M20F w/201 mods

[MyNameIsNobody]

On 12/8/2017 at 5:52 PM, Browncbr1 said:

I think she’s runnin’ a little rich of peak...  still a little rough though. 

NOPE, runnin’ smooth down in the canyons.

[skydvrboy]

On 11/28/2017 at 3:40 PM, Tx_Aggie said:

My question is what to flight plan TAS for. He says the only thing different from his plane and a normal 201 is the one piece belly, so in my opinion, knocking 1-2 knots off, can I expect to plan on 152-153 KTAS? Or should I plan closer to 145-150? When I asked the question in the C, then flew the airplane on the cardinal heading test I found that 138 KTAS was better to use than the 142-144 KTAS others were telling me.
 

To your original question, my Mooney is set up very similar to yours with just about every speed mod available.  I have flown 105 kts in climb, 140 kts in cruise, and 160 kts in descent.  But the point is none of that matters if you don't discuss rate of climb, rate of descent, manifold pressure (or altitude), and mix settings (or fuel flow).  Could I have flown faster... Sure.  Could I have flown slower... Absolutely.  My last 5 hours I have been cruising at 105 kts, because we were looking at Christmas lights and burning 6.7 gph total.

Since the original question has been answered, I'll continue the hijacking and the more important questions of how you run the engine to get comparable numbers.

So, do you guys calculate fuel burn based on tach hour or Hobbs hour (actual time)?  I have been using actual time flown, but my AI says it should be calculated from tach hours to reduce variability.

Edited December 20, 2017 by skydvrboy

[jetdriven]

Fur burn is pretty accurate when counted via clock time aloft plus 2 gallons for taxi and runup etc.