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Revolver Pusher type Autogyro trainer

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Basil30/05/2019 08:33:48
11 forum posts

Hi, sorry but I forgot to say that I tried a Tower pro SG92R that's 14mm min from the ply support to the top of the arm.barry

Big T30/05/2019 10:12:25
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216 forum posts
202 photos
Posted by B YELLOP on 30/05/2019 08:33:48:

Hi, sorry but I forgot to say that I tried a Tower pro SG92R that's 14mm min from the ply support to the top of the arm.barry

If its any use, I used a HiTech 83mg. I also didnt like the idea of burying the servo (and misread the plan LOL) so I have mine with the control arm sticking out and the pull pull wires held in tension with a clip I designed on Fusion 360 and printed up. If I was building again I might consider putting in 2 tubes as guides as per the RH Gemini or even a lightweight wire pushrod as the Depron is rather fragile and mine has cracked around the horn in transit.

Richard Harris30/05/2019 14:38:06
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2054 forum posts
1892 photos

Barry,

Welcome to the forum.

To answer your question the servo I have used for my rudder is a 9g turnigy TG9 unit. It has clearance between the hatch bottom and the top of the control arm. Letting the bottom of your servo into the the 6mm base former will be fine, I have done this on a few models with no adverse effects.

As for connecting it up, mount the servo first and tie up the lines to the servo arm ( not fitted). Mount the servo arm and run the wires through the clearance holes in the fuselage bottom. Connect and tie up the other ends of the lines to the rudder horn making sure they are tight, then tie. You can keep the rudder straight whilst doing this with a couple of balsa scraps and some clothes pegs. You can add drops cyano to each not to hold fast.

It's also worth noting to keep throws in proportion it's best to keep the lines parallel with each other so match up your holes in the rudder control rod to to match the servo arm.

Hope this makes sense? A few photos that may help.

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Steve Jones 230/05/2019 17:23:15
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505 forum posts
373 photos

Corona 238mg servos on my rudders. Tall servo so 6mm centre former reduced in thickness to suit. No servo hatch cover on mine too covered with just the covering

steve

Richard Harris01/06/2019 16:05:39
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2054 forum posts
1892 photos

Trevor,

I successfully flew the Revolver on the Panther blades today, I will upload the video in the next day or two along with the set up.

Rich

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Trevor01/06/2019 19:57:53
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379 forum posts
52 photos

Thanks Rich, most encouraging smiley

Richard Harris02/06/2019 12:00:12
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2054 forum posts
1892 photos

So, the blades were removed off the Panther Tri plate and bolted directly onto the Revolver double plate (I had to open the mounting holes to 5mm). As the blades are slightly wider and have no negative shims I increased the hang angle by fitting a Turnigy Nano Tech 2650mah 3s Lipo, raised the motor and fitted a 10 x 7 aeronout prop.

With blades mounted on to the Panther they are naturally presented to the oncoming air with a good angle of attack with its feet sat on the ground, this isn't so with a pusher so there was quite a long takeoff run. Once airborne there were no trim changes and the model felt lightly loaded. The air however was quite bumpy around the crop edge with thermals coming through constantly.

With the extra lift it didn't penetrate into wind as good as the 'original' set of blades, that said, with shims fitted I am sure it will match them.

I had 5 flights in all and came away pretty please, when I get chance I will try adding shims and see if it improves things further.

Two thumbs up from me for anyone wanting to use a set of Panther blades for this model.

A bit of video footage I managed to grab.

Rich

Chris Dowell03/06/2019 02:44:03
100 forum posts
47 photos

Just like a bought one..............yeswink

Trevor03/06/2019 09:04:01
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379 forum posts
52 photos

Thanks again Rich. That's put the Revolver up to the top of my 'probable next build' list. I'll no doubt be back with more queries once it's underway. Don't hold your breath though. . .

Trevor

Steve Jones 205/06/2019 16:40:45
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505 forum posts
373 photos

So, here is my Revolvers little brother - Rich Harris fantastic model revolver 2.

