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Everything posted by jetdriven
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I seocnd John in this, a Mooney with its laminar flow wing does not stall like a 172 or even a Bonanza. You must unload the wing to reattach airflow, and carefully load it up again. A secondary stall is violent. If you stall a Mooney anywhere near the ground its very likely to kill you. It just goes down like a stone. You must add power and lower the nose if getting near a stall situation. Point being fly this thing like a jet, hard on the numbers and have a healthy respect for the stall. As Ross says, you can land it short and at 1.1 Vso, but you must be very precise with airspeed control and G-loading. There is no "stretching the glide" if behind the power curve. The drag curve there is very steep. It ends suddenly. The highest time Mooney pilot in the world, Joel Smith, was killed in a 201. They stalled turning to final. He had 25,000 hours in Mooneys, and if you look in your airframe logbook page 1, likely his signature is there. Here is some good reading starting on page 30. Credit to Coy Jacobs and MOA for the article, found in Sept 2004 Mooney Pilot. http://www.moapilot.com/pdf/Sept04/Sept04ALL.pdf
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Anybody interested in splitting a rental car 2 or 3 ways? I'd like to get around a little but justifying a car to go to the airport and mess about a bit is hard.
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Make sure your instructor has a copy of your sylllabus. I taught plenty of students, and it didnt matter to me which curriculum they used, (they all are pretty good), but if I had a copy of it I could prepare for the next lesson also, and mark progress.
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That tailpipe looks like a J tailpipe, and the hanger looks like it was cut from an old tire and is a bit long. If you shorten that rear hanger the pipe will be more parallel with the fuselage. Here are pictures of my J exhaust. I am REALLY liking the idea of a ceramic coated tailpipe. It will look like chrome and never get rusty. Thing is how can we get it approved?
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A stopped prop will have vastly less drag that a windmilling prop, but at the speeds a Mooney glides at, it would be near impossible to stop the prop. A windmilling prop in coarse pitch will extend the glide somewhat. In fact, there is a way to cheat the commercial maneuver for the 180 degree power off landing in a Bonanza. If you get a little low or slow, pull the prop back, its the same as adding power. George got it right, when its time for a go-around, real carefully bring the prop forward, then carefully add power. Firewalling the prop lever on a Mooney can result in a nasty overspeed. On a Lycoming 360, SB369J says an overspeed of more than 2970 RPM warrants a teardown and inspection.
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I dont think the prop RPM will chage at all, the 201 prop is on the low pitch stop below around 90 KIAS and pulling the prop lever back I dont think will change that. In a Bonanza, its different, it makes a huge difference in glide ratio. You can try it slowly, and see how it goes. It won't hurt an A36 at 1400 RPM, it won't hurt yours.
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In the 201, a go around with full flaps, VFR, was a non-event. I do not trim below 80 knots, reason being if a go around is warranted and the trim is full nose up from "trimming in" the flare, yeah its going to be a handful. If you trim to 80, and use your arm to land the airplane, a go around doesnt require much forward force, if any. This is for a 201, a Bravo may be different. Half flaps for a crosswind landing on a long runway as Ross says. Every jet and turboprop airplane I have ever flown is full configured at the FAF or before. This means full flaps as well. landing is a landing, and a missed is max power, pitch up, flaps to (20, half, takeoff depending on airplane) All that said, I use 90 knots and half flaps for an approach in a 201 and after breaking out, go full flaps and land. Less pitch forces and conficuration changes while IMC the better. An ILS is more like cruise flight than a VFR landing pattern. A missed is as well.
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Mike: In addition to the long post I made above, American stuffed a 757 into the side of a mountain in Columbia back in 1995 because they did a GPWS escape maneuver and forgot to stow the spoilers. The hit near the top of a mountain. Not that you are going to Columbia soon, but forgetting to stow the spoilers on a real life go around or missed approach is going to make a huge dent in your climb rate. Quote: ScubaMan I too am trying to get the landings figured out in my Ovation 3. I have just about 30 hours in the Mooney and probably 80 landings by now. I have learned that proper approach speed and flare height seem to be the ticket to a smooth landing. I have only used full flaps and think I'm ready to try some new techniques. Has anyone tried landing with the Speed Brakes? I just read an article in a year old Plane and Pilot where the author of the article claims landing speed is less critcal when using speed brakes. If we use them to land do we still use full flaps? What happens on the go around? Any suggestions would be appreciated.... Thanks Mike Johnson
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I have only used speed brakes on a Mooney once, in a J, and I didnt really notice much drag below 90 KTS. Thart said, they do blank out a percentage of the wing area and are going to raise the stall speed a couple knots. So if you come in a couple knots faster to compensate for that, well , you negated the benefit on landing with them deployed. If you are that comfortable losing a couple knots of stall margin, then come in without spoilers a couple knots slower. I do agree with Jose, raise the flaps in the flare. Just get it right and know what you are doing. This is not SOP, but however, a technique to deal with extremely short landings. We used to do this in the Beech 1900D and we could stop a 12,000 lb airplane in 800 feet. As in, turn off the runway before the aiming point markings. John, a 747 does not land with the spoilers out. In fact, you are not alowed to have the spoilers out with any flap extension at all. A short field landing