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Posted by Owen_bern | Oct 08, 2021 @ 10:08 PM | 20,654 Views
this is a continuation of my threads.
Current projects:
1) EDF VTOL with a mig project 33 lookalike skin.
You can see traces of the Mig 29 in its ancestry.

The project 33 eventually formed the basis for the Chinese -Pakistan JF-17

2) Combi-copter.
Most gears, bearings, and shafts are on hand.
I can start putting the mitre gears on the rotor main shafts.
- this has Kaman-stlye intermeshing twin rotors, and 6 swash servos.- They are yet to arrive.

3) slingshot canard glider.

I have been working on this today.

I am filling, sanding, and undercoating it to give a fairly smooth top coat.

It will be heavy, but I can launch it quickly with the slingshot.
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Here are a few images of the EDF VTOL project, some previously posted.
<edit>

My 90mm edfs seem to be a bit under-motored.
Looking at the Het Typhoon 650-68-1600, but that is
$231 nzd before freight. ($165 US)
Anything cheaper??
this is 2000w, 90A, 282-300g motor weight.

This would give about 2300 gf (2324 to 2383, ChangeSun 90mm spec from eCalc)
<edit>
The 1450KV motors on my 90mm EDFs should still make about 2000gf at 70 amps.
They claim 85 A, so pitch may be greater than usual??

I need to finish my thrust testing rig, and check.

I have ordered a spare 90mm unit less motor -cheap- and a Tenshock motor- not so cheap.

I have a 70mm EDF on order, but this may only make about 1000gf.
- A bit low if the other two 90s are low as...Continue Reading