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STEVE ELLS replied to the topic 'TACHOMETER' in the forum. yesterday

You need a new tach. Some gearing connecting the hour counter to the rotating shaft has failed

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Jen D replied to the topic '2018 annual member Gathering at Waupaca' in the forum. yesterday

And great speakers!

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STEVE ELLS replied to the topic '2018 annual member Gathering at Waupaca' in the forum. yesterday

It's lots of fun, and lots of education, not to mention lots of cool door prizes.

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Michael Leighton replied to the topic 'Engine Power Settings' in the forum. 2 days ago

Well TAS will depend on which props you have on the airplane - 2 blues are faster than 3 blades, whether or not you have de-ice boots , boots cost you 5 knots , and if you have any speed mods on the plane .
My 2 blade - non deiced- Aeneca with all the speed mods trued 177 knots at 10,000 feet at 30.5/ 2300 rpm.
My fully de iced 3 blade Seneca only saw 167 knots at the same power and altitude.

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Stephen Murphy replied to the topic 'Engine Power Settings' in the forum. 2 days ago

Michael,
Wow, thanks for such a thorough run down of how you fly you're plane. I really appreciate it. Just wondering what kind to TAS you are getting up above 10K at those settings. I understand that each plane flies a little different. Going to go look at a nice Seneca next week. Cross my fingers!

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Jen D added a video. 2 days ago
Understanding Your Aircraft Starter's Duty Cycle

Understanding Your Aircraft Starter's Duty Cycle

Explains the importance of following duty cycle recommendations to maximize aircraft starter life.

Jen D created a new topic ' 2018 annual member Gathering at Waupaca' in the forum. 7 days ago

You can find information about our 2018 Gathering at Waupaca here:
2018 Gathering at Waupaca

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Information for the 2018 Gathering at Waupaca is online now: www.piperflyer.org/events/upcoming-events/vieweven…

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Michael Leighton replied to the topic 'Engine Power Settings' in the forum. 7 days ago

Congrats on the Seneca II- I just love that plane!

Ok so here is the way I fly the Seneca II-
remember that is a turbocharged engine and your right hand is the absolute pressure controller.
Mixtures are always full rich above 75% power.
On take off - prop full forward, mixtures full rich= set power to 38 inches. It will ram up to 40 on the takeoff roll. If the over-boost light comes on, back off until it goes out. Hold the brakes until you set take off power then release. only

Climb- above 1000 feet AGL- props back to 2450 rpm- the manifold pressure may increase with prop speed reduction.
Most of the time, this will not cause an over boost. If you have Meryln MAgic waste gates it definitively will not over-boost. There is no need to pull the power back first unless you are consistently getting the over-boost light on prop reduction. reduce manifold to 33-35 inches for the climb. You will loose 1 inch per thousand feet gained so - plan to
arrive at your cruise altitude with 30-31 inches . retard mixture if EGT's drop below 1250 in the climb. 1250-1300 normal EGT in the climb. fuel flow is irrelevant in climb.
Cruise- close the cowl flaps- reduce props to 2300 for normal cruise, 2200 for economy cruise and 2350 for max cruise.
once the props are set- reduce manifold to - 30" mp. 30"mp and 2300 rpm yields 70.5% power at 10,000 feet - lean to 1475 egt and no hotter than 1500. That will yield approx. 11 gph/ side.
plan on 3% power for each inch of manifold and 3% for each 100 RPM.
there is an power setting chart in the flight manual but the above rule of thumb works great.
If im not in a hurry or have a tail wind- 29/2200-
Normal cruise- 30/2300. High cruise- 30.5/2350.
EGTS for all - 1475/not to exceed 1500-

Decent- Probably the trickiest part- Reduce power 3" begin your decent. For every 1000 feet of decent you will gain back an inch. . Wait 60 seconds - reduce power another 3"- repeat-
plan to arrive at your pattern altitude with 20" mp.
Depending on how hot and how heavy and what the density altitude is- 20" in level flight should yield gear speed.
Use the gear as a speed brake- deploy without power reduction. flaps at the white arc- Monitor EGTS- don't push the mixtures up too aggressively- the Seneca doesnt have engine cooling issues like most turbos

