Dave Jackson wrote:

Brien wrote

What is the % of power a tail rotor at max pedal input takes . Does a
Hughes 269 require the same tailrotor % of power to the 180 hp that a UH-1
of it's 1400hp?


The Americans say 5 - 10%.
The Russians say 10 - 15%
Simon says " Drop the tail rotor and take rotorcraft to the next generation"


I like your answer.

I'd always heard between 5-15%, approximately of course.

For the most accurate answer to that question, you'd really have to
talk to the engineers at Hughes (make that Boeing-MD nowadays) and
Bell. For a general answer, I'd say yes, they are probably pretty
similar.

Besides it depends in flight regime- the vertical fin makes a
difference hovering in a crosswind, flying at any speed.