Wright Brothers "Flyer" 1903

RDN1954 said:
At is simplest:
View attachment 470781,
Where F is the applied force, L is the length, or span, E is the mode of elasticity and I is the moment of inertia. Have fun! :cool:
Click to expand...
Occasionally during my career, I had to calculate the dead load deflection of certain size steel beams holding a uniform load of poured in place concrete for a bent cap. I was never real comfortable doing it and always had my boss check my work though, it was his company. Here is a cable stayed pedestrian bridge I did all the layout on and all the field engineering during its construction. This was one of my favorite projects and out of hundreds of bridges I worked on during my career the only cable stayed one.

IMG_0337.jpgIMG_0913.jpg

The biggest challenge here was correctly placing the dead eyes at the top of the towers, angle critical to say the least, I designed and built a wood template out of 2x4's and 3/4" plywood that fit into the custom-built metal forms to hold the eyes in place. Another one of those potential career ending opportunities.
I hope this does not come off as bragging, I do like sharing this kind of thing with the right people.
 
Daniel20 said:
Occasionally during my career, I had to calculate the dead load deflection of certain size steel beams holding a uniform load of poured in place concrete for a bent cap. I was never real comfortable doing it and always had my boss check my work though, it was his company. Here is a cable stayed pedestrian bridge I did all the layout on and all the field engineering during its construction. This was one of my favorite projects and out of hundreds of bridges I worked on during my career the only cable stayed one.

View attachment 470794View attachment 470795

The biggest challenge here was correctly placing the dead eyes at the top of the towers, angle critical to say the least, I designed and built a wood template out of 2x4's and 3/4" plywood that fit into the custom-built metal forms to hold the eyes in place. Another one of those potential career ending opportunities.
I hope this does not come off as bragging, I do like sharing this kind of thing with the right people.
Click to expand...
What a beautiful design! Must have been built with oil money ROTF.
 
Daniel20 said:
Occasionally during my career, I had to calculate the dead load deflection of certain size steel beams holding a uniform load of poured in place concrete for a bent cap. I was never real comfortable doing it and always had my boss check my work though, it was his company. Here is a cable stayed pedestrian bridge I did all the layout on and all the field engineering during its construction. This was one of my favorite projects and out of hundreds of bridges I worked on during my career the only cable stayed one.

View attachment 470794View attachment 470795

The biggest challenge here was correctly placing the dead eyes at the top of the towers, angle critical to say the least, I designed and built a wood template out of 2x4's and 3/4" plywood that fit into the custom-built metal forms to hold the eyes in place. Another one of those potential career ending opportunities.
I hope this does not come off as bragging, I do like sharing this kind of thing with the right people.
Click to expand...
No bragging at all, Daniel. It’s very interesting stuff. Math and formulas: I love it.
A beautiful bridge with modern rigging.
Regards, Peter
 
Daniel20 said:
:oops: Anybody want to bet on whether or not these wings snap back to a straight profile once released from the jig?
Click to expand...
My two cents, by adding the struts and strut wires you're creating a number of parallelograms, where the diagonal brace wires are not of equal length. The wires under tension should keep the anhedral, within certain limits, think elasticity.
 
Daniel20 said:
Occasionally during my career, I had to calculate the dead load deflection of certain size steel beams holding a uniform load of poured in place concrete for a bent cap. I was never real comfortable doing it and always had my boss check my work though, it was his company. Here is a cable stayed pedestrian bridge I did all the layout on and all the field engineering during its construction. This was one of my favorite projects and out of hundreds of bridges I worked on during my career the only cable stayed one.

View attachment 470794View attachment 470795

The biggest challenge here was correctly placing the dead eyes at the top of the towers, angle critical to say the least, I designed and built a wood template out of 2x4's and 3/4" plywood that fit into the custom-built metal forms to hold the eyes in place. Another one of those potential career ending opportunities.
I hope this does not come off as bragging, I do like sharing this kind of thing with the right people.
Click to expand...
Beautiful suspension bridge. Those deadeyes are indeed stuff for nightmares, not having your math right is having a very bad day.
Still, bragging rights granted!
 
Today I visited the Aviodrome in relation to my research for information on my little Kolibrie project.
While there, I stumbled upon a replica of the Wright Flyer (where the pilot is sitting upright, instead of in the prone position).
Here a few pics of the replica:

IMG_2538.jpeg

IMG_2527.jpeg
 
RDN1954 said:
Today I visited the Aviodrome in relation to my research for information on my little Kolibrie project.
While there, I stumbled upon a replica of the Wright Flyer (where the pilot is sitting upright, instead of in the prone position).
Here a few pics of the replica:

View attachment 471620

View attachment 471621
Click to expand...
From what I have read there were 3 versions of the Flyer. In the third revision after they had ironed out quite a few problems they were able to change the controls to accommodate a sitting pilot and a passenger. This must be a replica of the 3rd version. It would seem during the first two versions laying down was their effort to reduce drag.
 
