Eagle/Screamin Eagle'

[Cris]

Yes, I purchased the A/C with the Ameri-King Model AK-451-2. It is located in the tail cone. Not sure where the antenna is mounted but I think it is also on the dorsal fin-thin black wire antenna 15" or so. Are you referring to power settings for a 110 Kt airspeed? If so at T/O I am using 2700 RPM with about 27 inches of manifold pressure & 27.8 GPH at sea level 30.00. That will push my CHT to close to 420 F on a hot 90 degree day so I throttle back to 25/25 after the first 1500' to keep it at or below 400 F in the climb. I adjust A/S based on CHT and keep the fuel flow at max if required in the climb to keep the CHT's lower. I really have not owned it long enough to get these numbers correct. I just installed a GEM 610 so I will get some better info as time goes on. Was the autopilot original equip or was it added? I imagine the Aspen quite nice. I'm still working with & comfortable with the old 6 pack. What is your max fuel capacity?

[skyking1]

I was referring to 11000 ft as that seems the best so far without oxy. The stec 55 was added as well as a 530 waas before I had the airplane. My cht seem to run about 380 or less at cruise and I also do 25 squared on climb but also climb at 140 which seems to keep things cool. Max fuel is 95 filled to the top. Do you like the gem 610? I have a jpi 700. I sure love the speed and comfort as I'am 6'4" and have plenty of room.

[Cris]

Hmmm Like you, I used to be 6'4" until I had employees. Now I am maybe 5'8" after employes but that gives me a ton of room in the Eagle! LOL. But really at 11K & 2500-2550 LOP I will be at 330-340 CHT. I need to do a better job of keeping the A/S higher on T/O to keep the CHT's lower. I just put the GEM 610 into the plane at last weeks annual so I have not even had a test flight. I'll let you know in a month or so. Although 11K is a good altitude you are giving up speed since you can not get 75% power above about 9K. I do go there but only if the winds are being helpful or if I want to get above some cumulous for a smoother ride. Mostly I fly in the 8-9K arena since most of my flying is in the east. I had given brief consideration to the Stec 55X upgrade special which I do not need (nice to have) and in the end decided that I really wanted an upgraded paint job which I just got. 

[skyking1]

send a picture of your "new" airplane! a new paint job will be a someday for me!

[gofast]

You don't need a new paint job!  Save your ducats for sorties to EYW with your nephew!

[Cris]

Quote: skyking1

send a picture of your "new" airplane! a new paint job will be a someday for me!

[Cris]

Quote: skyking1

Max fuel is 95 filled to the top. 

Is that usable fuel or total fuel? The STC for the POH indicates 89 gals same as the Ovation so I assume that means 95 gals less the 6 gals unusable. However I have been trying to get this answered elsewhere & find one referance to 95 gals plus the 6 gals unusable for a total of 101 gals. Jose' from Monroy has generously shared that all the Mooney tanks are the same & depending on the fuel restrictor used, angle that the A/C is fueled & the OAT you can get higher quantities. His experience is that there is only 1/2 gal of unusable which  I assume is straight & level. You can see the Mooney Co. info http://www.mooney.com/images/pdfs/afmPDFs/50gal_useable_fuel-rtn.pdf  which shows the useable fuel at 100 gals. The differance may be that I have not run the tank dry so there may have been fuel remaining after I drained the tank. Also to get the tank full one needs to modify the restictors in order to allow air to escape. Also how do your Moritz fuel guages work with the higher quantity or have they been modified?      

[jhbehrens]

A standard Eagle has 75 gallon max usable fuel (filled top the bottom of the filler neck) + 6 gallon unusable = 81 gallon

The Screamin' Eagle conversion adds 14 gallon so 89 max usable (filled to the rim) + 6 gallon usable = 95 gallon

Obviously the 6 gallon unusable is part of the basic empty weight so not counted as fuel in W&B calculations.

Due to the filler neck filling the tanks to the rim takes patience as the air needs to escape

 

Jorgen

 

[carusoam]

Cris,

 

On my M20R, it takes patience, the extra 5 gals per side will go in slowly.

 

In the end, a small amount of fuel is displaced when the caps are put in place.  (this is how the tanks were filled as an unexpected "gift" when I purchased from AAA)

 

You know it is full when the fuel is level with the wing skins.  Plane must be level with the caps being in the high spot.

 

Best regards,

 

-a-

[carusoam]

Refueling procedure...

 

According to POH......

"the fuel tank is considered full when fuel completely covers the bottom of stand pipe"

 

From weight and balance section,  three gallons are unusable in each side, but can be removed using the fuel pump with fuel line disconnected from the engine.

 

From experience, from bottom to top of standpipe is about 5.5 gallons on each side.

 

3 unusable + 44.5 advertised usable + 5.5 extra usable in each side.

 

Watch your weight and balance.  Mooney uses 5.82#/gal of 100ll.

 

Remember, it's only theoretical until you prove it on your plane...