Final- flaps approach= Speed - Blue line plus 10 until established on final, then blue line, then flaps full and Blue line minus 10 over the fence- thats going to be around 14 " carry a little power into the flair (10-11"). The Seneca has a known elevator blanking issue in the flair- (totally disappears with he installation of VG's) and carrying a little power give the stabalator enough authority to hold the nose up in a flair with two people in the front seats-


Under no circumstances - for any reason - do I recommend that you to operate lean of peak. It is not an approved procedure for that engine according to the manufacturer. I have had two Seneca customers cook there engines (all 4 of them ) with less than 400 hours total time on them doing just that. Yes- you will burn a gallon an hour less- and go slower- and it can be done. But if you do it wrong- even once- its going to be costly. How many gallons do you have to save to cover the cost of an overhaul? fuel is cheap- and engines are not.

Note: the engines have 8 quart sumps- small for a turbo. I always run 100AW oil- never multi vis. and I always run it full.
If it " blows a little out the breather" it shoudn't. It is likely an oil control ring issue pressurizing the crankcase. However, if you fly high- and I ran mine high all the time- the differential pressure may cause some blow by. Still, you shouldn't see more than a quart every 6-7 hours max.

I hope that answers your questions. I don't know where you are located but if you are east coast- Id be happy to come and check you out in your Seneca! Its what I do! You can call my cell anytime! \

Michael Leighton
561-704-2008

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What's everyone planning for the upcoming aviation show season?

Lydell L. Newby II Trying to get to some. 1 week ago
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Stephen Murphy created a new topic ' Engine Power Settings' in the forum. 2 weeks ago

Hello, I am new to the Forum and am in the process of purchasing a seneca 2. I was wondering if people could share how they are managing their engines during climb and cruise. i.e. LOP/ROP (not to open a can of worms), power settings, fuel flow, CHT, EGT's. Just trying to get a feel for what's normal and help me figure out how to run the engines. Thanks!!

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Kristin replied to the topic 'Considering to buy Aztec Turbo F' in the forum. 2 weeks ago

Where are you flying that you want turbocharging? That capability ramps up the costs considerably and IMX, most people don't really need it.

I have flown all of the Aztecs from C thru F. None however have been turbo. Personally I favor the E model or the very end of the F model when they changed the stabilator back to the original design. The early E models had a rectangular stabilator with external counterweights. I think Piper did this to try to keep the Aztec from pitching up like a startled horse when the flaps are first extended. That is about the only annoying issue with the handling of the aircraft and one that a pilot can overcome. IIRC, the "new" stabilator has developed cracking issues. The E model as more useful load than the F models as well.

None of the Aztecs were certified for "known icing" rather are approved by Piper for flight into light to moderate icing, though this approval means little as there is no prohibition for flying any Aztec in the ice. Fortunately, the Aztec is one of the best aircraft in the ice and handle it better than many FIKI certified aircraft.

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MEIGHAN K CHISHOLM SR created a new topic ' Cherokee 140 Upper Door Latch Releases' in the forum. 2 weeks ago

My Cherokee upper door latch releases right after take-off. Have tried adjustments, but to no avail thus far. Can anyone point me to the likely corrective action? Assistance much appreciated.
M. K. Chisholm
Easton, Maryland

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STEVE ELLS replied to the topic 'Bogert Battery box Mod/STC' in the forum. 3 weeks ago

OK, sorry I couldn't provide any leads on the drawings you requested. Good luck.

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John Barco replied to the topic 'Bogert Battery box Mod/STC' in the forum. 3 weeks ago

thank you for your assistance. I know what is needed and will look elsewhere.

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Gregory Brown created a new topic ' TACHOMETER' in the forum. 3 weeks ago

My Tach RPM works but the Hour counter does not move. Can I readjust the tach or do I need a new Tach

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