Co-axial Fixed Wing Micro Air Vehicle

[mtrn]

Currently working on my thesis about a fixed wing MAV that will have hovering capabilities. I figured that there are number of software's such as ElectriCalc, Motocalc, Electric Drive Calc etc. New E-flite Blade mCX was very inspiring with its capabilities. My MAV probably will use the same approach. I need to modify and incorporate those data, equations into a matlab m file. If there is one you already know, that would be great . Actually I need some help from coders. Thanks I will post the results later. But the idea is to maximize the endurance and have capability to hover for a short duration( maybe land). Any idea / help highly appreciated. Thanx

[Velktron]

How about some inspiration from a successful (yet never popularized) classic?

http://en.wikipedia.org/wiki/Fairey_Rotodyne

This baby was optimized for fast forward flight, compared to a standard helicopter, yet it was able to perform controlled hovers and even position weights with accuracy.

The only problem lies in its autogyro design: it's a NOTAR (jet tips), and it has reversible pitch blades for forward flight and autorotation, something you can't really implement in a micro MAV. Using a coax rotor with cyclic control just for active lift during the whole flight phase might work, it depends how much lift you can offload to the fixed wings.

Also, try this for more ideas:

http://en.wikipedia.org/wiki/Compound_gyroplane

[mtrn]

Thanks for the links. Below you will see some of the works done before. Idea here is to maximize the endurance by taking advantage of forward flight as a fixed wing and when needed, it has to be able to transit to hover position and land (take off, transite to level flight and go home :) ). I sounds like different huh? Any way, New E flight mCX with coaxial rotors has very interesting flight characteristics as far as I've seen. It has ability to move forward, backward, left and right. It could also change heading while hovering by changing the torque but keeping the thrust same( ain't that cool for a 1 oz helo). But the problem is the battery and energy consumption(adds weight reduces time aloft). So the links you sent have some interesting ideas but from the point of view of less weight, long endurance, complexity definitely has some issues. Thanks for the interest

check this video
http://www.horizonhobby.com/Articles/Article.aspx?ArticleID=1816

1-A Multimodal Micro Air Vehicle for Autonomous Flight in
Near-Earth Environments by green @ http://idea.library.drexel.edu/bitstream/1860/1764/1/Green_William.pdf, has some ideas

2-DEVELOPMENT OF A MINIATURE VTOL TAIL-SITTER
UNMANNED AERIAL VEHICLE by Hogge @ http://contentdm.lib.byu.edu/ETD/image/etd2372.pdf