Airspeed, and the groundspeed was pretty close to that, average.
See, I got 6 cylinders on my 182 redone. And the conventional wisdom is that they need to be run hard for “Break-In”…
For 10 hours. at 75% power.
75% at 5500 feet works out to be 142 knots. a knot is 1.15 statute miles per hour. You can do the math.
Now, I am not sure why the “Break-In” time is a magical 10 hours….It would seem to me that after an hour or so the rings and cylinders would be worn together…I mean, I have rebuilt hundreds of other types of air cooled engines and they are considered “Broken-In” after 30-45 minutes….the rings and the cylinders have worn together and at that point oil consumption goes to whatever is “normal”. I mean, I am talking from 5 hp mower engines to high compression multi cylinder air cooled diesels. All had the same break-in characteristics and roughly the same timing. the general wisdom was an hour under a half or better load to seat the rings and wear the cylinder finish to properly hold the oil for compression.
But I don’t get a warranty unless I do (and log) the break in time as per recommendations. So I am doing the break in per the specs.
Today, 3:19 ….450 miles more or less. One landing. About half flown by hand, the rest I let the autopilot (“George”) fly. Got the engine nice and warm burnt a lot of fuel.
I gotta say that central Indiana and Illinois are still having lots of traffic on the roads. Aaron says that his area is way down in traffic, but I did not see that on the roads over which I flew. Larger state highways, Interstates, US highways…all fairly normal. Even Indianapolis roads were not terribly empty, at least not on the north side.