Blue foam carved Stig on board..cheeky

Blades nearly finished for a 2 blade set up. Going to enjoy this one.winkwink

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Edited By Steve Jones 2 on 05/06/2019 16:41:58

Chris Dowell06/06/2019 00:32:13
100 forum posts
47 photos

Nice ONE Steve...I mean TWO...smiley

Chris...

Richard Harris06/06/2019 09:25:45
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2054 forum posts
1892 photos

That's a bit posh Steve thumbs up

 

Looking forward to a video when it is all sorted? I hear there is a Suzuki version nearing completion too, looks like you are setting a trend!

 

Rich

Edited By Richard Harris on 06/06/2019 09:37:33

Steve Jones 206/06/2019 20:35:12
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505 forum posts
373 photos

Thanks Rich and appreciate the comments. A great design of model needs to catch the eye. Yes I think there could be some more motorsport ones .. Gents start your engines !’

Maiden done tonight and goes well on 3 blades. A circuit too on 2 blades but kept my thumbs busy !!! A little more tuning required to dial that one in I think

steve

Basil07/06/2019 09:01:35
11 forum posts

Hi, the article says prop is 8x7.5. It is illustrated as 3 blades. On this site I have seen many pictures/vids that are 2 bladed!. What is the size recommended for the D3530/14 motor and how many blades please. Being a returnee I have a lot to learn.

Regarding the balancing of the main rotor blades.

You recommend using Balsaloc , I assume this is to add weight in the right place!!. What else can be used as my local model shop has indicated that this type of product is not widely used. What type of product is acceptable for same purpose, assuming it will be covered at some point? As is glaringly obvious I have every thing  to learn about modern covering  types and techniques so please bare with me.

So many questions, sorry to be such a pain .

Barry

Edited By B YELLOP on 07/06/2019 09:05:43

Richard Harris07/06/2019 15:14:08
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2054 forum posts
1892 photos

Barry,

The 8x7.5 " prop was a typo error in the magazine, it should be a 9x7.5" 3 blade prop. Rule of thumb when using a like for like 2 blade prop is to go 1" in diameter and a little less on the pitch, in our case something like a 10x6" 2 blade prop.

As for BalsaLoc it is still readily available HERE and is used to weight the blade to aid balancing. Though I have never tried I have heard that PVA can be used as a replacement for BalsaLoc?

What is worth noting that you have to over compensate the application as it does get lighter once dry.

I also know a few gyronuts that use epoxy in the same way smeared in the right area to good effect.

Rich

Steve Jones 207/06/2019 20:27:16
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505 forum posts
373 photos

My 2 models are fitted with 10x6e props as I could not get the 3 blade ones. This moves the motor up but it seems to work as both fly well.

As for the blades and balsaloc I use it during balancing as it works. I have also used pva .Don’t think it matters how you balance the blades as long as you achieve it

steve

Edited By Steve Jones 2 on 07/06/2019 20:30:47

anthony kay 107/06/2019 22:38:25
1 forum posts

Hi just started gathering all the bits to have a go at this machine need some help on how to set up the radio ,I use spektrum DX8 on mode 1 if any can help please

Steve Jones 208/06/2019 08:08:48
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505 forum posts
373 photos

I use Spektrum too mode 1.

2 head servos are set up as a delta model by Wing type eleven.. mixes 2 together for pitch and roll.. make sure you use good metal geared servos not nylon geared ones. If model tips over on take off and landing then with blades there is enough energy to strip nylon geared servos

Rich and I fly mode1 so when your ready to test, if not too far maybe help is at hand.

Chris Dowell08/06/2019 10:05:13
100 forum posts
47 photos

Is there a problem with the video clips on this site ?...or it could just simply be me … because I only black boxes.

Chris...

Richard Harris08/06/2019 22:07:06
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2054 forum posts
1892 photos
Posted by Chris Dowell on 08/06/2019 10:05:13:

Is there a problem with the video clips on this site ?...or it could just simply be me … because I only black boxes.

Chris...

Chris,

Everything is good this side of the globe.

Rich

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