Bomb Bay doors--part 2...
First door attempt had way too much drag and binding--but it did what a prototype is supposed to do, identify areas needing changing.
So I did some thinking on how to reduce drag and came up with following, in the order of most drag reduction first:
1. Decrease size of bay doors 1/16". Doors are now 1/8" smaller than opening.
2. Decrease size of pins. The reduction is small, but turns out every little bit helps.
3. Pre-flex the door. Folding it back and forth on itself at each corrugation really increased flexibility.
4. Standardize pin installation so all at same location with respect to corrugation.
All these added up to a door that easily slides on the track and can easily be handled by a servo. So now need to finish the other three doors and start working on torque rod/door connectors. Pics tell the story...Pete M
First door attempt had way too much drag and binding--but it did what a prototype is supposed to do, identify areas needing changing.
So I did some thinking on how to reduce drag and came up with following, in the order of most drag reduction first:
1. Decrease size of bay doors 1/16". Doors are now 1/8" smaller than opening.
2. Decrease size of pins. The reduction is small, but turns out every little bit helps.
3. Pre-flex the door. Folding it back and forth on itself at each corrugation really increased flexibility.
4. Standardize pin installation so all at same location with respect to corrugation.
All these added up to a door that easily slides on the track and can easily be handled by a servo. So now need to finish the other three doors and start working on torque rod/door connectors. Pics tell the story...Pete M
Comment