Density Altitude Gross Weight Knot 
Flying Magazine
JUNE 10, 2025
I took off from Runway 34L at 169,800 pounds gross weight, rotated at 1.8 minutes, covered 1,722 nm at an average ground speed of 511 knots, and burned 22,200 pounds of jet-A. Below 500 feet I got a bit slow, momentarily down to 147 knots, versus a reference speed of 144 and target of 152. I hand-flew the first 13.3
Pilot Institute
MAY 4, 2024
In the Cessna 172S Pilot’s Operating Handbook (POH), the landing distance decreases by 10% for every 9 knots of headwind. For the Cessna 172, landing distance increases by 10% for every 2 knots of tailwind. Aircraft Weight and Limitations An aircraft’s weight affects inertia and stopping distance.
Plane and Pilot
OCTOBER 3, 2024
We routinely taxi at 1200 rpm due to the low spray…[we] can cruise at 10 knots” in displacement mode, something a Goose can’t do. Early on a speed restriction of 130 knots was applied as a flutter issue. This was resolved on the kit version and led to cruising at 50% power and 120 knots, which proved to be the Gweduck’s sweet spot.
Expert insights. Personalized for you.
110 
Let's personalize your content