Global Hawk Wings and fuselage joining problem

[linweikang]

Hi guys

I am currently building a scale down Global Hawk. It has a 5m WS and 2m L. I will have problems transporting this glider around so i decided to make the wings detachable from the fuselage. However, this may compromise the strength.

I have yet to think of how to hold the wings strong to the fuselage as much as dismantling the wings easily.

Carbon rods and tubes will be inserted in between the wings. This rc global hawk will be around 2kg of total weight. I will try not to use any metal material.

Any help?

[thunder1]

Nylon wing bolts should secure the wings well enough. As long as you have sufficient anti-rotation pins, or double CF spars, the stress on nylon bolts at the wing joints will not be much at all. How you set up the nylon bolts depends on how the wing is constructed.

[Sail-r]

Any pics?

Bryan

[hoysome]

I would love to see pics and get some build info from you,, I'm planning on building the exact same thing in a couple of months once I get my final design and materials.

[Thomas B]

Hi guys

I am currently building a scale down Global Hawk. It has a 5m WS and 2m L. I will have problems transporting this glider around so i decided to make the wings detachable from the fuselage. However, this may compromise the strength.

I have yet to think of how to hold the wings strong to the fuselage as much as dismantling the wings easily.

Carbon rods and tubes will be inserted in between the wings. This rc global hawk will be around 2kg of total weight. I will try not to use any metal material.

Any help?

since you are making a lightweight version of the model, you could likely use carbon rods and tubes to attach the wings, as mentioned before. Tubes in each wing panel, more carbon or alloy tubes or rods to join the wing inside the tubes.The joined panels would bolt onto the bottom of the fuse.

If your model is pretty scale, you will likely have a small center section fairing to deal with....it could stay with one of the wing halves, or it could be a seperate bolt on part.

At a span of 16.5 feet or so, Ipredict the flying weight will end up more than 4.4 lbs, especially if you are making an EDF model. Scale sailplanes with 5 meter spans typical weigh 14-20 lbs or even more.

Assuming you are making a foamie or a very, very lightly built balsa model, you might be able to bring it in at the 8-10 lb range, with VERY careful building and weigh budgeting.

[grenadapult]

Ok, I'm the new guy in town still building my first Blu Baby, so i can't offer any advice yet. however, I have GOT to see some pics of even PIECES of that thing. the global hawk is my favorite UAV, but it looked very difficult to build. I was thinking about progressing up to a Predator B some day. i'm not getting my planes mixed up am I?

[F-111Nut]

not sure if they help much but here are some pic's of a 1/2 Size Display i help to build a few years ago..