Just another experimental prototype.
 

7,8,9,10,11 and 12S test bed, today flying it on cheap 8S set up to check it up.
https://youtu.be/Z1y1f3MemM0

Now fitted with the new 90mm multi blade 'SM' power unit on 8S. What a difference in sound, enjoy.
https://youtu.be/9KPrbfMlTGQ
https://youtu.be/d0kD_5ylSBE

Beach flying action in perfect conditions for your enjoyment.
https://youtu.be/LUHicE6T4cE

After few 8S upgrades I got stuck with FW90mm EDF units, as an experiment I fitted one to this PROTO running for the first time on 6S only, with huge 9Ah lipo, same AUW as my original 12S power system but only much slower tho flight time twice as long.
https://youtu.be/AvPbOsMCfgg

Latest flight with new Stumax power unit
<iframe width="560" height="315" src="https://www.youtube.com/embed/5teVkdIHCR8" frameborder="0" allowfullscreen></iframe>

Latest beach action with SM89/8S set up.

https://cimg7.ibsrv.net/gimg/www.rcu...ecd1c92b4c.jpg

Last action before changing my power plant.
After flying it on 8S and its huge current draw I'm going back to 6S to make most of my large collection of 6S packs. This is just about perfect model for it.

Just another beach day, this time with the "Freewing - 90mm" 6S set up, short test flight. https://cimg7.ibsrv.net/gimg/www.rcu...24fd9a8e36.jpg

Back to 6S.
https://cimg8.ibsrv.net/gimg/www.rcu...f8f683614e.jpg

Nose up flare into the wind landing.

https://cimg5.ibsrv.net/gimg/www.rcu...58032f8418.jpg

Just few of the power plants this Prototype was running on over the years.
https://cimg6.ibsrv.net/gimg/www.rcu...3bcf487d11.jpg

Now fitted with the 8S set up, L. after the last 6S unit on R. New 3D printed bell rings.
https://cimg7.ibsrv.net/gimg/www.rcu...32ca20687c.jpg

With the new thrust tube.
https://cimg1.ibsrv.net/gimg/www.rcu...5a866c353b.jpg

ESC reprogramming to suit new power system.
https://cimg3.ibsrv.net/gimg/www.rcu...96850da134.jpg

First day out.
https://cimg1.ibsrv.net/gimg/www.rcu...355a35754b.jpg

Perfect flare.
https://cimg3.ibsrv.net/gimg/www.rcu...5b4472a7b5.jpg

In action.
Another change over after getting hands on this full metal 90mm power unit, running on 8S, sounds pretty nice, enjoy.

https://cimg8.ibsrv.net/gimg/www.rcu...afceffd973.jpg

Couple of Protos after the flying action.
Second day out action with my newly "Mercury" powered Prototype, sounds rather nice, just as quiet as my "Delta/Proto" with "SM89" running slightly hotter on 10S.

(Mercury)
(SM Delta)

Down wind take offs from the harsh surface air strip with both protos.
(Mercury D/wind)
(SM Delta D/wind T-off)

Greets from down here, flying off beaches is magic, tho, the tides are not always in your favor so I constantly watch out for 'lows", today flying model helicopter for a change that doesn't need much flying space.
How's the snow? Still got some? I used to ski in resort not far away from you. Cheers.

https://cimg5.ibsrv.net/gimg/www.rcu...1a34cdc923.jpg

Greets.
Having some magic weather down here, light breeze with nice low tides, making most of it while it holds.https://cimg1.ibsrv.net/gimg/www.rcu...8f9fc8896e.jpg

"Black Widow silueta"
https://cimg3.ibsrv.net/gimg/www.rcu...69364369b2.jpg

Zooooming along.

https://cimg3.ibsrv.net/gimg/www.rcu...a1122c21ec.jpg
Another fun with the Proto at the field with some Joeys.

Another exiting day at the flying field with my "Proto", first flight all good, (vid. att.) next flight had close encounter with the "roo" while taking off, unfortunately it hopped the wrong way putting its foot right through the wing of my jet.
Back on the work bench to do some repair, also requiring some art work paint job.
(Mercury Proto in CHC)https://cimg3.ibsrv.net/gimg/www.rcu...6d35c84387.jpg
https://cimg0.ibsrv.net/gimg/www.rcu...9a581c64cb.jpg

Could have been lot worse, it was a 5&1/2 footer!

https://cimg3.ibsrv.net/gimg/www.rcu...6d35c84387.jpg
https://cimg0.ibsrv.net/gimg/www.rcu...9a581c64cb.jpg

Could have been lot worse, it was a 5&1/2 footer!

https://cimg3.ibsrv.net/gimg/www.rcu...58e2658361.jpg

Easy fix, bit of art work next.
Back on the bench to fix the "kangaroo paw" foot print.

https://cimg4.ibsrv.net/gimg/www.rcu...344fb75565.jpg

Bit of art work in progress.
After all these years of action I have fixed few dints in the foam, decided to repaint the whole model with the new coat .

https://cimg6.ibsrv.net/gimg/www.rcu...04a78247a4.jpg

Under the new coat of paint.
https://cimg9.ibsrv.net/gimg/www.rcu...d0b49e5fee.jpg

Back in action.
Back in service again after the wildlife impact, model is fully repainted top&bottom with the damage hardly visable. (Proto re-borne)

https://cimg0.ibsrv.net/gimg/www.rcu...fa4318ec19.jpg

Today's selection.
https://cimg1.ibsrv.net/gimg/www.rcu...a384278e26.jpg

Doing some milage.
Sticky hot day for September today in low 30s, running in brand new high-C, 8S packs.

"Mayday-Mayday-Mayday", lost power!
https://cimg7.ibsrv.net/gimg/www.rcu...4c1992b994.jpg
Emergency beach landing after loss of power.
https://cimg4.ibsrv.net/gimg/www.rcu...4767acbfaa.jpg
Doom and gloom day, loss of power shortly after take off!

Mayday-Mayday, loss of power, need clearance to land. Doom and gloom day, wet and windy, soon after take off full loss of power with 90mm/8S Mercury unit, nt sure if it's the ESC or the power plant, needs thorough check on the bench.

After close inspection, there is some signal issue with the 180A/ESC, judging by the light signals after power hook up but no audible 'beep' sound. Might have to send it back to China for a service after their lock down ends.
In the mean time I'm replacing it with smaller 160A CC unit.

Replacement of faulty speedy, ready for a check test run.
https://cimg7.ibsrv.net/gimg/www.rcu...38ca105c1e.jpg

Now fitted with CC160, peak th. at 3.9kg after quick check on 8S/4.25/A-Specs.
https://cimg7.ibsrv.net/gimg/www.rcu...8aa1cfd426.jpg