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 Post subject: Re: Guess its time
PostPosted: 07 Apr 2016, 21:10 
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Joined: 07/21/08
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Location: Decatur, TX (XA99)
Aircraft: 1979 Bonanza A36
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Made a two hour test flight today. Got a few squawks, but nothing major. Countdown T-minus 15 days until we leave for Cabo?

Very Nice Doug! You did really well. Is that Juan standing next to you?

Yes, thats Juan. He was telling me not to kill him on the test flight....
Actually I dont know who the guy is with Juan. I was behind the camera.
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 Post subject: Re: Guess its time
PostPosted: 05 Aug 2016, 18:59 
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Location: Decatur, TX (XA99)
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Finally brought it home to XA99! It was a total non-event. Both the landings and takeoff's ( 3 of each), used less than 1,500' of runway.


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 Post subject: Re: Guess its time
PostPosted: 05 Aug 2016, 20:05 
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Joined: 04/05/10
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Company: C-Star Inc
Location: 16FL Florida & T67 Texas
Aircraft: J35, N14DF
Congratulations Doug,
I always thought the 340 was a pretty cool looking plane.
Cc


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 Post subject: Re: Guess its time
PostPosted: 06 Aug 2016, 05:32 
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Very cool Doug!
And here we think we are hot stuff, driving to the airport to our hangars.
This cool Texan gets out of the house, hops in his four wheeler, and presto there is his hangar. That is if he can find his plane in there, stuffed with every other toy known to man. Sigh....l I'm not worthy...
Well played Doug!
Note to self: don't get in to a four wheeler with an off road racer. He will try to kill you!

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 Post subject: Re: Guess its time
PostPosted: 06 Aug 2016, 07:42 
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Joined: 12/13/07
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Location: DFW, TX (KGKY)
Aircraft: B55, PT-17, J3, SNJ
Doug, that's great! Congrats.


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 Post subject: Re: Guess its time
PostPosted: 06 Aug 2016, 07:48 
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Joined: 07/05/09
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Company: Waypoint Lighting
Location: Austin, TX (KGTU)
Aircraft: '65 Deb C33
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Finally brought it home to XA99! It was a total non-event. Both the landings and takeoff's ( 3 of each), used less than 1,500' of runway.

I don't know how I missed this thread. That is Beautiful!

Congratulations Doug!

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 Post subject: Re: Guess its time
PostPosted: 06 Aug 2016, 09:49 
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Joined: 11/08/12
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Location: Everson, WA
What a beautiful and capable machine! Does the R/STOL system introduce any cruise speed penalty? From the info I could find online, it seems the answer is "no", but I'm skeptical when I hear about a free lunch. Are you seeing book cruise speeds / fuel flows?

Short field performance concerns and my own ignorance regarding twins are keeping me in my Bo for now. Still, I want this kind of capability. The R/STOL 340A clearly deserves some investigation. Thanks for sharing!


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 Post subject: Re: Guess its time
PostPosted: 06 Aug 2016, 10:54 
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Location: Decatur, TX (XA99)
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What a beautiful and capable machine! Does the R/STOL system introduce any cruise speed penalty? From the info I could find online, it seems the answer is "no", but I'm skeptical when I hear about a free lunch. Are you seeing book cruise speeds / fuel flows?

Short field performance concerns and my own ignorance regarding twins are keeping me in my Bo for now. Still, I want this kind of capability. The R/STOL 340A clearly deserves some investigation. Thanks for sharing!

Josh, i have no experience in a Ram 340 without the R/STOL, but I dont see where there would be any speed penalty. The kit consists of fowler flaps which,when retracted, do not add any appreciable drag.
It is a remarkable machine, but not for the frugal! I am still trying to get used to the operating cost, but my pocketbook is slowly becoming numb....

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 Post subject: Re: Guess its time
PostPosted: 06 Aug 2016, 11:01 
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It makes you wonder why Cessna didn't put fowler flaps on the stock 340 in the first place, right?

Enjoy your new machine! :rock:


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 Post subject: Re: Guess its time
PostPosted: 25 Sep 2016, 19:05 
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Location: Decatur, TX (XA99)
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I have been experimenting with LOP operations in the 340. Normal cruise is 30/2300 and 18.5gph. This will yield 190-195 ktas in the summer, faster when cool.
LOP is: 33/2300 and 14gph yielding 188-193ktas, so I am saving 9 gallons per hour and only losing 3-4knots! The best part is the CHT's are down, but I still have issues with #2 and #4 on both sides. ROP they are running 390 and LOP they are maybe 5 deg cooler.
All the others are 320-350deg. I think a baffle tweak will help. I cannot for the life of me reconcile the TIT temps in my head, as they are 50-100 deg higher than the average of the EGTs :scratch: :scratch:. George has tried to explain it, but I just don't get it. I'll post a couple of pics.

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 Post subject: Re: Guess its time
PostPosted: 25 Sep 2016, 19:21 
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Location: Decatur, TX (XA99)
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19,000 LOP
Note the " last to peak" annunciation is actually showing the first to peak. I have notified EI about this and they are addressing it. So far they have been very accommodating with any issues I have had.


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 Post subject: Re: Guess its time
PostPosted: 25 Sep 2016, 19:28 
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Location: Decatur, TX (XA99)
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another view of the CHT's and EGT's showing the disparity between the EGT's and the TIT.


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 Post subject: Re: Guess its time
PostPosted: 25 Sep 2016, 19:32 
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Location: Fort Worth, Texas
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Ok, I'm no turbo guy but how can the air come out the exhaust (egt) at 1520 and go in the turbo (tit) at 1600?

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 Post subject: Re: Guess its time
PostPosted: 25 Sep 2016, 19:38 
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My understanding: EGT is an average of the exhaust gas temperature while the exhaust valve is open and and while it's closed. It is closed most of the time, so this average temperature is much lower than the actual exhaust gasses. TIT measures the combination of exhaust gasses from all six cylinders.


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 Post subject: Re: Guess its time
PostPosted: 25 Sep 2016, 19:50 
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Location: Decatur, TX (XA99)
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My understanding: EGT is an average of the exhaust gas temperature while the exhaust valve is open and and while it's closed. It is closed most of the time, so this average temperature is much lower than the actual exhaust gasses. TIT measures the combination of exhaust gasses from all six cylinders.

I don't buy that Josh, because the monitor has no way of knowing when the valve is open or closed. It is just a temp probe, the same as the TIT probe which is 12" down stream of the back cylinder. If anything, it should be a bit lower, since the gas has a moment to cool.

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