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Hello everybody I'd like to show
how the hammerhead is done 3 mm and 6 mm depron is used to build
It is a duck type high-wing monoplane pushing motor
delta type steering
The battery is placed in a cockpit and hold on velcro strap 3 ch receiver
20A ESC that is a prototype
looks little bit dodgy inside but works great
I am just surprised this model is able to fly so nice
magnet lock plane cabin holds good and definitely good enough
I made an air circulation inlet at front stick 10 grams counterweight here
to balace with 1300mAh battery properly
I will unscrew a wing now being hold by two nylon screws
I was intending to make it p&p to be easy to transport
but never needed to dissasemble to transport
But thanks this I will show you how it looks inside
Two little screws. Lift it up and we can disconnect the servos
and that is a wing
The wing has two spars around the holes one of them leads
via all wing span have used two carbon pipes 5 and 6 mm diameter
The wing profile is kfm3 kline - fogleman
basically from 6 mm depron and next 3mm on top
it is very soft and has a washers underneath to keep standard profile kfm-3 3x6mm
empty spaces there the question is .. why ?
because this wing is lying on the tail the tail must be light
motor inlets parts here they are dummy ones
there is no air circulation in the wing yet
I'd like to show vertical stabilizers
they are bit long and outshoot the wing trailing
during inspection it is uncovered that stabilizer what should be finished here was uneffective
I wanted to mitigate a height of these stabilizers
to do that I had to lead them beyond a fuselage
underneath we can see "silhouette" missiles sticks by pylons
these missiles work as well as direction stabiliser
fuselage / motor inlets are culvert
this is a prototype and vary with plan at this bottom side
I was making it completely with no plan was drawing everything on depron sheets
I was cutting online matching all parts together
finally wasn't bad but later I had a problem
to make some design plan of it
little holes, oddity they are used to hold
not sure I will show it fuselage is pretty much wide
I am struggling to hold it like this hold it by finger ends
need to throw from hand somehow what is very difficult
so I made these holes to support and holding like these I throw after
inlets are made from 6 mm depron they are hard enough
the wing has pendant hooks what cause clamping of this
and the opening nicely suit to wing
the air goes to the motor by gondola and goes out by afterburner
gaps are here as well can see inside out
up till the motor cooling
I have got a prop-saver on the motor because it is lighter than standard hub
want to avoid additional tail weight as well
this part doesn't transcribe any tension tensions are transcribed by these parts
I will name it inner fuselage by plywood with wing fastening
canard setup kfm2 profile on front
6 mm depron mainly 3 mm depron step
carbon spar is glued here can't remember 1.5 or 2 mm
supporting canard because was too soft and teared off
during the test at the beginning when I was landing in the grass
we'v got lower angle of fuselage slope here smoothly goes more steepy
roughly here got a bend here
the wing has a depron strips glued itself where the motor gondola goes in
I will demonstrate now
I will attache screws
around the screws thin plywood is placed to be sure the screw won't make a hole
It is spackled smoothly
We'v got the wing already attached let see how it looks on the bottom
that is what I was talking about
I used strips to be able to slide fuselage inside nicely
as You see doesn't collect any tensions here
It is a fuselage decoration where the wing is attached
I place the battery on front as far I can I will not supply
That is a turnigy 1300mAh 30-40C battery
not sure I am right but think it was about 110 - 120 gram weight
gravity center is here just before the wing
I will try to hold the wing now just here
at the end
and still the nose goes down
can try to check the balance like this
The center of gravity is approximately here
By and large that is all I wanted to say about this model.
If anyone wants to build next Hammerhead I am open to give more informations and recommend this model
cosmic and uncommon appearance
got a duck here bend anhedral wing
double stabilizer looks pretty attractive
my mate said It looks like ready to kick somebody
That's all guys Thank you if you last to the end with me
I hope this video will help you resolve any doubds
and find all answers to questions what bother you