Bunky.F.Knuckle
150cc
Because the full scale ship got a boost in engine performance. Went from 300HP to 330HP.
IMAC The new Dalton 300 SP / 330
- Thread starter orthobird
- Start date
I will start working on finishing the stabs now. 1st step, is to glue in the stab phenolic.
Made some "donuts", that will be placed on the inner side of the fuselage tail.
just testing the fit on the phenolic sleeve.
once they were placed on inside, there were glued on with Hysol.
NOw, not illustrated, but once the glue was placed, it is critical to use an angle finder, and make sure the stab tube is square on the fuselage. I got it to 0.0 degrees.
once the Hysol cures, I will then cut off the excess and then make the phenolic tubes to glue into the stabs with the stab phenolic balsa supports.
We will also get to use the new vacuum bag technique. All of that equipment has arrived,and it will save me from doing all that heavy lifting.
Made some "donuts", that will be placed on the inner side of the fuselage tail.
just testing the fit on the phenolic sleeve.
once they were placed on inside, there were glued on with Hysol.
NOw, not illustrated, but once the glue was placed, it is critical to use an angle finder, and make sure the stab tube is square on the fuselage. I got it to 0.0 degrees.
once the Hysol cures, I will then cut off the excess and then make the phenolic tubes to glue into the stabs with the stab phenolic balsa supports.
We will also get to use the new vacuum bag technique. All of that equipment has arrived,and it will save me from doing all that heavy lifting.
got a little bit more done, before I turn in. Tomorrow, I have permission to fly all day, with a high of 71 F, and winds at 6 to 8 MPH. Should be a nice day tomorrow. Will try to practice that routine several times.
Here is the balsa stab tube support. It is thinner than the slot in the foam.
Does not occupy the slot completely, I want it to though.
I combined it with a 1/2" thick balsa and sanded it down, and used a Forstner bit to make the hole.
Now it is snug.
I have cut off the right and left phenolic off the fuselage, since that segment is now cured. Have also capped them on both ends. They are ready to be glued on. Trying to decide on which glue to use.
Maybe epoxy resin for this. Not sure yet.
Also, will need to glue in the hard point for the anti-rotation pin that goes into the stab root.
then, I have to decide whether I will be gluing the root cap 1st, or after I sheet the stabs. Plenty of time to think about this as well. No hurry.
Here is the balsa stab tube support. It is thinner than the slot in the foam.
Does not occupy the slot completely, I want it to though.
I combined it with a 1/2" thick balsa and sanded it down, and used a Forstner bit to make the hole.
Now it is snug.
I have cut off the right and left phenolic off the fuselage, since that segment is now cured. Have also capped them on both ends. They are ready to be glued on. Trying to decide on which glue to use.
Maybe epoxy resin for this. Not sure yet.
Also, will need to glue in the hard point for the anti-rotation pin that goes into the stab root.
then, I have to decide whether I will be gluing the root cap 1st, or after I sheet the stabs. Plenty of time to think about this as well. No hurry.
stangflyer
I like 'em "BIG"!
Cam, What an absolutely impressive and top shelf build. With the progression of each photo and description, I find myself so wanting to attack a build like this. I've not done any "true" building in years. Mostly because of limited space. But now I am thinking, Who needs a living room right? Gorgeous my friend...simply gorgeous.
stangflyer
I like 'em "BIG"!
Heeeey..... wonder if he's related to me and my buddy over here. I really need to get a photo or two of my friends 47% Decathlon in his living room. He also has a Turner Special he ordered from Vogelsang. Just massive coolness right there.
Looks like the weather is insisting I work on the Dalton today. Lol
got a bit more done after I got home from Flying at the club.
It was a fun time.
I am preparing the stabs for the hard point, that goes on the front end of the stab. This will be for an anti-rotation pin. With the airplane level, you drill from the opposite side, into the stab root, and set the incidence. On this airplane, this will be set to 0.0 degrees.
1st step, insert the stab on one side, and from the other side, use a heated up drill bit tip that is long, and only enter the foam by 1 cm or so. This will give you an idea of where the hard point needs to be.
I am using a wood dowel, about 2 cm deep.
