Big electric variable pitch prop.

JustPlaneChris · **Posted:** Tue Aug 04, 2015 5:53 am

That is so darn sweet! Can't wait to see how the flight testing goes (and sounds!)

exfokkerflyer · **Joined:** Thu Aug 16, 2012 12:08 am **Posts:** 294

That was COOL.

Sent from my iPhone using Tapatalk

Cat1 · **Posted:** Tue Aug 04, 2015 10:24 pm

Hey all... Time for an update.

Got a little shop time tonite and listened to the latest podcast. Thank you Chris and Bobby for the kind words. Good to have you both back and your words on the show about this project are encouraging.

A little head scratching went on as to how to mount all this into an airplane easily. After a few more hairs fell out I came up with this plan. The servo and pitch arm will mount to the back of a new (slightly bigger) x mount. The whole power system will become one unit with a mounting point mid ship. The servo and mechanism will pass through a 2" hole in the firewall and the x mount will fasten to 4 mounting points just outside this opening. This should make attachment and maintenance easy as it comes out as a single unit and all the mechanism is in your hand.

Got around to getting the spinner cut out for the blade grips. 2 1/2" spinner fits over the hub.

Just have to build the new x mount now and it should be on the nose of a plane.

Chris.

Borneoben · **Posted:** Wed Aug 05, 2015 7:28 am

That is looking very very nice!!

Im sure you could easily sell that as a kit it looks very professional.

Cat1 · **Posted:** Thu Aug 06, 2015 10:09 pm

Thanks Ben. Not my best work as I'm in a bit of a rush to get this in the air now after the promising testing.

Bit of play time tonite produced a mount and tied it all together. Here is a pic of the completed unit and the new x mount

The whole unit slides through a 2" hole(with a small key way for clearance ) in the firewall and will be fastened with 4 bolts with blind nuts.

And it fits!!!!!

Weight and balance is good and it looks awesome with that huge blade up front.

One mod to do. Not much prop ground clearance. Longer gear on the way.

Stay tuned. This might get exciting!!!!!

Chris

Borneoben · **Posted:** Fri Aug 07, 2015 8:13 am

Awesome!

Looking forward to see this one fly!

Cat1 · **Posted:** Sat Aug 08, 2015 11:02 pm

A little teaser. Getting closer. Just have to mount the battery and receiver.

Chris

http://youtu.be/5NFAQOqWDjg

exfokkerflyer · **Joined:** Thu Aug 16, 2012 12:08 am **Posts:** 294

Very cool! I can think of a lot of fun things to try with that set up!

:thumbup:

Cat1 · **Posted:** Sun Aug 09, 2015 7:40 pm

Quick report. Maiden done. It's awesome fellas!!!! Will post video highlights later!!!!

Enterprise · **Joined:** Wed Feb 29, 2012 4:09 am **Posts:** 65

Very cool project. I flew SF340s for the start of my career and beta mode is the coolest thing about that plane. I could see putting this on a air show type plane and recreating the turbo raven. Take advantage of the constant speed and get it to haul. There is a video of the full scale turbo raven doing it's routine and another of its crash on YouTube somewhere.

Big electric variable pitch prop.

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