EC225
Joined: Sep 2007
Posts: 244
Likes: 0
From: Birmingham
Joined: Feb 2009
Posts: 20
Likes: 0
From: Vietnam
Hi.
I think It has the margin bigger power on the take off time until the speed reach V1 then the Margin power back to normal. So the reason when A\c reach V1, we need reduce power, other ways, the HUM will record exceed.
I think It has the margin bigger power on the take off time until the speed reach V1 then the Margin power back to normal. So the reason when A\c reach V1, we need reduce power, other ways, the HUM will record exceed.
Joined: Aug 2004
Posts: 2,105
Likes: 50
From: Aberdeen
* sliding scale from 100% at 45kts to 82.7% at 60 kts and above. Which is daft because the torque meter only reads in increments of 0.5%!
In case anyone is wondering, this is because of the torque distribution between the main rotor and tail rotor. In the hover / at low speed, the tail rotor takes a lot of torque so less is available for the main rotor, but at higher speeds most of the torque goes to the main rotor so it's necessary to reduce the overall torque so that the main rotor isn't over-torqued.
Joined: Aug 2004
Posts: 2,105
Likes: 50
From: Aberdeen
V1 is 45kts for CAT B but may be something else for CAT A!
