FlightWorks has been working several years with developing aerial photography platforms for own use. Advanced aerospace materials and cutting edge manufacturing technique among Sweden's leading industrial facilities has been used with great success.
After several non revenue carbon fibre and aluminium projects, the choice of a high strength aluminum 7075-T6 FPVracer has been chosen for sale.
Some of the benefits using high strength Aluminum:
•Product price can be kept to a minimum in relation to achieved volumes, design strength and quality.
•Comon ground for all elctronics is available in the frame, as in automotive industry. This saves weight, avoids cable congestion without the need of a PCB, and making the construction simple to build and maintain.
•Thanks to the metal's isotropic properties, more advanced shape can be achieved compared to carbon fibre structures in relation to cost. Aluminium is equally strong in any direction, as supposed to CF, which is only strong pulled in its fibre direction. As an example of a problem arising with CF plates, is drilled or milled screw and bolt holes close to edges. These are easily skewed out when subjected to high forces - this is because only the glue/resin in the CF plate is actually helping to hold bolts and other fasteners in the carbon fibre plate's plane.
•Parts are easily repaired by bending, should a hard crash result in a deformed part.
•Arms can be made aerodynamically transparent for the propwash, creating improved thrust compared to a flat, rather wide carbon fibre arm.
•Superior cooling of attached components due to the excellent heat transfer propperties aluminium holds. This applies especially to motors running at high power.
Only real downside with aluminum is the weight compared to an equaly sized component in Carbon Fibre. Despite this, the benefits listed can be considered to even out that downside.
In the future, both carbon fibre, metal and 3D printed products will be available here.
Copyright Johan L. Nohrstedt 2020