in that airplane is flaps 30, Vref +5/-0, landing in the touchdown zone with little float, and max autobrakes and reverse until stop. The airplane raises half of the slats on touchdown to add weight to the wheels. Fedex does not have Airbus A320s and the general rule on stabilized approaches is based on altitude, which is 500' VFR and 1000' IFR. These are 1.6 and 3.3 miles from the aiming point markings respectively. Some airlines are 1000' VFR and FAF inbound IFR. You can also be stabilized on a circling approach from which you depart the circle at 400 AGL and roll out on final at 1/2 mile. Your friend is right in the fact that unstabilized approaches preceed most landing accidents. It is a great predictor. Quote: johnggreen Docket, Please don't take this personally, but I think you have mis-spoken. Setting an aircraft up for a stabilized approach and using the equipment provided to create that stability is not a crutch. I don't think you meant it the way it came out, but let me elaborate. It would be an over simplification to ask how you would like to land a 747 clean, without using the "crutches" of spoilers and flaps, but it would be an accurate over simplification. A Mooney is clean, very clean, with I understand less than four square feet of frontal surface for drag. There are many considerations depending on the circumstances affecting a particular landing as to how you should set the airplane up, but in short, the pilot should do whatever he can to have a stabilized approach. That becomes even more critical during an instrument approach when you consider the workload you would face in a go-around or missed approach. That being said, on my Bravo, I can not tell whether the speed brakes are deployed at all below about 90 knots. If they did provide additional drag at approach speeds, I would probably use them. I remember a friend of mine was beefing up for his semi-annual check ride in the Airbus 320 one time and I asked what caused most busted check rides. His reply; failure to establish a stabilized approach. I believe he said that Fed Ex wanted the approach "stabilized" at least 3 miles out, but it may have been 5. Anyway, I would encourage any pilot to use all the tools at his disposal to create a low work load and a stabilized aircraft in all flight regimines but especially on approach. As an instructor, I insist on it.
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its because they are not MOSFET ttansistors. I dont know where I got that. They are just regular NPN. Quote: N601RX Interesting it worked. A 2N2016 bipolar transistor and a MOSFET are biased entirely differently ... the MOSFET working more like the old electron tubes by clamping the electron flow by reverse biasing the gate and the bipolar transistor by forward biasing the base/emitter junction and reverse biasing the base/collector junction. Maybe that is why it's getting hot...
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That windsdhield mod looks really nice. I wonder if anyone has coated their exhaust pipe on a certified airplane? The Powerflow exhaust tailpipe is coated, and RV guys do it often. Can we?
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i take a different view, there are a few single point failure modes of the dual magento which suddenly leave you without an engine. However, if safety is what you are after, spend the 5-6K it costs to convert your Mooney to dual mags and get yourself shoulder harnesses, an EFIS, second attitude indicator, onboard weather, moving maps, training, IFR rating, aerobatic training, etc.
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Figured I would start this off. Either me, my wife, our 201, or any combination of us will be there. We are also staying at the Y-O Ranch.
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Earlier in this thread are the part numbers for the transistors. You can get them and the F01 fuses from mouser electronics.
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John, your analysis is right on. The only thing us Mooney pilots can do is raise the flaps as soon as possible. You can even do it in the flare, Im not advocating it as SOP, but for a <2000' runway, sure is safer than running off the end.
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Maybe 10 or 12 G's pulled the tailwheel out.
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He might have been incapacitated from the failure of the tab. A couple of photos on the web don't show a helmet in the canopy. There must have been some tremendous G-forces involved.
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A 231 can run LOP. A Bravo, for some reason, it simply won't do it. Lycoming does not approve LOP operations for any of its engines, although some Continentals such as the Cirrus SR22, ONLY allow LOP for high speed cruise. Lycoming needs to admit that the sun comes up in the east, and LOP done right will not simply "burn up" your enigne.
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Light oil mist on front of cowl (M20J)
jetdriven replied to bnicolette's topic in Modern Mooney Discussion
If its fown frequently use what you feel like. If it sits 10 or more days at a time, use W100, W80, or XC with camguard. The K&N filter is approved as a Challenger filter but i think it lets in more dirt than Donaldson or a Brackett. Brackett is cheap but restricts airflow. We went with the Donaldson. -
This aircraft has been air racing since 1949. What a history. http://www.ww2color.com/nennius/webapps/slides/slides.php?action=update&primary_key=00033
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Com to think of it, Testwest checked the ohms of the Champion plugs in his Aerostar and most were really high resistance. Somwe sort of breakdown of the resistor in Champion massive plugs. http://www.mooneyspace.com/index.cfm?mainaction=posts&forumid=3&threadid=2470
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Wow, 1690 on grass is really short. I'm impressed you did this with a 201. What was the temperature outside and your takeoff weght?
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that looks terrible. This angle almost looks like a botched 4-point roll. He was travelling at pretty high speed, it didnt look like a stall.
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Try switching the plugs around. Or trying some known good spares. Try richening or leaning the mixture and its effect on the roughness.