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Old Aug 19, 2011, 03:40 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Norm,

With the vertical planking on the center spar it is reasonably rigid - however, ref post #43, the aluminum tube is part of the final structure. I too was concerned about the camera hanging out there on a few balsa stringers. I have had a camera come through the bottom of the model on landing.

I am working on the camera mount now. I believe it will be strong enough. I'll post more detail soon.

Tom
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Old Aug 19, 2011, 05:02 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Something to consider is that there is no landing gear. The model will land on skids - one on the inboard side of the pod and one on the outboard side of the fuselage. So there is no large down-force on the pod during landing. Alternatively the model will land in a creosote bush, a mesquite tree or soft sand. Sand is the worst.

Tom
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Old Aug 19, 2011, 06:27 PM
Herk
HerkS's Avatar
Virginia USA
Joined Jun 2007
1,650 Posts
Quote:
Originally Posted by Tom Harper View Post
Alternatively the model will land in a creosote bush, a mesquite tree or soft sand. Sand is the worst.

Tom
Tom - I guess you should name it Road Runner - or maybe Coyote
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Old Aug 19, 2011, 06:51 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Creosote Cruiser?

Tom
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Old Aug 19, 2011, 07:04 PM
internet gadfly
nmasters's Avatar
Colorado
Joined Aug 2006
2,188 Posts
Well, if you're going to fly it into a mesquite tree, how about the thorn bird
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Old Aug 21, 2011, 11:27 AM
Promoting Model Aviation...
Murocflyer's Avatar
United States, OK, Henryetta
Joined Nov 2005
25,304 Posts
This looks very interesting. Nice work so far Tom.

Following along.

Frank
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Old Aug 21, 2011, 12:37 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Frank,

Go to hear from you.

The pod has slowed me down a bit. I'm installing hatches and the camera mount. Mostly went smooth until I got to the thin section near the TE. Had to lock it in a fixture so I could keep it square long enough to get the sheet covering on. Definitely have to add some plywood doublers to that area.

Tom
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Old Aug 21, 2011, 04:46 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Covered pod

Covered the pod with medium hard 1/16" balsa. The forward hatch cover is finished. Still have to do the center and rear hatch covers. The camera mount will be built into the forward hatch. The camera mounts upside down in the hatch cover. That's handy because it's all removable.

Tom
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Old Aug 24, 2011, 03:18 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Assembly

The frames are in for the middle and rear hatches - sheet cover later. There's room enough to get my fingers in there to turn the wing attachment nuts. That's the important part.

I believe I am well within my weight budget, but it's time to weigh what I have so far as a reality check.

I've started on the large (left) wing panel.

Tom
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Old Aug 26, 2011, 12:00 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Left wing framed

Finished framing the left wing panel. It's pretty delicate. I need to get the vertical web in the main spar, then I can sheet the LE to form the D tube.

The wing socket is tight but smooth and looks like it's going to work well.

Tom
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Old Sep 01, 2011, 02:27 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Some Progress

Installed the pitot tube plumbing, cut the aileron, installed the soda straw conduit for the servo wire and rolled sheet balsa around the LE.

Have to install the aileron servo and then do the cap strips.

Tom
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Old Sep 02, 2011, 02:38 PM
Promoting Model Aviation...
Murocflyer's Avatar
United States, OK, Henryetta
Joined Nov 2005
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Looking good Tom! Can the servo connector fit through that straw?

Frank
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Old Sep 02, 2011, 02:41 PM
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I think only the wires need to fit through the straw. probably I'd cut the servo wire to be much shorter, feed the long part through the straw, and then solder connectors where I made the cut. The servo can be easily replaced, the wire stays with the plane.
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Old Sep 02, 2011, 02:44 PM
Promoting Model Aviation...
Murocflyer's Avatar
United States, OK, Henryetta
Joined Nov 2005
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Makes sense. Silly me, I didn't think about cutting the servo wire.
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Old Sep 02, 2011, 08:18 PM
Lift is cheap - Drag sucks
Tom Harper's Avatar
Socorro, NM
Joined Jul 2004
3,661 Posts
Yep, that's the idea.

Question:

I'd like to use a little 9g servo for the aileron. With no linkage to drive it should be up to the task. What do you think?

Tom
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