Bob Lee wrote: > >From the photo, it's not clear to me where you are mounting the motor end of > the flap actuator. I would suggest that you include a walking beam from the > motor end of the flap actuator to a tab on the bottom of the flap torque > tube.
Good point, and I'm sure it would work great, but the flap motor will only need to work hard when deploying the flaps, which is pulling the tube in the photo. Pushing the tube will retract the flaps, but I'll have air pressure helping out there, so it won't be working very hard in that direction. That's why I didn't bother to completely surround the tube with nylon bearing surface. I saved weight and hassle that way. PLUS, now that the flap bellcrank can actually be pushed too far in retraction, I can get a little bit of "spring" action by deflecting and twisting the torque tube and keep the flaps tightly retracted without any slop. Another thing is that I don't have room for anyting bigger than the actuator's tube. Any higher and I'd be into the bottom of the seat (and I don't want to limit my butt by an armrest), and any lower and I'd be through the floor. The bracket has since been installed, and is an aluminum angle. I reinforced the floor with two more layers of plywood (to answer your stiffness question). The plywood is built up in tiers to spread the load out over a large area, so I think I've taken care of that. The only reason I haven't replaced that picture with a newer one is that I don't have the flap torque tube back in place yet, so I'm too lazy to do it twice, but when I do I'll post it... Thanks, Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
