FF2017-Int-Racers: Laird Super Solution

[Aviator08]

My Entry will be the 1930 Laird Super Solution .




My Super Solution



Laird Super Solution Build Video

Tim

Updated Plans. Vrs. 2.1

 

[rockyboy]

Very nice looking plane - should stand out from the crowd!

 

[wilmracer]

Love this one! Can't wait to see what you come up with.

 

[Aviator08]

Planning Stages

Working on CAD drawings.

 

[Michael9865]

Nice choice. Subscribed

 

[HilldaFlyer]

can't wait to see this baby go!

 

[Aviator08]

Tail Assembled. A little heavier then I hoped for.... we shall see.

 

[AkimboGlueGuns]

Yeah, the double layered foam does tend to get heavier than you'd expect. I still like double layering the foam for aerodynamic and durability purposes, but if you need to move the CG forward, eliminating the second (usually not necessary) layer of foam in the tail does help.

Aside from that, The build looks promising. I was going to do the SS as I love biplanes, but Chief Oshkosh has the local history value, and I'm helping to restore the plane that Chief was converted into (Buster.)

 

[rockyboy]

My doubled up tail surfaces also surprised me with the weight - my next prototype is still going to have the doubled tail, but I'm planning to peel all the paper first and sparingly use white gorilla glue instead of hot glue to try and counter the weight gain.

 

[Aviator08]

Yeah, the double layered foam does tend to get heavier than you'd expect. I still like double layering the foam for aerodynamic and durability purposes, but if you need to move the CG forward, eliminating the second (usually not necessary) layer of foam in the tail does help.

I also added a "hidden" control arm and brace for the elevators that is way over-kill, but I know it works. It keeps things more streamlined.

Aside from that, The build looks promising. I was going to do the SS as I love biplanes, but Chief Oshkosh has the local history value, and I'm helping to restore the plane that Chief was converted into (Buster.)

That is really cool! You should post some photos on your build thread.

Tim

 

[Aviator08]

My doubled up tail surfaces also surprised me with the weight - my next prototype is still going to have the doubled tail, but I'm planning to peel all the paper first and sparingly use white gorilla glue instead of hot glue to try and counter the weight gain.

I did peal off the paper on the insides. If you get the chance, weigh it and let me know what the difference is.

Tim

 

[rockyboy]

I also added a "hidden" control arm and brace for the elevators that is way over-kill, but I know it works. It keeps things more streamlined.

Would love to see some close ups or more description on this - thanks!

 

[AkimboGlueGuns]

That is really cool! You should post some photos on your build thread.

I certainly will be. Hopefully I'll be able to work on the plans for a Beta build this weekend. I've been super busy with school and the Marching Band season, so I've not really got any work done on it.

 

[Tench745]

My doubled up tail surfaces also surprised me with the weight - my next prototype is still going to have the doubled tail, but I'm planning to peel all the paper first and sparingly use white gorilla glue instead of hot glue to try and counter the weight gain.

If you're willing to try/buy another adhesive, super77 works great for sticking two profiles together like this. Works on paper or bare foam.

 

[Aviator08]

Would love to see some close ups or more description on this - thanks!

Here is what I did.



Tim

 

[Aviator08]

If you're willing to try/buy another adhesive, super77 works great for sticking two profiles together like this. Works on paper or bare foam.

That's a good idea. I have found out that it has to be a light coat or it will melt the foam.

Tim

 

[rockyboy]

If you're willing to try/buy another adhesive, super77 works great for sticking two profiles together like this. Works on paper or bare foam.

Doh! I should have thought of that sooner - I use it to stick paper decals on foam already. Don't know where my head was.

 

[HilldaFlyer]

I did peal off the paper on the insides. If you get the chance, weigh it and let me know what the difference is.
Tim

In general, the paper weighs as much as the foam. Removing paper from both sides will reduce the weight by 50%, and 25% if only one side is removed.

I've found that two layers of foam with all paper removed and bonded with Gorilla Glue is a lot stronger than one layer of foam. The next time I glue two layers together, I'll weigh it so I know how much the Gorilla Glue adds. I use a playing card to smear the glue around and then squeegee off all excess from both surfaces and then align them glue side to glue side, press firmly weigh down and let cure.

 

[Aviator08]

Latest picture..... Keep in mind, this is in the creation stage, anything can change.

 

[Aviator08]

Version 1 of wing panel on left, Version 2 leading edge on right.




End view of version 1.



End view of version 2..... much better profile.



Now to make adjustments to the plans and reprint the wings.