Then, burn the foam into a depression, such that, the wood dowel can be glued into this area.
I proceeded to glue the hard points, as well as the stab tube phenolics and the stab tube balsa supports, using the poly-u glue.
Once this cures, it will be sanded flush, and then I can take a picture for you all to see.
It was a fun time.
I am preparing the stabs for the hard point, that goes on the front end of the stab. This will be for an anti-rotation pin. With the airplane level, you drill from the opposite side, into the stab root, and set the incidence. On this airplane, this will be set to 0.0 degrees.
1st step, insert the stab on one side, and from the other side, use a heated up drill bit tip that is long, and only enter the foam by 1 cm or so. This will give you an idea of where the hard point needs to be.
I am using a wood dowel, about 2 cm deep.
Then, burn the foam into a depression, such that, the wood dowel can be glued into this area.
I proceeded to glue the hard points, as well as the stab tube phenolics and the stab tube balsa supports, using the poly-u glue.
Once this cures, it will be sanded flush, and then I can take a picture for you all to see.
here is an image of the fuselage tail:
there is an opening for the stab tube. That phenolic has been glued in place with Hysol epoxy, and we used the donuts.
There is an opening on both sides for the two rudder servos.
There is an opening for the elevator wires, which is the long hole, and the small hole is for the anti-rotation pin, and to set the incidence on the stabs.
the opening for the servo wires going to the elevators, has to be opened to this extent, to allow me to do several things:
1. to be able to install the T-nuts for the stab installation area. As will be demonstrated next. the Stab root cap will have two tabs, each one with a drilled hole. Once the stabs are slid on, the two screws will fix the stab to the fuselage.
2. to be able to pass the servo wires for the rudder and stab.
there is an opening for the stab tube. That phenolic has been glued in place with Hysol epoxy, and we used the donuts.
There is an opening on both sides for the two rudder servos.
There is an opening for the elevator wires, which is the long hole, and the small hole is for the anti-rotation pin, and to set the incidence on the stabs.
the opening for the servo wires going to the elevators, has to be opened to this extent, to allow me to do several things:
1. to be able to install the T-nuts for the stab installation area. As will be demonstrated next. the Stab root cap will have two tabs, each one with a drilled hole. Once the stabs are slid on, the two screws will fix the stab to the fuselage.
2. to be able to pass the servo wires for the rudder and stab.
Just manufactured these. The stab root caps:
these will be glued on 1st (to the stab foam root), then sanded flush with the foam. After this step, the stabs will be sheeted. I prefer this method, as the balsa sheeting will capture the root caps, and further increase the strength against pull out.
these will be glued on 1st (to the stab foam root), then sanded flush with the foam. After this step, the stabs will be sheeted. I prefer this method, as the balsa sheeting will capture the root caps, and further increase the strength against pull out.
I was very happy with the stab gluing so far.
Proceeded to glue on the left stab root cap.
testing the fit between the root cap and the foam stab.
another view
prepping the foam for the glue:
Here it is, the left stab is on. There is a bag on the top of the foam, with a 2000 gram weight on each side, pushing the foam down onto the root cap. The poly -u glue is placed between the foam and the root cap.
Between the root cap and the fuselage, there is a clear plastic barrier, to prevent any glue from inadvertently getting onto the fuselage skins.
tomorrow morning, I will remove the set up, sand the root cap flush with the foam, and then do the right side.
After the right side is done, I will be ready to sheet the stabs.
Looking forward to using the new system for me. (vacuum bagging). (wish me luck)
Proceeded to glue on the left stab root cap.
testing the fit between the root cap and the foam stab.
another view
prepping the foam for the glue:
Here it is, the left stab is on. There is a bag on the top of the foam, with a 2000 gram weight on each side, pushing the foam down onto the root cap. The poly -u glue is placed between the foam and the root cap.
Between the root cap and the fuselage, there is a clear plastic barrier, to prevent any glue from inadvertently getting onto the fuselage skins.
tomorrow morning, I will remove the set up, sand the root cap flush with the foam, and then do the right side.
After the right side is done, I will be ready to sheet the stabs.
Looking forward to using the new system for me. (vacuum bagging). (wish me luck)