L Edge
Master member
Looking for a new plane to build that doesn't exist, ended up on wondering why a forward swept wing(no fuse or tail) hasn't been designed. I explored an aft swing wing and ended up with 2 new tools added to tame it's stability so it can fly in gusty winds. So off to do the research and found it is ten times worse to try to deal with a FSW with it's stability problems. The only way to get past it was to add a fuse to it and use other devices to solve stability problems. I will try otherwise.
This is my third project working with FSW's so I am aware of moving cp's, but found some other interesting info so I am going to see if I can beat it and get it to fly.
So HERE GOES THE PLAN:
It is going to be a 45 degree FSW that will max out at 35 inches wide where the wing tips are 6 3/4 inches and the joining center length is 13 and 1/3 inches.
I am going to use a 64mm 5 bladed EDF so the centerline is stepped up to 1/2 height of the battery. It is going to be mounted by hot glue in the nose held in by balsa so if will rip free if impacted.
FSW have problems with bending and twisting in the wing so I added a carbon fiber strip to the leading edge and a fiber tube to reduce those effects. Also, with this setup, doubt any high speed problems to worry about.
When 2 halves are glued together, this is what you get.
Bad feature, is carbon tubes are not long enough and can't criss cross. So did this.
Using basswood 1/32 thick, I heat the wood up with a iron and when it is very warm, apply hot glue to foam and mate the two togeather. Excellant way to strengthen a foam joint and tubing.
With the EDF mounted, this is the top surface showing if the EDF get hit. it should pop free and possibly be saved. Again, the centerline of the motor is 1/2 height of the battery.
Front view
Notice carbon fiber strip on leading edge.
Here is the end plate I designed so it helps to reduce twisting of the wing.
Section was added below wing so when it lands(if it does) the servos and other electronics don't get ripped off.
I must note that this project has taken months to design due to building problems and how to resolve issues as they developed or as I became aware of.
This is my third project working with FSW's so I am aware of moving cp's, but found some other interesting info so I am going to see if I can beat it and get it to fly.
So HERE GOES THE PLAN:
It is going to be a 45 degree FSW that will max out at 35 inches wide where the wing tips are 6 3/4 inches and the joining center length is 13 and 1/3 inches.
I am going to use a 64mm 5 bladed EDF so the centerline is stepped up to 1/2 height of the battery. It is going to be mounted by hot glue in the nose held in by balsa so if will rip free if impacted.
FSW have problems with bending and twisting in the wing so I added a carbon fiber strip to the leading edge and a fiber tube to reduce those effects. Also, with this setup, doubt any high speed problems to worry about.
When 2 halves are glued together, this is what you get.
Bad feature, is carbon tubes are not long enough and can't criss cross. So did this.
Using basswood 1/32 thick, I heat the wood up with a iron and when it is very warm, apply hot glue to foam and mate the two togeather. Excellant way to strengthen a foam joint and tubing.
With the EDF mounted, this is the top surface showing if the EDF get hit. it should pop free and possibly be saved. Again, the centerline of the motor is 1/2 height of the battery.
Front view
Notice carbon fiber strip on leading edge.
Here is the end plate I designed so it helps to reduce twisting of the wing.
Section was added below wing so when it lands(if it does) the servos and other electronics don't get ripped off.
I must note that this project has taken months to design due to building problems and how to resolve issues as they developed or as I became aware of.
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