Several days ago I got the Luscombe's right wing tank drained, refueled, dip stick calibrated and gascolator tightened down and safety wired. Yesterday was my first chance to go flying to ops check fuel burn rate. Before take off the full left tank indicated just above 3/4 full, the right tank indicated half way between 3/4 and Full, maybe 4/5. AWOS temp on the deck was 13C. I have no OAT gauge for determining it in flight. AWOS re[ported DA of 1400 fleet. Pressure Altitude was 1230. Take off wind was a solid 10 kt direct cross so I came right around and did a touch and go for practice. I then set off on my triangle course that Foreflight had told me would take 58 minutes, calculated from winds the day before when I planned. This was not TPS worthy. I didn't get a winds update. I didn't fly a complete hour in cruise. And I didn't calculate any "true" values. Everything was indicated. I had an AME that never took fasting labs "because that isn't how we live our daily lives." I don't know if that was a good medical philosophy, but it was how I conducted this flight.
After the touch and go I climbed to 3500 feet and flew for about 25 minutes, made my turn and climbed to 4500 for proper altitude for direction (highest I have flown this plane ). On the first leg Forelfight logged a gps ground speed of 68 kts. I flew the entire flight at 2100 rpm and 90 mph indicated (78 kts). Next leg ground speed was closer to indicated airspeed. Before I made the entire planned route it was clear I'd be over 60 minutes, so I eventual flew straight back to home plate. I made a gradual decent to the 2500 feet pattern altitude at 1500 rpm and 90 mph. I shut down at the fuel pumps 58 minutes after take off.
Take off, touch and go, step climb to 4500, decent and a landing burned 4.3 gal in 58 minutes. The 6 page Owners Manual of Operations lists 4.5 gph burn inn cruise without reference to power setting or altitudes. With fuel gauges reading low, a calibrated dip stick, and rounding up to 5 gph for public school arithmetic I should never run out of gas. ?
After the touch and go I climbed to 3500 feet and flew for about 25 minutes, made my turn and climbed to 4500 for proper altitude for direction (highest I have flown this plane ). On the first leg Forelfight logged a gps ground speed of 68 kts. I flew the entire flight at 2100 rpm and 90 mph indicated (78 kts). Next leg ground speed was closer to indicated airspeed. Before I made the entire planned route it was clear I'd be over 60 minutes, so I eventual flew straight back to home plate. I made a gradual decent to the 2500 feet pattern altitude at 1500 rpm and 90 mph. I shut down at the fuel pumps 58 minutes after take off.
Take off, touch and go, step climb to 4500, decent and a landing burned 4.3 gal in 58 minutes. The 6 page Owners Manual of Operations lists 4.5 gph burn inn cruise without reference to power setting or altitudes. With fuel gauges reading low, a calibrated dip stick, and rounding up to 5 gph for public school arithmetic I should never run out of gas. ?