Red Shift II RG from Arkansas [J&H Aerospace]

[Crawf56]

A dihedral guide comes with the model. I pinned it to the underside of a wing.

 

[Crawf56]

Wing pinned together for a moment. A lot of dihedral, with one wingtip up about 5-1/2" to 6".

 

[Crawf56]

Then I decided to re-check the Build Video Part 2, and I realized I had not worked on the ailerons. un-pin and cut.

 

[Crawf56]

Aileron shaping. [EDIT: Orientation is wrong! Should be slanted DOWNWARD.]

 

[Rktman]

Comparing sections of both wings. 'Lower' wing snapped at the aileron. Just needed a little CA.

View attachment 414899

Bandaid covering a hobby blade cut? (Badge of honor of a true craftsperson).

 

[Crawf56]

Bandaid covering a hobby blade cut? (Badge of honor of a true craftsperson).

Though I have had many hobby blade cuts, this particular bandaid is covering a booboo from a flathead screwdriver. Was trying to get to an airfilter on a Ford Explorer.

 

[Rktman]

Also the mark of the intrepid DIYer.

 

[Crawf56]

Back on the build. Realized I had trimmed the ailerons on the wrong side. Instead of being angled to the top of the wing, they should be angled to the bottom.

Fortunately......all I had to do was switch wing sides.

 

[Crawf56]

So the hinge covering is placed on the BOTTOM of the wing.

 

[Crawf56]

Time to put the wing together. Used CA, with some epoxy to feel gaps.

 

[Crawf56]

Adding control horns. Initially glued with CA, then added a little 5 minute epoxy.

 

[Crawf56]

The wing requires side supports on the fuselage. First, I sanded top & bottom of the fuselage to make sure they were flat.

 

[Crawf56]

Measuring the wing, I chose supports made from 1/8" thick balsa that were 3/16" tall.

 

[Crawf56]

More views of the wing supports.

 

[Crawf56]

Next, sanding the wing supports to get the wing level; and making sure the wing clears the rocket motor.

 

[Crawf56]

Glued the wing in place with 5 minute epoxy (actually, more like 7 or 8 minute). The wingtip height, as shown, was 4-1/4" from the table on both sides.

 

[Crawf56]

Starting to come together.

 

[Crawf56]

Gluing the tail assembly in place with 15 minute epoxy. Came up with a way to get the Elevator aligned with the Wings. We will see.

 

[Crawf56]

Here is a J&H Aerospace video of a Red Shift II rocket launch. Also contains some rocket glider build info.

 

[Rktman]

Really looking good!
Any concerns about wing charring? That motor pod sits awfully close to the wing and elevator surfaces.

 

[Crawf56]

Really looking good!
Any concerns about wing charring? That motor pod sits awfully close to the wing and elevator surfaces.

YES!!! I am concerned about wing charring/burning/glider-on-fire. In the "Fastest" video, J&H put aluminum foil on the wing and tail in the area of the rocket exhaust.

I emailed J&H, asking how they attached/glued the foil.

 

[Rktman]

Just a suggestion, but you could use aluminum duct tape, which is what I use and it really works great. Thicker than standard aluminum foil for cooking and it's self-adhesive. Available on Amazon: https://amzn.to/2SHodxo

 

[Crawf56]

Good suggestion.

 

[Crawf56]

Working on the motor mount. I decided to add an engine hook and a ring.

 

[Crawf56]

Time to throw some paint on my Red Shift. I plan to do my 'standard' scheme of white top & orange bottom. So I can find it in the air, and on the ground.

 

[Ez2cDave]

I just noticed the short Tail Moment this glider has . . .

 

[Crawf56]

Throwing some orange paint on the Red Shift II.

 

[Crawf56]

Let's add the pic.....

 

[Crawf56]

I just noticed the short Tail Moment this glider has . . .

In the Build Part 1 video, at the start, J&H shows the Red Shift I. It has a longer Tail Moment, and looks more like a conventional glider wing.

The shorter, wider wing may have required a short Tail Moment to adequately control the model.

 

[Ez2cDave]

In the Build Part 1 video, at the start, J&H shows the Red Shift I. It has a longer Tail Moment, and looks more like a conventional glider wing.

The shorter, wider wing may have required a short Tail Moment to adequately control the model.

Hmm . . . I'm hoping that Joshua Finn sees this thread and posts about this.