You beat me to it.
Chortle. 115 is what you'd see at 75% with pants if the engine isn't too tired and the airframe isn't too far out of rig.
Climbing swallow
Thinking you'll get 5 knots due to wheel pants (with a fixed pitch prop)? Now that makes me laugh!
Oh I don't mean to knock it. I just always viewed the 172 as being similar to a cub in that it does pretty much everything (climb, cruise, descend, etc) within a speed band of just a few knots. Close enough for margin of error IMO. Then again I usually climb with the horizon in sight. Better cooling, better vis, yada yada. If you like to climb at vx all the time, then I suppose it might make a difference in your flight planning. I just always thought of it as a plane that does everything at 108 but I'm lazy and probably shouldn't be trusted.
That's the way I feel about my Beech Sport. It's sower that a 172, I think that's why they put mph as the outer ring on the airspeed indicator..
That's the way I feel about my Beech Sport. It's sower that a 172, I think that's why they put mph as the outer ring on the airspeed indicator..
I rotate at 70mph, climb at 95mph (that's about 500fpm), cruse 120mph @ 2500rpm, over the fence @ 75mph. Stall 35* flaps 57mph.
I've owned the Sport for 23 years and it has taken me were I want to go (slowly). I feel lucky the Sport has allowed me to enjoy, the excitement of flight.
Now I have a cousin who is retired UASF, he flew B-52's and U-2's. He told me he was done flying. Nothing in GA, excites me enough to fly anymore. Sort of feel sorry that he has lost the passion to fly. But I can see his point.
But at what altitude? Getting 75% in thinner air is worth a few knots compared to down low where it's dense.
Yeah, but you still need to know what that number is, for fuel planning. Also, Vy in a 172N is 73 knots (at sea level), which is 34% less than 110 knots, a difference that is not really negligible.
I think a fresh engine might maintain 75% to a higher altitude than a tired one, hence a couple knots difference.
Yeah I typically don't climb at Vy either unless terrain or ATC dictates that I absolutely have to. I want to see what I'm about to hit so I put the spinner at the horizon and you get what you get. Doing it that way, you still usually see around 500'/min and airspeed is north of 90 but visibility is virtually the same a cruise.
At the ideal altitude, with pants, a decent rig, and not too heavy 120KTAS at 75% is not unreasonable according to the G1000.
In a rental, max continuous is just a suggestion.
That's downright respectable for a skyhawk. The majority of my 172 hours are behind 180hp motors albeit without any of the other mods you have or even wheel pants most of the time, and I never saw anything near that speed.
That's downright respectable for a skyhawk. The majority of my 172 hours are behind 180hp motors albeit without any of the other mods you have or even wheel pants most of the time, and I never saw anything near that speed.
