine operation, management and trouble-shooting. It is the best money you'll spend in aviation. (your fuel flow at 10.5k leads me to believe you're running ROP and you shouldn't need to do that with the 201) Quote
Jeev Posted August 5, 2009 Author Report Posted August 5, 2009 Quote: KSMooniac CONGRATS! You're gonna love it! Next up...go take the Advanced Pilot Seminar and learn all about engine operation, management and trouble-shooting. It is the best money you'll spend in aviation. (your fuel flow at 10.5k leads me to believe you're running ROP and you shouldn't need to do that with the 201) Quote
KSMooniac Posted August 5, 2009 Report Posted August 5, 2009 Jeev, there is a high likelihood you will not need GAMIjectors with your engine...it seems most IO-360 Lycomings run great LOP out-of-the-box, assuming there are no induction leaks. First step is to do the GAMI Lean Test: http://www.gami.com/gamijectors/leantest.php and report back here. The engines are made to run continuously at WOT and 2700 RPM...so do that for takeoff and climb and only reduce RPM after you level off and wait a few minutes to build speed. You should lean in the climb (and for high DA takeoffs) using this procedure: http://www.avweb.com/other/Leaning.pps I cruise and descend WOT all the time and only pull the throttle back when in the approach environment or perhaps the last 1-2k feet of a VFR descent. I typically cruise at 2500-2600 RPM to maximize power while LOP too. Just find a setting that is smooth... LOP will cost you a few knots, but it greatly increases your efficiency (eg MPG & range...dramatically) while making the engine run cooler, cleaner, and with less internal pressure on the cylinders. All of those are very good things for long engine life! Once you take the APS course, you'll fully understand why 50 ROP is a really bad place to run your engine. Quote
KSMooniac Posted August 5, 2009 Report Posted August 5, 2009 I'll add that I only run less-than-WOT (outside of the approach environment) if I'm loafing around on a sightseeing trip...something like 20" or 22", 2300-2400 RPM and 10-20 dF LOP. Otherwise, WOT all the time! Running at partial throttle is less efficient...and I'm all about efficient speed. Quote
Parker_Woodruff Posted August 5, 2009 Report Posted August 5, 2009 Quote: KSMooniac I'll add that I only run less-than-WOT (outside of the approach environment) if I'm loafing around on a sightseeing trip...something like 20" or 22", 2300-2400 RPM and 10-20 dF LOP. Otherwise, WOT all the time! Running at partial throttle is less efficient...and I'm all about efficient speed. Quote
Cruiser Posted August 5, 2009 Report Posted August 5, 2009 At 10,500' the engine is only producing about 60% power around 20-21MP. You can't hurt your engine at that altitude no matter where you set the controls. I would tend to be peak or slightly LOP maybe 10°F. If you look at a Lycoming engine chart you will see that the CHT max out at 40-80°F ROP and this is at the highest ICP as well. Both the CHT and ICP begin to drop off at peak EGT with only slight loss of power. Quote
Jeev Posted August 6, 2009 Author Report Posted August 6, 2009 Thanks for all the info on LOP Ops - I did some research and it is defintily the way to go. Quote
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