I shouldn't be doing this!

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27 Nov 2018 12:53 - 27 Nov 2018 12:54 #16 by old fart
Replied by old fart on topic I shouldn't be doing this!
:lol: :lol: :lol:

There is nothing like a dream to create the future.

Electrickery is the work of the devil.
Last edit: 27 Nov 2018 12:54 by old fart.

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  • Klipkopwildlife
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27 Nov 2018 13:07 #17 by Klipkopwildlife
Replied by Klipkopwildlife on topic I shouldn't be doing this!
That's the trouble with University educations it interferes with their common sense!

Do it now, you may never get another chance

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28 Nov 2018 23:56 #18 by Quorneng
Replied by Quorneng on topic I shouldn't be doing this!
Guess what. My daughter went to the closing down Homebase again and bought some more wall paper for her sitting room! So 3 hours this evening gone again with a bit more tomorrow. :( At least I got an evening meal out of it! :P
Managed to plank the rear top deck.

and fit the prop with its printed spinner.

Next to fit the elevators with their printed hinges.
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Thanks: Eric, Klipkopwildlife, THE BLACKBIRD

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30 Nov 2018 00:36 - 30 Nov 2018 00:38 #19 by Quorneng
Replied by Quorneng on topic I shouldn't be doing this!
Still only modest progress.
The elevators.

Far more complex than it need be as each elevator tapers from 10 mm thick at the root to 4 mm at the tip. As it will be flown bank and yank the elevator does not have to be 'cut back' for rudder clearance! ;)
The joining tube is 10 mm thin wall glass fibre with a bearing in the fin with simple printed hinges at each tip.
There are small balsa shrouds to reduce the gap.
The printed cockpit frame.

A bit Spitfire like! :P
It will have glass but permanently fixed so it will add to the structural rigidity.
Once the wing is fitted the battery can then be positioned.
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Last edit: 30 Nov 2018 00:38 by Quorneng.
Thanks: Klipkopwildlife, THE BLACKBIRD, Ralpharr2001

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01 Dec 2018 22:49 #20 by Quorneng
Replied by Quorneng on topic I shouldn't be doing this!
Battery compartment complete (it takes a 1500mAh 3s) and a light recoat of black acrylic.

Still to decide what to paint the tail.
Without the battery it weighs 234 g (8.25 oz) which should give it a slightly better power to weight ratio than the twin engined Skymaster the bits came from! :P
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Thanks: Klipkopwildlife, THE BLACKBIRD

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01 Dec 2018 23:35 - 01 Dec 2018 23:42 #21 by one tenor
Replied by one tenor on topic I shouldn't be doing this!
Why not leave it white. Some WW2 squadrons did have a seperate empennage colour. This denoted which flight they belonged to usually. As an afterthought it might help with orientation too.

Anything will fly given enough power
Last edit: 01 Dec 2018 23:42 by one tenor.

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04 Dec 2018 00:32 - 04 Dec 2018 00:34 #22 by Quorneng
Replied by Quorneng on topic I shouldn't be doing this!
Enventually chose to paint the tail red. Actually the same colour as the wing tips and the 'low vis' USAF markings that were carried over from the O-2 Skymaster.

The 'glassed' cockpit.

The printed spinner painted 'chrome' silver.

Just a latch for the battery hatch to do. The hatch has to be positively latched as it is the only thing stopping the battery falling out under negative g. :woohoo:
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Last edit: 04 Dec 2018 00:34 by Quorneng.
Thanks: Klipkopwildlife, THE BLACKBIRD

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04 Dec 2018 21:44 - 04 Dec 2018 21:45 #23 by Quorneng
Replied by Quorneng on topic I shouldn't be doing this!
Now ready for its maiden so here are its figures.
38" (970 mm) span. 9x6 prop and a 1500 mAh 3s.
It weighs 12.7 oz (364 g) ready to go.
The motor draws 16.5 A (169W) giving a substantial 212 W/lb, which is slightly higher than the Skymaster had available.
It has proportionally a bigger capacity battery (1500 against 2200 shared), only 1/3 the frontal area, rather better streamlining and a slightly lower wing loading.:woohoo:

We shall see. :P
Last edit: 04 Dec 2018 21:45 by Quorneng.
Thanks: Eric, THE BLACKBIRD

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05 Dec 2018 08:42 #24 by Eric
Replied by Eric on topic I shouldn't be doing this!
Not today, though - it's peeing down!

if you are calm and collected when all about you are going berserk - you've missed something important!

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