3meter FT Shinden (will not use imperial units if possible :)

[The Hangar]

What resin are you getting?

 

[Ryan O.]

What resin are you getting?

Total Boat 2:1 epoxy

 

[Ryan O.]

So, something weird happened to the dremel while I was cutting. One second perfectly fine, the next second this:

 

[GrizWiz]

So, something weird happened to the dremel while I was cutting. One second perfectly fine, the next second this: View attachment 201370

Lol! that happened with my sanding bit! It does not make sense! I could barely bend it back.

 

[Ryan O.]

Foam board Kebabs anyone?

I am about half way through drilling my lightening holes in the formers.

 

[Ryan O.]

It turns out that the price of extra 4s 4000's to run the smaller motor on 4s would actually more or less equal the price of just getting a larger motor and running it off of my current 6s 4000 packs wired to make a 12s 8000. I decided to get the larger motor so that it can arrive with some time to spare before Flite Fest.

 

[Ryan O.]

the plywood for the wing spar sides has been ordered, and with the current wood prices the spar will become the third most expensive single part on the entire plane.

 

[Ryan O.]

The wood, servos, motor, and huge prop arrived today. Tomorrow I'll cut out the wood for the spars and motor mount, then start doing some tests over the weekend. While the spars a curing, I'll cut the foam board for the wings using the measurements from a fusion 360 sketch.
(multiplex shark for scale)

(motor and esc on the really thourough esc manual)

 

[Ryan O.]

I found a good solution for a takeoff dolly

it only needs minor modifications to be able to carry the shinden.

 

[Ryan O.]

I've got my motor mount and a spare cut, and after I finish cutting the spars I'll use any leftover wood as a reinforcement for the wing mount and motor mount.

since I won't be able to cut the other wood pieces until Monday, I will cut out all the foam board for the wings this weekend.

 

[Ryan O.]

All the connectors are soldered and I programmed the ESC (it orignally came set up for helis). I tested out the motor and it's running great, so nexts step is soldering my crazy wire extension to make a 12s 8000. I can't cut out the wing sections today because all my razorblades are dull 😅

 

[cyclone3350]

The wood, servos, motor, and huge prop arrived today. Tomorrow I'll cut out the wood for the spars and motor mount, then start doing some tests over the weekend. While the spars a curing, I'll cut the foam board for the wings using the measurements from a fusion 360 sketch.
(multiplex shark for scale)
View attachment 202410
(motor and esc on the really thourough esc manual) View attachment 202411

I have to ask. What is that glider U have there in the back ground?

 

[Ryan O.]

I have to ask. What is that glider U have there in the back ground?

It's a multiplex shark trainer which is similar to the T explorer or HK Bixler in shape. It normallt comes with just 1 motor, but I gave mine 3.

 

[Ryan O.]

Here's the plans for each spar type. They'll be cut out tomorrow, and all the parts should be glued in a few days (I don't have enough clamps to do them all at once).

I also made progress with the fuselage joiner system by gluing in both joiner boxes and installing one of many blind nuts which will be important in the future.

for the top skom of the wings, I plan to run a piece of pcking tape from the top TE all the way around the LE to the bottom TE in several locations to prevent this getting "stuka'd"

 

[Ryan O.]

Clamping started

this is the spar joiner with 1" poplar which will eventually be sandwiched between 3/16" plywood. This will be glued and might be fiberglassed (for extra strength) to the main wing spars. This might also be filled with expanding foam.

 

[Ryan O.]

The expanding foam worked perfectly. I had drilled some pressure relief/air holes which likely helped. I also drilled one test hole as far away from any air holes as possible, and underneath was solid foam, so it cured pretty well.

The box with all the excess foam torn off. I'll have to scrape the extra bits off too.

 

[Ryan O.]

I wanted to make sure I had all my numbers correct for Ecalc since I'm going to build in a hardpoint to the wing for ladder balancing soon, so I used a fusion model instead of a scaled up print out of the Shinden. The CG% I got was the same as on the little model shinden, so I'm pretty certain I have a good CG. Almost all of the dry mass of the plane is ahead of the cg, so hopefully all those batteries should balance it out.

 

[Ryan O.]

Fiberglassing going well so far.

 

[Quinnyperks]

The wood, servos, motor, and huge prop arrived today. Tomorrow I'll cut out the wood for the spars and motor mount, then start doing some tests over the weekend. While the spars a curing, I'll cut the foam board for the wings using the measurements from a fusion 360 sketch.
(multiplex shark for scale)
View attachment 202410
(motor and esc on the really thourough esc manual) View attachment 202411

Wait... is that the receiver you bought from me?

 

[Ryan O.]

Here's what the spar joining system will look like. I can glue about a spar segment and a half a day, but since I'm out of town this weekend they won't all be finshed until Tuesday.