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A new fuselage for my Depron Super Cub
- Quorneng
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So a completely new fuselage and at the same time to take the opportunity to check and re install all the electrics.
Only the wings, tail remain and undercarriage.
The new fuselage under way.
A true monocoque construction so far all built from 2mm Depron, even the rather unusual 'tube' motor mount.
The Emax 2805 motor is screwed to a 'printed' bulkhead glued inside the tube.
The motor tube will be glued in between the first two fuselage bulkheads.
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- Quorneng
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In effect the motor is suspended off the back of the thick (relatively!) Depron nose block, which is by far the strongest 'bulkhead' in the entire fuselage. The nose block thus transmits the thrust and torque of the motor into the fuselage skin.
The motor tube also extends back to the first true bulkhead to give horizontal and vertical stiffness to the motor mount. In this way, apart from the 'printed disk' motor mount which itself is a hollow matrix structure and is only 2mm bigger in diameter than the motor bell, the entire fuselage is just Depron.
In hindsight I could have printed the bulkhead to incorporate the 'drum' motor mount as well and saved a few more grams.
Perhaps next time!
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- boz
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- Quorneng
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As with virtually all my 'scale' Depron builds there is no covering just the Depron surface with a bit of sanding, lightweight filling and a thin coat or two of acrylic paint.
Apart from following a true scale shape how it flies is more important to me than how it looks. I don't do glossy finishes!
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- Quorneng
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- Quorneng
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Originally it had the elevator servo right in the tail and its rudder linked directly to the ailerons with pull/pull cables.
It all worked well enough however for the rebuild I will use a pull/pull cables for both the elevator and rudder with individual servos mounted much further forward. This should result in the battery also ending up on or very close to the CofG so any size/weight could be used, 800mAh for indoors, 3000mAh for endurance!
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- Quorneng
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Despite their chunky size each complete wheel weighs only 2.5g.
Rudder servo next.
Edit - pictures still not loading!
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- Quorneng
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edit:
Still no pictures.
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- Quorneng
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I have pictures of each stage of the build but........
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- one tenor
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Anything will fly given enough power
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- Quorneng
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Its a 30mm ID diameter Depron tube over a 28mm diam outrunner bell.
Still no pictures
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- johnpcalex@gmail.com
Anything will fly given enough power
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- Quorneng
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The battery will be moved forward - there is plenty of room.
I will also change the rx from 35 meg to 2.4 so I can programme in some rudder with the ailerons which is actually what it had before but then the rudder as mechanically linked to the ailerons.
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- Quorneng
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- Eric
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if you are calm and collected when all about you are going berserk - you've missed something important!
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