McCauley 7140 vs. 7440

TurboBeaver said:

While it will always be true the old saying " the only thing that will beat a cub, is another cub" is usually true , However the physics of a 180lb pilot vs a 95lb one is a tough thing to get around................
I still have some old VHS footage, of her getting off with a puff of wind helpin her, in 3.5 secs one year , straight out of the hole, no over the step planeing involved! Pretty impressive stuff. in the film you can hear someone in the crowd say" did you see that she went straight out " To beat that hundred pound weight advantage, she brough to the boat with the flags in it , you had to
really be "haulin the mail" as that's quite an advantage....................... she did a great job of keeping a lot of ours egos in check. Down in this low horsepower range , weight is almost always the king. Of course there is exceptions to everything, as she was beat before. Like boxing your only the champion for a while.

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JimC said:

Continental Sea Level power curves for the C85, C90, O-200, & 9.5:1 O-200

Note that Continental had a bad data point for the C90 at 2350 rpm. That point was low by 1 hp.

Ain't nuthin' like climbing out a 9.5 O-200 J3 landplane at 55 mph with only 3 gallons of fuel on board and a 7535 prop turning 2850 rpm for about 113 hp. Big grin while doing that.....
Caution though -- be careful not to unport the nosetank outlet.

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