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Old 08-23-2010, 09:42 PM
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phantomuav
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Join Date: Aug 2010
Location: Nelson, NEW ZEALAND
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Default Help with designing a big bird?

Hello community!

As a school project we are building a UAV for a competition.

Now, all UAV computers and stuff are all being custom built by myself and the team so need to talk about that.


What do we need to know when it comes to aircraft design?


The two engines planning on being used are two stroke 50.8cc with 5.8HP. A 23x8 prop is recommended by the shop.

The plane is going to be weighing <150kg at max take off weight at the competition. Preferably would like to take off at 200kg.

At the competition max winds are 15kts.

Proposed materials for manufacture were aluminium frame and a carbon fibre/fibreglass skin.

The design was going to be based on the P-61 twin boom style with area for external mounts for bombs and fuel tanks. this is critical.

The proposed airfoil is the NACA 4415. Lift coefficient of 1.4.


After the competition we are planning on using this with a Thermal imaging camera to Aid local Police forces in search and rescue missions.


What are the mathematical models for simulation etc?


If you require any more info please ask.

Thanks for reading this