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This is the Backbird SR71, and...
it is ready to fly
...
Hello everyone, my name is Tri, and
today I will show you one of the best paper airplanes I've ever designed
the Blackbird SR71
this plane flies very well, but it is not easy to fold
so if you want to make it
be patient and follow my instruction step-by-step
Alright, lets start now!
To make the Blackbird, you need a printing paper
I am using letter size 8.5 x 11 inches
if you want to use a .. A4 paper, you can try it out.
but if it doesn't work. You need to
trim it down the the letter size
and also, you need a ruler
and a pen
or pencil. Ok, lets start now.
First step, I will fold the paper in haft this way
...
[Music on]
Second step, I will start from this edge
fold it to this edge.
and I repeat the same step for the other size
I start from this edge, I will fold it to this edge.
...
make sure that all the edges are lined up.
Turn the paper over.
Alright, start from this corner fold it to
the intersection of this crease and this edge, and also
on this corner, we fold it the intersection of this crease and this edge.
...
Alright, I open the paper. Turn it over
and I use my had to hold 2 sides of the paper
just pushed this crease to the center crease.
just push this part down.
'right
Next step, open this layer.
Put it to a side. Start from this edge, I fold it to the
center crease, but before I fold it, I will use a ruler [ to measure]
'K, I will start, will start from the tip here.
I will estimate [or measure]
about more than 1/2 in
about 3/4in
3/4 of an in OK! and then,
I will start from this point to
fold it the intersection ofcenter crease.
and this edge.
See what I am doing here?
I gonna make a line to show you how to fold it.
....
'K
I just fold it in.
...
estimate about 1./5 in from this corner.
along this edge.
1/2 in
and then, I will estimate about
1
one inch in and a haft
from this point, the intersection of this edge and this edge.
You don't need to use the ruler, but I just
just use the ruler to show you how I estimate it.
'OK, so
1.5 in
'K, now I make the line
This is what I have [ so far]
okay, Now I just fold
this part out.
use that crease and this line a preference
...
...
and then, I just fold the paper like this
Turn the paper over.
Fold this part out. Alright!
Then, I fold this part down, K. See what I have here.
fold it down. Now,
make sure that the
the crease here will match with this crease
Also, it is important that you fold it slowly.
...
Then, I fold this part out and use this edge as reference.
...
open this it is what we have so far
me turn the paper over it
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