I haven't done a rambling, over-engineered, ethyl alcohol infused build thread in quite a while.....

.....so......

.....I've laid out the kit contents of the recently introduced Semroc Scissor Wing Transport.

I even cleaned up my assembly bench for this! The parts look very nice and the crucial main glide wing is tight-grained and dead flat.

Should be fun.

TBC

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__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

Now for some technique (yes, already.)

the alignment of the dowel standoff is crucial, so as the adhesive of the parts stack sets I register it against my 1/2" angle aluminum.

TBC

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__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

KIT CORRECTION!!

In steps 1 and 2 of the instructions it states to make a pencil mark at 1/2" from one end of the ST-5 stuffer tube and then glue the TB-7 thrust blocks onto the end of the tube so that one block is registered to the end and the other is at the 1/2' mark. This would be OK if the thrust blacks were actually wound paper centering rings that would be approx. 3/16" long. But the thrust blocks included in the kit are actually laser cut from 3/32" plywood and therefore the space between the rings is not narrow enough for both thrust blocks to contact the inside of the engine mount tube when it stops at the engine hook forward bend.

I discovered this too late, and rather than remaking the stuffer tube assembly from my own parts I slit a CR 5/20 and glued it between the (2) thrust blocks. After the glue of the added CR set I epoxied the assembly into the front of the engine mount tube. Before the epoxy could set I used the 1/2" aluminum angle to draw parallel guide lines on the stuffer tube so as the epoxy hardened I can sight the squareness of the stuffer tube in relation to the engine mount tube.

After the stuffer tube is permanently mounted and aligned into the forward end of the engine mount tube (and registered against the forward bend of the engine hook) I enrobe the joint of the stuffer tube to the engine mount tube with epoxy.

TBC

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__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

Good save!

Thanks. I wish it hadn't been necessary.

TBC

__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

ST-5 Stuffer tube? This *is* different than the most recent Estes kit.

__________________
Paul
If we weren't all crazy, we would go insane - Jimmy Buffett
NAR #87246 www.wooshrocketry.org

Now I've mounted and aligned the fin assemblies and dowel/standoff assembly to the engine mount/stuffer tube assembly and I'll apply epoxy fillets as soon as the carpenter's glue has dried.

Note the Herculean thigh/knee assembly in the background. Not required for the build--just some eye candy. You're welcome.

TBC

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__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

I enjoyed the build I did as a kid in the 70's. It seemed like a technical accomplishment to me at the time compared to most kits. I flew it without doing any trimming and it glided great!

I did try a toss in the yard beforehand, but stopped when it cracked the wood where the stop pin/dowel was located.

__________________
I love sanding.

The epoxy of the rear stabilizer is set and the glider is beginning to take shape.

The pivot box for the main wing is next.

TBC

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__________________
Never trust an atom. They make up everything.

4 out of 3 people struggle with math.

Chemically, alcohol IS a solution.

NAR# 94042
SAM# 0078

Someone is reading the forum. My Scissor Wing came with a a package of 1/4" rings stapled to the kit bag to use in place of the kitted 1/8" rings.

__________________
Don
NAR 53455
"Carpe Diem"