Edge for design
In a few interesting conversations with a USA advisor to the team it became clear that indeed this sort of compact humming man craft can be interesting as a commercial product if it has good range or flight duration. With gas turbine generators we can do the job if such turbines would have a fuel to electricity efficiency of ca 10 %. Will see below in this blog surprises. Next, it was also advised that such product has to be of attractive modern design: eg TESLA broke with all the so ugly duck designs of electric cars, and this might well be the reason of its popularity. So our craft should have features of a futuristic design that could once tested, become a neat shape for the next series. We think that a glider cockpit idea or resemblance might be the direction to go?
We would not mind to have feedback on this issue by you as readers. Do you agree with this idea of making a neat shape of craft (like the one with bended tubes), or should be have a minimum design?
Micro turbine generators
Last blog we reported on the AMT Jet turbines visit, and as a reaction to the blog we were referred to another gas turbine producer. Jakadofsky company which has a turbo generator design with 10 kW power output. (http://www.jakadofsky.com/index1.php?bereichID=11&lang=en). Interesting to see. The system is estimated to be giving approx.8 times the energy per kg of weight as standard LIPO batteries.
This week with Barry the aim was to make some connectors as well as test the sample. However he got a nasty flue, but is restoring now!
Propellants furthering for airbag parachute
A TNO (www.TNO.nl) expert hinted us to the use of gas generators, that produce a hand warm gas from solid propellants. This sort of systems is used in many applications and there are different solids and compositions for the applications. We will investigate further to see if this could lead us to develop the air bag parachute test.
Flight control systems
Thursday we visited the NAVKA is a group of the University of Applied Sciences in Karlsruhe that is involved in high end navigation systems that have many features interesting for our craft: dynamic weight shift compensation, all sorts of rotor configurations, etc.. (http://www.navka.de/). Interesting to know that they also worked on the E-volo system. We had very interesting discussions and plan to work together. Volocopter VC200 (Image: e-volo)
Team discussion plan A and B
We as a team plan to have a small discussion on the next years planning: one of the discussion points is which direction we will take after the tests of the belt drive and contra rotation propeller set ups.