PDA

View Full Version : Questions regarding AS 365 N2


nickel
30th Mar 2011, 19:15
Hi,

I have a few questions about AS 365 N2. It seems like it is not possible to find a flight manual for this helicopter and configuration information is relatively sparse (except for basic things, they are plentiful!) in Internet.

I appreciate the help if anybody knows following:
- What is the nominal engine, main and tail rotor RPM's
- What are the main and rail rotor twist?
- In tech specs it is listed that the Vne for this helicopter is 303 km/h. What I would like to know is, what happens in AS 365 N2 after Vne? Stall? Excessive vibration? Is the helicopter able to exceed Vne in level flight?

Thanks in Advance

Epiphany
30th Mar 2011, 19:58
- What is the nominal engine, main and tail rotor RPM's?

Well....off the top of my head.....

Ng - 51800 rpm (@100%)
Nf - 41586 rpm
MR - 350 rpm
TR - 4706 rpm

- What are the main and rail rotor twist?

MR blade twist is 6 deg (0 deg at tip to 6 deg at root)
Fenestron blade twist 7.2 deg (2.2 at tip to 9.4 at root)

Main Rotor -
- In tech specs it is listed that the Vne for this helicopter is 303 km/h. What I would like to know is, what happens in AS 365 N2 after Vne? Stall? Excessive vibration? Is the helicopter able to exceed Vne in level flight?

Gawd knows - retreating blade stall I would imagine but I have never wanted to find out and I doubt if you would reach VNE in anything other than a dive.

nickel
31st Mar 2011, 19:23
Thanks for the answers!

Do you also know the collective and cylic ranges of the main rotor and collective range of the tail rotor?