Cox TeeDee .020 Prop comparison (193km/h)

Tach rpm readings / prop pitch speed:
?x4.1N - 29,392 @ 1.02 mins. / 114 mph - 183.5 kph
?x4.7N - 27,051 @ 2.02 mins. / 120 mph - 193 kph
?x3N - 31,573 @ 5.48 mins. / 90 mph - 145 kph
4x3 - 28,667 / 81 mph - 130 kph

[@Agirparez]

I love this things 👍👍

[@mikesrcgarage]

Nice prop comparison, what plane is that? I've never seen a Cox engine rip like that... Impressive!

[@mikesrcgarage]

Just found it in your list very cool lil plane I fly some electrics that are similar, never thought a Cox could be that fast. Is this setup like what they used to call a 1/2A plane?

[@flyingthingsMGB]

Thank you! Here is a build threat of all the planes and the setups :) Its much fun!

[@OkiThumper]

Real peddle to the metal flying there. What prop did you find performed the quickest flight?

[@flyingthingsMGB]

I added some info to the description. After feeling the one with more rpm, but that's deceptive. :)

[@aeromodelisme45]

Ca va trop vite pour moi !