Jump to content

Recommended Posts

Posted

Tom-

 

Glad you stayed in the Mooney family and glad you remained flying. 

 

Your new bird looks fantastic - the HP increase makes a huge difference.

 

-Seth

Posted

Congrats! I was considering that bird because of TKS which I want in the north east, but it was a bit rich for me.

Those are some amazing speed numbers btw!

Posted

Spent some time in the plane last week, programming the EDM 830 for MAP and HP.

I found that at 4000 feet with MAP 22.6 and RPM 2400 I was getting 171 KTAS on 15.8 gph. Not real confident on the FF because the K-factor still needs to be fine tuned.

 

Is this in line for the 310 HP upgrade on the Ovation?

Posted

O1 burns the same as O3 at cruise...

Major difference is O3 is capable of 2700RPM... Nice for T/O and climb...

Stock O1 is limited to 2500RPM... 165kts LOP, 12gph or 175 kts ROP 15gph (roughly speaking,@11,000')

O3 has different prop, rpm controller and cylinders. = STC... Standing O or Sceaming Eagle.

Ride quality costs the extra. 6cyl is extra smooooooth....

Best regards,

-a-

Posted

Even ROP that is 50% more fuel than a J would burn while only going 10-12 knots slower.  Surely that's not right?

Jim

well, not quite. My M20J would routinely fly 150 KTAS on 9.2 gph LOP at 7,000 feet.

 

It is certainly not double (18.4 gph) but still a lot more than the "J" even at +21 KTAS.

 

The Mooney M20J/201 is certainly one of the most economical airplanes ever built. I knew I would give up some efficiency, I am just trying to set a baseline to work from.

Posted

With the LoPresiti cowl, Power Flow exhaust system, and all the other mods, I can generally achieve 160 KTAS at 7,500' (smooth air, a bit cooler than std), Ram Air open, at about 9.8 GPH LOP. 2550 RPM. A bit faster at much more fuel flow ROP.

Posted

For those that asked, here are some cockpit pictures from our flight today. 

Still having issues with keeping #5 CHT down. I know the ALT blocks the cooling and it is a known problem. 

I am not willing to accept the +40°F or so elevated temps compared to the other CHTs. 

 

With the 310 HP upgrade and the TopProp she wants to leap into the air. At 120 kts. she will climb at 1200 fpm. but #5 CHT will not allow that to happen for very long.

post-6909-0-10951700-1368756734_thumb.jp

post-6909-0-05665200-1368756735_thumb.jp

post-6909-0-16283000-1368756736_thumb.jp

post-6909-0-06997600-1368756737_thumb.jp

post-6909-0-22485900-1368756738_thumb.jp

post-6909-0-02308800-1368756739_thumb.jp

post-6909-0-15357000-1368756740_thumb.jp

  • 2 weeks later...
  • 3 weeks later...
Posted

Cruiser   "I found that at 4000 feet with MAP 22.6 and RPM 2400 I was getting 171 KTAS on 15.8 gph."

 

For standard day at 4000' when running 50 LOP at 2400 RPM and 22.5 MAP,  the POH shows 65% power,  FF of 12.3 GPH and 173 KTAS.

 

At 19.9 MAP, FF drops to 10.3 for 55% and KTAS is 162.  Congratulations!

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.