The Flying Turkey a CFI?

Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Bwahah!

Is it really the left tank? Can you absolutely prove this?

If you check the fuel system diagram, it shows the fuel line from the heater connected downstream of the left fuel selector; not directly to the left fuel tank. You can draw from the right tank during x-feed. We beat this one to death at ATP... (Carlo C. deserves the credit.)

How many fuel pumps does a PA44 have?

** betcha only counted 5, or maybe got close and called it 7... could it be 9? 10?**

Congrats, Turk. You'll make a great instructor, and you've worked hard to get there.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Like I said, the heater draws from the left tank, unless the left fuel selector is placed in X-feed, then it draws fuel from the right tank. The heater has 2 fuel pumps, in series. There are 2 EDP's (engine driven pumps) and 2 aux. electric fuel pumps. For a total of 6 fuel pumps. 2 primer solenoids, which prime cylinders 1,2, and 4...
Should I go on?

The Turk.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Primers prime cylinders 1,2,3 on the left engine the hottest on this engine is 4, so that's where the CHT probe is. Also, the older Seminoles still have 5 fuel pumps, but even on those when you order a new one they send two for the update.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

I'll side with the Turk on this one, the POH shows the primers going to 1,2,&4. Where the CHT probe is does not matter. It is screwed into a separate hole under the bottom spark plug. The reason there are only 3 primer lines is because the line for the MAP gauge screws into the same hole used by the primers.

I have heard from more than one person that there are only 3 primer lines due to the CHT gauge, but this does not really make sense. The intake side of the head is alot cooler than the exhaust side. The exhaust port is where most of the heat is dumped into an engine. The best place to have a CHT probe is probably somewhere in the middle and this is what is usually done. On engines that do not have an actual probe screwed into the head, it is common to use a special gasket under the spark plug that is actually a thermocouple. Alot of the engine monitors that show EGT and CHT for all cylinders use this system.

As for why there are only 3 primer lines on engines with fixed pitch props, I have no idea. It would be easy enough to prime all 4 cylinders, but it is probably cheaper to do only 3.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

I was told that the reason for 3 primer lines is because of the position the cylinders end up when the engine stops. The cylinder that doesn't have a primer line always stops on the exhaust stroke.

I don't totally understand this and the instructor that told me this wasn't the brightest of guys.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Actually, that could very well be the reason. If a cylinder is primed when its stopped on the exhaust stroke, its got 3 more to go before that fuel actually ignites. They might leave it off that cylinder to keep the piston from getting a deposit buildup on it. Of course, if the prop is moved that changes everything...but generally I think the cylinders all stop in the same position each shutdown.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

If you look at a seminole with the cowling off, you will notice that the CHT probe is on a different cylinder for each engine. That's when I discovered the primer's went to different cylinders depending on which side the engine was on.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Doesn't sound right to me, there is nothing in the motor that would make it stop in exactly the same position. On the seminole engine you'd stop at any of four positions, or two if your watching the prop.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

I once read that the rear right cylinder typically is hottest....I'll try to find the reference. I think it was John Deakin.

At the school I attend, somehow whenever an engine shuts down the prop is vertical. That is set up to show the fuel guy which a/c needs gas. Dunno HOW it's done...I imagine it has something to do with timing and compression.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

[ QUOTE ]
Doesn't sound right to me, there is nothing in the motor that would make it stop in exactly the same position. On the seminole engine you'd stop at any of four positions, or two if your watching the prop.

[/ QUOTE ]

Every time I shut down the warrior, the prop always stops in the vertical. I am not sure how it is done either, but it makes sense when thinking about the primer lines.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Guess what everybody...
You can stick a fork in this Turkey, cause IM DONE!
I passed my MEI ride today. What a great feeling to finally be finished. Monday morning I disenroll as a student, fill out an employment application, and turn in my resume. Then I wait for indoc. August 11.

It's been a long road, and I was glad to share my experiences with all of you. I think now that I am no longer a student at Pan Am, I will probably not be posting as much. My goal was to give everyone interested, an idea of what life is like at Pan Am as a student. Maybe I will start another thread in the CFI corner, but that will be a while. Of course feel free to email me as always and I will answer any questions.

The Turk. CFI, CFII, MEI
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

[ QUOTE ]
Every time I shut down the warrior, the prop always stops in the vertical. I am not sure how it is done either, but it makes sense when thinking about the primer lines.

[/ QUOTE ]

Yeah, just because the prop is vertical doesn't mean that the engine is in the same position. Either blade could be on top, give you two different positions. And you need to turn the prop twice around in order to complete the cycle on all four cylinders, which gives you another two possible positions for the engine to be in. So even though the engine is stopped with the prop vertical the engine could in four different positions.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Shoot, it's practically arbitrary. The 1-2-4 cylinder explanation from the POH is actually just that- arbitrary. The mystery #3 cylinder has the MAP line coming from it... unless the top of the jug that the fatter line is coming from (the one labeled "MANIFOLD PRESSURE") is stamped #1. I can furnish photos.

Who cares.

And there are 9 fuel pumps on the '79/'80s.

heheheheh
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Congrats Turk on a job well done!!!

Seems like just yestreday you started GS. Guess time really does fly when you are having fun. (pun intended)

I will be missing your many adventurous updates.


Hope you start a post on your days as a CFI...the agony and the accolades.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Totally rocking Turk! It's been real cool to watch you progress from deciding to goto a flight school and now coming out with all your ratings, congrats and good luck on getting a CFI position!
cool.gif


I'll try and fill the void with my own experences at FSA when I start there in October. So stay tuned!
smile.gif
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

HUGE congrats Turk!! I know that feels like a HUGE weight lifted off your shoulders to know that you're no longer having to pay to fly, but that you'll soon be PAID to fly!!! Take care, and don't be a stranger on here, we all love to hear your prospective on here!!

Pappy
grin.gif
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Here's a new update as to what I have been up to:
I deliver Chinese... students that is. I have a part time job at Pan Am to drive the company van. Some of the students dont have cars so they need rides. (Walmart/doctor, whatever) Most of those students are Chinese, some are from the KLM group too. I am also working the line fueling the planes, and I plan on doing these jobs till I get some students (with a break for indoc). Not to exciting, but it keeps me busy.

The Turk.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

did they fix the crack in the van's windshield yet?
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

The Turkey goes to indoc.!
It started Monday, I have just been too busy to post anything. Its not too bad, mostly H.R. stuff, how to fill out forms, what forms you need, and what they are for. How to teach the maneuvers Pan Am's way...
We have a 25 question test every day, and then some time in the future we have two flights. I hear the wait for students is 30 to 60 days...

The Turk.
 
Re: The Flying Turkey a CFI? -- just wanted to congratulate him, and HAD to respond--

Hey Turkey, where you part of the group huddled around the Chief inside the simulator farm? I was coming out of the CRJ Sim around 1pm and saw a bunch of indoc instructors.
 
You must log in or register to reply here.
Back
Top