Tuesday, 3 September 2013

The E Schwing is born!

Just beautiful,retaining much the same lines as the glider version  
It's finally a reality! We have 2 prototype E Schwings to build up and test fly and to say I'm excited is a huge understatement. The design is capable of being an outright hotliner with the option for anything between 3s and 6s and I'll be building both versions at around 900w and 2kw+. Of course this is just to demonstrate a hot set up for these size batteries and I've no doubt the Schwing will tootle around on much less. However, we've done a lot of motor testing already and the best power/efficiency/weight is with a 4s set up.
Right from the start it was designed as high power electric so it has a removable nose cone- much stronger than a canopy with a big opening! The functional shape is flattened and widened just enough to take the power system.

The nose cone has a cooling air intake moulded in on the top. The battery extension forms a strong platform to carry the lipos. The lay up is glass and has come out very strong.

It was sized for Thunder Power 3s 70c 2250mah which is the biggest that will fit in this format.

A 6s set up is just 2 x 3s packs joined in series. (Of course this also means 4s systems will have no problems as a 2s +2s). Here's a very special 6s version of the Sloperacr Motor using a lower wind (2040Kv) and upgraded gearbox, Reisenauer Micro Edition Plus. I'm expecting well over 2Kw!   

And here is the baby set up using a 5:1 geared outrunner (4300Kv). Tests with an Aeronaut 14x12 gave 950w static (using TP 2250, 3s, 70c and CC Edge Lite 100a)! It's very light as the motor and g/b weighes just over 100g! Basically, anything 28mm diameter will fit but nothing much bigger. The front hole is sized 32mm diameter.  

The bottom of the battery extension has a mould chine for strength but also forms a nice channel for the ESC wiring to the RX.   

Views of engorged rear fuse. The lay up is glass kevlar and carbon reinforcement behind the battery area and all the way up the fin. The area just behind the rear incidence pin is big enough for Rx and rudder servo and elevator (if not putting in fin).
Here is the air exit slot 

The nose is long enough for decent size props. Here is a long skinny RFM 16x16 and a 32mm spinner

It's still very sleek and skinny and retains the sleek lines of the glider version- just a bit more to grab now which is no bad thing launching!  

So much power in such a small space, well at least it's been designed for the capability!  

Same wing and tail spacing making the glider and E fuse interchangeable

Just got to build up and fly them!

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