Which variant is right, how do you think?

I think its correct since there will be an increase in Relative Airflow hence an increase in lift.

Here is a almoste same question with another answer.

A helicopter is hovering and the pilot applies right pedal. Assuming the main rotor rotates anti clockwise viewed from above, the helicopter will
• descend, unless the pilot inches the throttle open.
• descend, unless the pilot applies more collective pitch.
• ascend, unless the pilot decreases rotor RPM

And the right answer is the first one, then should be this wrong also? In my experience I have flown with Robinson R44 and when you apply right pedal then you descend.

rotor rpm is Governed at a constant 100%

main rotor is turning anticlockwise,
torque effect on the body is acting clockwise.
tail rotor is against the torque effect (power taken some from the main gearbox). hence named anti torque pedal.

when right pedal is press, you are moving the body of the heli clockwise. by doing this u r lessening the tail force to counter torque effect on the body.

there will be an excess of engine power at that particular level of hover which drive the main gearbox and which were used to counter the toque effect initially.
This excessive energy is going to be used on main rotor which increase the rpm of main rotor. hence the aircraft ascend.

I believe this question is asking on basic helicopter design without governor or anticipator.

let us shall we discus more about this.

sammtimss134... basic helicopter have collective pitch lever with end of the lever having throttle control..

this question is on the pdf with 2 different answers can anyone clarify which is the correct one please?Because talking is good but we still havent found what is the correct one.In my opinion is should be the descend on.Because pressing the pedal only moves the helicopter left or right it doesnt ascend.

descend until inches the throttle open