Nimbus 2B flaps/trim

On Wednesday, September 13, 2017 at 8:14:07 AM UTC-6, wrote:
,"If I loosen the trim knob and take it out of the trim detents"

I have not directly looked at the nimbus 2 but all the other Schemp-hirth products I have looked at, do not have trim detents. My ventus b has a sliding knob that is located on the flap sliding tube and moves with the flap handle. when tightened this makes (thru the use of a spring attached to the elevator circuit) the control stick have pressure fore and aft according to stick position. But the flap position is not hindered unless you hold the stick from moving. Then only deterred by spring tension. So definitely something wrong there.

CH

Similar to my Mini C, but it has detents. Set the trim at best L/D and forget it. All flap settings will have 'approximately' the same amount of stick pressure at any speed.

Thanks Mike,

Sounds like I am on the same page as you. I'm anxious to find the problem and get it operating properly.

Aaron Thomson

On Wednesday, September 13, 2017 at 1:44:18 PM UTC-6, Aaron Thomson wrote:
Thanks Mike,

Sounds like I am on the same page as you. I'm anxious to find the problem and get it operating properly.

Aaron Thomson

Aaron,

Removing the seat pan is a drag but I do it every year for the condition inspection.

You may find there is minor corrosion or dried up grease that is easy to clean up and lightly lube again. Hope that is all it is. The Nimbus is a neat older sailplane.

Mike

After a thorough inspection of the flaps/trim issue, I found that the trim screw was able to bottom out on the flap actuation rod. A simple thin brass washer provided just the right amount separation without losing the trim detents and their ability to hold the trim in place while moving the flap handle through all available settings. Thanks all for the suggestions and wonderful support! STAY SAFE!

Aaron Thomson
N71TT Nimbus 2B

On Saturday, September 23, 2017 at 8:00:18 PM UTC-6, Aaron Thomson wrote:
After a thorough inspection of the flaps/trim issue, I found that the trim screw was able to bottom out on the flap actuation rod. A simple thin brass washer provided just the right amount separation without losing the trim detents and their ability to hold the trim in place while moving the flap handle through all available settings. Thanks all for the suggestions and wonderful support! STAY SAFE!

Aaron Thomson
N71TT Nimbus 2B

Have fun Aaron!!