Good Friday morning all. I have been making slow but steady progress on various areas of the Flyer. After lashing all 36 loop ends to the 18 struts using black rope I discovered the real plane used light tan lashing. So, this is my first official do over (in progress) with tan lashing.IMG_0344.jpgIMG_0363.jpg

Next are the lower wing pilot accommodations of a footrest/brace. The wig warping cradle that the pilot shifts left and right with his hips for rolling the plane left/right, (fore runner of the ailerons), and the engine control lever and radiator support.

IMG_0347.jpgIMG_0349.jpgIMG_0350.jpgIMG_0352.jpgIMG_0357.jpg

Here I have begun engine assembly with painting and preparation of the propeller support system. This pot metal is so soft, almost lead like you can easily deform it with your fingers, this has its advantages and disadvantages. Per the plans I drilled 4ea 0.7mm ok 0,7mm holes in the feet of the crank case for mounting into the engine support rails. The engine is heavy enough that just CA probably would not be strong enough. Dry Docks 0.6mm nails work perfect with this. Once I set it in place I just drill further into the frame then glue it all down.

IMG_0358.jpgIMG_0360.jpgIMG_0361.jpg

This last photo has a picture of the actual engine and is a great help along with the instructions during assembly. I'm hoping to dry brush the 4 ignition heads to look like the picture.

IMG_0362.jpg
I am so fortunate the CA glue works well on the fabric and into the wood underneath.

Thats it for now, till next time have a great time!
 
Daniel20 said:
Good Friday morning all. I have been making slow but steady progress on various areas of the Flyer. After lashing all 36 loop ends to the 18 struts using black rope I discovered the real plane used light tan lashing. So, this is my first official do over (in progress) with tan lashing.View attachment 472037View attachment 472038

Next are the lower wing pilot accommodations of a footrest/brace. The wig warping cradle that the pilot shifts left and right with his hips for rolling the plane left/right, (fore runner of the ailerons), and the engine control lever and radiator support.

View attachment 472039View attachment 472040View attachment 472041View attachment 472042View attachment 472043

Here I have begun engine assembly with painting and preparation of the propeller support system. This pot metal is so soft, almost lead like you can easily deform it with your fingers, this has its advantages and disadvantages. Per the plans I drilled 4ea 0.7mm ok 0,7mm holes in the feet of the crank case for mounting into the engine support rails. The engine is heavy enough that just CA probably would not be strong enough. Dry Docks 0.6mm nails work perfect with this. Once I set it in place I just drill further into the frame then glue it all down.

View attachment 472046View attachment 472047View attachment 472048

This last photo has a picture of the actual engine and is a great help along with the instructions during assembly. I'm hoping to dry brush the 4 ignition heads to look like the picture.

View attachment 472049
I am so fortunate the CA glue works well on the fabric and into the wood underneath.

Thats it for now, till next time have a great time!
Click to expand...
Great details Daniel! I love it!
 
Daniel20 said:
Good Friday morning all. I have been making slow but steady progress on various areas of the Flyer. After lashing all 36 loop ends to the 18 struts using black rope I discovered the real plane used light tan lashing. So, this is my first official do over (in progress) with tan lashing.View attachment 472037View attachment 472038

Next are the lower wing pilot accommodations of a footrest/brace. The wig warping cradle that the pilot shifts left and right with his hips for rolling the plane left/right, (fore runner of the ailerons), and the engine control lever and radiator support.

View attachment 472039View attachment 472040View attachment 472041View attachment 472042View attachment 472043

Here I have begun engine assembly with painting and preparation of the propeller support system. This pot metal is so soft, almost lead like you can easily deform it with your fingers, this has its advantages and disadvantages. Per the plans I drilled 4ea 0.7mm ok 0,7mm holes in the feet of the crank case for mounting into the engine support rails. The engine is heavy enough that just CA probably would not be strong enough. Dry Docks 0.6mm nails work perfect with this. Once I set it in place I just drill further into the frame then glue it all down.

View attachment 472046View attachment 472047View attachment 472048

This last photo has a picture of the actual engine and is a great help along with the instructions during assembly. I'm hoping to dry brush the 4 ignition heads to look like the picture.

View attachment 472049
I am so fortunate the CA glue works well on the fabric and into the wood underneath.

Thats it for now, till next time have a great time!
Click to expand...
Nice pictures of the building process and the details, Daniel. It looks ‘complex in it’s simplicity’.
Regards, Peter
 
You must log in or register to reply here.
Back
Top