Just a quick post of my Bixler v1.1 build and some mods I`ve done in the last weeks! The main goal was to fit in an APM 2.5 and a MinimOSD / Telemetry as well as the GPS, the FPV gear and all the standart RC gear "inside" the plane in an attempt to make this plane more aerodynamic. I didn`t see this setup so far, so I thought somebody might find it useful / has any suggestions.
The camera, the 5.8gHz TX and the MinimOSD are protected under the cockpit casing, which I have sprayed from the inside and attached with black tape on the canopy. The openings of the camera and the TX outlet allow enough air to pass trough, but make the hole cockpit area much more aerodynamical! (The TX could be mounted further down, but then there is no access to the channel switches anymore...).
The cockpit is secured using a 5x9x 60mm pice of wood glued on the cockpit and a rubber band around the fuselage.
The APM is mounted upside down between the two foam horns under the cockpit. I used some more rubber bands and some double sided tape.* See this post for additional informations: http://www.diydrones.com/profiles/blogs/mounting-an-apm-on-a-bixler...
The Servo cables and the Power wire is coming from the back of the plane along the battery all the way to the nose (30cm extension wires) and around the front of the plane. Almost everything is attached to this bunch of wires, the RC RX, the power filter etc. This way the cables stay where they belong, and the cockpit can be removed (to change the battery without worrying about the APM to much) and all the wires and attachments could still be easily taken out for repair/inspection/modification etc.
For the GPS (as soon as it arrives) I will cut a space just 5-8cm from the nose in the styro, insert the GPS and cover the section with tape.
Last but not least, the Radio module is stuffed way back besides the servos and behind the battery.
* I use "Plastik 70" on almost every board I own, http://www.conrad.at/ce/de/product/814169/CRC-Kontakt-Chemie-207436... for isolation and general protection. COVER THE BARO BEFORE SPRAYING!