take-off problems

[thrustvector]

ok, I'm pretty new to the 8, so maybe a simple thing but, when I take off, I always veer heavily to the left, like really bad. if I was just to throttle up itl tip over very quickly, I need to use rudder heavily to the right and stick to even get of the ground.

this is with no weapons or indeed some it doesn't matter.

I have tried a stationary trim, rolling start always the same, auto pitch/roll/heading on/off.

get this even on take off from runway in case its something I'm not switching on.

checked control settings in case they were slightly off, all centred.

now, if I do get up, once I'm in forward flight its all fine, rudder returns to centre, trimmed out can fly around all day, just a really scary take off?

[FragBum]

Okay as you lift collective you will need to put some right anti torque pedal to compensate for the rotor load.

 

Also

 

As you lift collective you need to bring the cyclic back and slightly right to compensate for main rotor thrust (lift) vector.

 

The fun part is doing it as one action, the tip over bit says you cyclic slightly forward and maybe left or right with cyclic sort of Huey style. Use "Ctrl" & "Enter" to bring up the input controls display.

 

The Mi-8 will take a bit to get used to but it is a great bird to fly.

[thrustvector]

thanks frag ill give it a go, yea I find in flight she is so stable, even landing I have got used to in a day, but the lift off....arghhh

[John Hargreaves]

I'd also double check that you don't have any other input devices assigned to any of the axes that might be interfering with your own inputs. I have a few other things plugged in to my PC, racing wheel, pedals etc, and I always have to clear the default assignments for them before I can fly a new module otherwise it will fly all over the shop.

[FragBum]

Okay I'm no expert but look at the position of controls in the video, might help.

 

Because you have a pogo stick kinda under you at the front you can vector main rotor to push you over forward left or right.

 

As you lift collective try to get a feel for the thrust vector and the balance point of the helicopter, the aim is to lift vertically and that may not coincide with the AC actually being level.

[SnorreSelmer]

My best tip for learning good takeoff habits: never use the parking brake once you start taxiing. Use the cyclic to accelerate and decelerate, trim once you're in position for takeoff. With the parking brake off you'll see what the helicopter us trying to do, instead of it taking you by surprise once it lifts and releases all that stored energy.

 

Sent from my SM-G950F using Tapatalk

[thrustvector]

thanks guys, I'm gradually getting it to lift of better, the control tower is so scared of me anymore flying round it circles at them :).

using the cyclic a lot slower has enabled me, as you say to feel which way its going to pull, didn't realise till now that's what happens when I land too, the different amounts of power in the engine actually pulls the copter left and right, so diff from the shark,

loving this bird!

[Art-J]

so diff from the shark,

loving this bird!

 

Welcome to the world of classic-layout rotorcraft, where not a single part of the airflow around the vehicle is symmetrical, neither in hover, nor in cruise. Don't hesitate to RTFM for the Hip, as it has a nice, short chapter explaining these idiosyncrasies ;).

 

Coax rotor machines like Kamov might be condsidered almost completely different category of aircraft altogether...

Edited June 26, 2018 by Art-J

[thrustvector]

haha yea I read that, been practising all day and thanks to the help an advice take offs are about 75%, so cheers all

[Looney]

When learning the Mi-8, be prepared to dance the Conga a long time before you master the hover.

 

Take it slow and easy, slowly increase collective, small steps and compensate on what you see. Veer to the right, add left pedal. Rolling forward, reduce cyclic input.

 

All in very small steps. If the helicopter is stationary and not moving, increase collective a bit and do the whole thing over again.

 

Once you're in a hover, check the settings of your control using LCTRL-ENTER to see where they are. Land and do the whole thing again, maybe somewhat quicker this time because you know what will happen and where your controls should be in the end.

 

Do not try to compensate any wild behaviour of the helicopter as this is usually Pilot Induced Oscillations by overcompensating with one of the three control inputs.

Simply land, wipe the sweat from your forehead and start again.

 

Baby steps my friend, baby steps. She's a woman and wants to be coaxed into a stable relationship, not forced into cheap labour.