As for take off performance I was able to get into ground effect in 400ft, accelerate in ground effect, and pull to an inital climb from 90mph slowing to 75mph (approx Vy) at 1500fpm and stabilizing at 700fpm up 2000agl. This was from a field elevation of 500ft with a DA of 2200ft. This was also accomplished by popping the flaps which I have found is the best way to get off the ground with the little 140. During take off runs there was no wind, I think with a favorable wind and temperatures I can be sub 300ft on take off roll pretty realistically.
After making tweaks to the rigging and adjusting the trim I am now getting an indicated, and gps verified, 100mph. Before the Airstreaks I would see between 105 and 110 depending on weight. All in all I am very happy with the cruise performance. Roll rate at maneuvering speed has slowed down a bit due to the Airstreaks, but it was to be expected, and there is still really great aileron feel and roll rate.
Landing is where my biggest complaint comes up with the 140. Cessna uses a elevator trim tab vs a jackscrew system. I simply run out of elevator trim with how the plane sits now. Granted I am still on a scott 2000 tailwheel and a swap to a 3200 with the Airstreaks, I think, will be a must. However, I will make due with the 2000 for now. After doing some different landings, I have found, what works for me best is 20deg of flaps( more of a speed brake really) but 20 deg kills all float and in the round out and flare it'll touch down pretty nice in a 3pt, but everything has to be right on. Comparing this to a J-3, is that I could have the worst approach and flare and the J-3 would be damn near perfect on touch down every time. However, I was lucky to get 65mph out of the cub in cruise and the 140 is giving me an honest 100mph, double the range, and an electrical system, so it has a lot better overall utility.
This all comes down to mission and such which everyone has a different one. But as far as cheap to operate goes I have no major complaints, and the ones I do have are nothing that a little technique can't fix.
As sort of an added bonus my 140 does have some easy weight loss options. I am still running the original pull starter, and generator, as well as a pretty heavy battery. I can lose about 30lbs there alone, and I believe there is some more weight to be lost as well but I will go down that rabbit hole at a later date. For now I am just going to keep flying her and get more proficient. Which is pretty easy to do when you are only burning 5GPH.
More photos to come soon!






