Throttle Friction?

[Crescent]

Hola. What have some of you done (mechanically inside your tq) regarding simulating throttle friction? Thanks.

[Michael Carter]

I used very large nylon fender washers on each side of a throttle shaft and tightened until they had about three pounds of push, give or take.

The rubber dust seals in the throttle channels adds some too.

[Mike.Powell]

Hola. What have some of you done (mechanically inside your tq) regarding simulating throttle friction? Thanks.

See the pictures under the Jan 30 entry here: http://www.mikesflightdeck.com/

The white material is high density polyethylene. It provides the friction.

[Buddym]

I used large washers as well, with a thin rubber washer in between the parts. I also used one of those lock nuts with the nylon inserts in them to apply the desired amount of pressure.

[Spatate]

I have seen someone using the composite of a windshield washer can (you cut it the shape you need)...

its cheap and seems to provide what you are looking for...

[Crescent]

Thanks guys, that gives me some great ideas.

[npbosch]

I used another way.
I extended the throttle levers beyond the pivot point (deep in the center pedestal).
These extensions are guided by mdf plates holded in place by 2 rods. The plates can get tightened or loosened by 2 rods throuhg the plates.
See the pic here

http://home.wanadoo.nl/norbert.bosch/throttle.html
scroll down to throttle07.jpg , click om it for enlargement

Later on ,I am planning to attach the autothrottle system to these extensions too.

[Jackpilot]

I did the same than Norbert
The levers rotate freely on the fixed main axle (on brass bushing to avoid aluminum wearing on steel)
The friction and vertical guidance (no lateral wobling) are taken care of by the extension of the levers .
The feel is very different from having friction on the axle itself.
It feels like the levers are moving heavy stuff further down there.
The friction plate is circular to keep the same friction surface on the lever travel