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Old Oct 29, 2002, 07:44 AM
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Umeċ Sweden
Joined Nov 2001
167 Posts
my new camera plane

I built this plane as a stable platform to carry the pencam. It has a 1.3m polyhedral wing and v-tail. Made from correx, depron and aluminum tubes. For now it has a speed400 with gunther prop, but I have ordered a 2.33:1 gearbox and plan to run it with a bigger prop. Total weight is 580g without the camera...
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Old Oct 29, 2002, 07:46 AM
Registered User
Umeċ Sweden
Joined Nov 2001
167 Posts
the camera slides in the back and has two positions: either pointing sideways...
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Old Oct 29, 2002, 07:47 AM
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Umeċ Sweden
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...or pointing straight down:
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Old Oct 29, 2002, 08:09 AM
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BAR-STOOL's Avatar
Lakeville Minnesota USA
Joined Jul 2002
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Nice job and well done.
Roger
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Old Oct 29, 2002, 11:43 AM
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Minh Nguyen's Avatar
Torrington, CT. 06790, U.S.A.
Joined Feb 2002
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I like it. You did a good job.

Minh
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Old Oct 29, 2002, 11:45 AM
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Minh Nguyen's Avatar
Torrington, CT. 06790, U.S.A.
Joined Feb 2002
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Hello Coroplast,

Please post your new camera airplane. I like the style of your coroplast airplane. Good job!!!!!!!!!!

Minh
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Old Oct 30, 2002, 02:05 AM
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Umeċ Sweden
Joined Nov 2001
167 Posts
Quote:
Originally posted by Minh Nguyen
Hello Coroplast,

Please post your new camera airplane.
If you mean plans... sorry I don't have any. It was a bit of a seat-of-the-pants TLAR design.

But here's an in-flight picture:
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Old Oct 30, 2002, 02:06 AM
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Umeċ Sweden
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or another one..
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Old Oct 30, 2002, 06:09 AM
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GordonTarling's Avatar
UK, Greater London, Uxbridge
Joined Mar 2001
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Corosplat - you've shown us some nice pictures OF your new model, now how about showing us some pictures taken FROM your new model?
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Old Oct 31, 2002, 04:46 AM
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Umeċ Sweden
Joined Nov 2001
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OK, well my first mission wasn't so successful, but I posted the results in a new thread. I'm having trouble with daylight at the 64th parallel this time of year, but hopefully will get some better results soon,
Cheers,
/Steve
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Old Nov 15, 2002, 04:35 PM
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Flywellnz's Avatar
Wellington, New Zealand
Joined Jun 2002
66 Posts
Great plane!I am interested in some more details of your plane as it looks right and obviously flys very well.
Is the wing constructed from 2mm coreflute? and if so are they folded around a spar as per usual SPAD construction? i.e. no ribs?
Any other details will be much appreciated!
I love those snowy photos - beautiful!
Gordon (from way down here in Wellington, New Zealand - no snow but it is raining outside!
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Old Nov 16, 2002, 11:07 AM
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Umeċ Sweden
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OK here's some more details. The wing isn't really SPAD style but rather has a 2mm correx bottom with layers of depron stacked up to make a solid foam wing. It has no spar, just some strapping tape on the top and bottom. I've made a few wings like this and they turn out a little floppy but really tough

Dimensions:
wingspan 130cm (51 in.)
root chord 18cm (7 in.)
tip chord 10cm (4 in)
straight leading edge with forward taper just because it looks cool
fuse length 60cm (24 in) because that's how long my aluminum tubes were
v-tail (2mm correx) flat width 40 cm (16 in)
v-tail chord 20cm (8 in) gives a generous v-tail area ~30% of wing
v-tail angle as close to 110 degrees as I could get
weight 580g (20 oz.) with battery pack (8X600AE), without camera ready to fly

gear:
speed 400 6v w/ 4.9X4.3 (Gunther) prop, Kontronic Rondo speed control.
battery 8XKR600AE (5 minutes), or 8XN1000-3US (9-10 minutes)
two micro servos and 6-channel micro receiver

flight:
I was surprised it actually flies pretty well with the small prop on direct drive. It will actually take off from the snow as you can see in this video. The v-tail has plenty of control and it will loop without problems and even do an ugly roll if you have altitude and patience. It slows down real nice and will glide well with power off. No problem with the extra weight of the camera, in fact I think it flies better.
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Last edited by corosplat; Nov 16, 2002 at 11:17 AM.
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Old Nov 16, 2002, 11:11 AM
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Umeċ Sweden
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The original plan was to put a gearbox on it and fly it with a bigger propellor to get a slower top speed with more thrust for climbing. I tried a 2.33:1 gearbox with an 8X6 CAM SlimProp and it flew like crap . Makes me think the success of the first design was just luck afterall.

I think I have tpo put some decoratons on it. That sky-blue correx and cloud-grey depron makes pretty effective camoflage

Cheers,
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Last edited by corosplat; Nov 16, 2002 at 11:13 AM.
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