 

Best regards,

 

-a-

[Cris]

Ok, I think I am getting it. So Anthony you are able to get 102 gals total fuel into your Ovation? What do the wing tank placards indicate vs the fuel tank selector placard vs the fuel guage & what year/model Ovation do you have?  I think I have to fly one tank to empty to convince myself of the actual quantity. I thought I had it figured after twice draining the tank on the ground but now I am thinking that I never got all the unuseable fuel out when it was drained. Since the Eagle stand pipe is much differant than the Ovations I can not use that as my indicator. That one is 75 gallons as Jorgen correctly pointed out.  I did make a fuel guage with a piquette but it was based on the 50 gals/side.  That still leave me short a couple of gals but that might also be due to the level of the A/C. So any thoughts on how Mooney came up with 106 Total with 100 useable as per my referance above. And it was not due to bigger tanks according to Jose' & others to whom I've raised the question. Where I was originally going with all of this is to determine if I really have 106 gal capacity. Since the STC states to use all of the Ovation data & Mooney has the AFM supplement for the 50 Gal useable fuel tank for the M20R it would seem I could also use that in the Screamin' Eagle AFM. Now if I could just be sure of that capacity.... Oh and let's not forget the other Fuel Tank AFM supplement that Mooney produced which states that there are 51 gals/tank or 102 useable for a total of 108 http://www.mooney.com/images/pdfs/afmPDFs/51_GALLON.pdf. I understand that might actually have been a mistake by the marketing dept for the Ovation 3 but it is an interesting document. 

[carusoam]

Chris,

 

All of my documentation indicates 89 gal usable.

 

The POH gives the details in the weight and balance section. Particularly how to weigh your plane.  Either full or empty.  

 

To weigh it empty, disconnect the fuel line in front of the firewall and run the fuel pump until empty.  Then put back 3 gallons in each tank. (go figure)

 

To weigh it while full, fill it to the bottom of the stand pipe.

 

What mooney considers unusable is interesting.  The last three gallons I can remove with the fuel pump is not usable?  It does not mention what is left in the sump....

 

My annunciator panel has a real interesting miss.  When the red light for low fuel comes on, there is 2.5 - 3.0 gal usable remaining.  This was updated with newer airframes to 6 - 8 gal usable.  For this red light to be usable, the annunciator panel would need to be part of the regular instrument scan.  At low power /LOP that would be a 10 - 15 minute warning.  Land now!  Land now!

 

Again,  to follow the mooney method, empty tank using fuel pump. Put three gallons back in, start counting until you fully wet the bottom of the stand pipe.  Anything after the standpipe is wet is extra.  M20S standpipes were rumored to be different (mission profile differences).  Price was less, power was lower, endurance was lower.  All somewhat artificially.  Same fuselage, same wing, same IO-550.  Modify prop, governor, and standpipe and you get it all the performance of an O3.

 

By venting the standpipe and filling to the top of the tank, I think you will see similar numbers to what I have and what Jose has pointed to.

 

I think most critical is how well your flow meter and totalizer is working.

 

Best regards,

 

-a-

[carusoam]

Cris,

 

To answer your other specific questions, the math is in a post above.  50 usable per side, when squeezed to the maximum.  This relies on mooney to be honest about 44.5 gal per side filling up to the bottom of the stand pipe.  If there really is 3 gal per side unusable, then i am carrying 106 gal total fuel

 

I have not confirmed their numbers, i am not adventurous about disconnecting and emptying with the fuel pump.  I do not expect to fly 6 hrs non-stop either.  My most popular mission is 1.5 hr fully loaded.

 

I have the oldest ovation 1 on mooneyspace.

 

Best regards,

 

-a-

[Cris]

-A- That 106 gals now makes sense if you look at page five of the 50 gal/side AFM supplement which has a picture and http://www.mooney.com/images/pdfs/afmPDFs/50gal_useable_fuel-rtn.pdf which shows that the 44.5 gals useable on the M20R is as you describe. It is measured at the bottom of the restrictor while filling to the top of the tank gives 50 gals useable. So if you download & attach that supplement to your POH you now can legally use 100 gals useable. For me my restrictor has a longer neck so I have to mark it at a point where it gives me 44.5 gals or accept the 37.5 gal at the lower restictor level even though total fuel capacity on both A/C remains the same ie 106 gals with 100 useable.     

[Cris]

PS I do have a shadin minifuel L which works just fine but you still need to tell it how much fuel is on board which has been the struggle. Up to now I have been using 89 gals when filled to the brim but that really underestimates the total useable capacity by 11 gals.

[carusoam]

Cris,

 

It seems only proper to rent an A&P for a morning.  Drill the vent holes into the standpipe, empty the tanks using the mooney method, reconnect things and then put it all back.

 

This would also be a good time to check the vent lines and clean the sump/drain mechanism.

 

Let me know if you need a hand.  

 

Best regards,

 

-a-

[Cris]

Quote: carusoam

 

It seems only proper to rent an A&P for a morning.  Drill the vent holes into the standpipe, empty the tanks using the mooney method, reconnect things and then put it all back.This would also be a good time to check the vent lines and clean the sump/drain mechanism. Let me know if you need a hand. -a-

 

[carusoam]

Cris,

 

My stand pipes have a long v-shaped slot (from memory).  I got the plane that way.  I was not aware of the extra fuel capacity (W&B error too) until a K owner mentioned similar woes.  Jose pointed out the reality of the situation.

 

As far as fuel readings.  Both internal and wing gauges do not recognize the extra.  They are floats that are up in their maximum positions until the level comes down.  The gauges are just analog needles marked E 11 22 33 F. I don't think I have run the tanks below 11 gallons.

 

I have the FT101 ff meter.  Remember to reset it when filled.  It only totals how much was used.  My JPI is not set up for fuel flow.  My GPS is not connected to fuel level either.  Overall I have no place to enter my full fuel level.

 

Good luck on Friday.  Unfortunately I am unable (scheduling challenge).

 

Best regards,

 

-a-