Flying with the Carb-Heat on for a long(er) tour?

noah wrote:

Basically - is it bad for the aircraft (C172) to float around at
around 85kts with the power somewhere below the green arc (say
1800rpm) and the Carb-Heat on? Ok, there is a second benefit - my club
charges based on tach time, and I have to be honest about that -
although I really do wish for the tours to be slower.

No problem, but, as Peter says, lean the engine.

George Patterson
If you're not part of the solution, you can make a lot of money prolonging
the problem.

Thanks everyone for your replies...

Next time I'll fly with the rpm I want, and use Carb Heat below the
green arc as the POH recommends.

BTW: the Bay Tour definitely causes 'Ohh's and 'Ahh's. Even the first
two times I went (no pax) it was tough to stay focused on
traffic/airspace and not just enjoy the view. PS: Now (with pax) I
won't touch a camera at all, and just scan for traffic - as I've seen
quite a bit of traffic going North/South between the GGB and KHAF -
not to mention the low flying tours around the GGB and San Francisco.

Cheers,
Noah