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Revolver Pusher type Autogyro trainer

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Chris Dowell21/05/2019 12:59:32
100 forum posts
47 photos

Went flying today .Nice pair

Chris...

Chris Dowell21/05/2019 13:01:03
100 forum posts
47 photos

Chris Dowell21/05/2019 13:02:44
100 forum posts
47 photos

This shows 35 gms of "church roof"

Chris Dowell21/05/2019 13:04:13
100 forum posts
47 photos

I took a couple of other model also...……...

Chris Dowell21/05/2019 13:07:21
100 forum posts
47 photos

And I had the whole field to myself!

Happy Landings

Chris...

Richard Harris21/05/2019 18:08:25
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2051 forum posts
1890 photos

What a setting Chris!

I have had a look at my prop and it's a 9 x 7.5" 3 blade, please ignore the 8x7.5" stated in a mag as it is an error.

If you want to go 2 blade then just add an inch and shave off the pitch slightly as per Steve and Chris's.

Rich

Big T21/05/2019 21:20:31
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215 forum posts
202 photos
Posted by Graham L on 21/05/2019 09:15:06:

Tim

1am using a 3530. 10 1400 kv motor on a 9x 6 APCe prop. Loads of power and reasonable run time as it is flying normally at around half power.

Graham

Hi Graham, what amps are you pulling? Or what Esc rate?

Graham L21/05/2019 23:50:48
30 forum posts
8 photos

Tim.

Using a 40 amp esc.. have not measured amp draw but motor and battery stay cool and I am easily getting 6.5 mins

Graham

Disciple of Autogyros22/05/2019 19:18:07
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25 forum posts
15 photos

Hi Rich,

With the battery pushed forward to the nose, I get a hang angle of 19 degrees (without church roof materials) . The CofG is marked together with the thrust line. Reading the article, it's best to have the thrust line as close as possible to, but above the C of G. The thrust line 23mm above the C of G. Is this ok?

I do have the option of lowering the motor (ergo the thrust line) by about 9 mm, any more than that and the 9 x 4.5 prop will strike the boom.

AUW is 1050 grams

Mike

img_20190522_185718.jpg

Edited By Disciple of Autogyros on 22/05/2019 19:21:28

Edited By Disciple of Autogyros on 22/05/2019 19:22:00

Edited By Disciple of Autogyros on 22/05/2019 19:22:58

Edited By Disciple of Autogyros on 22/05/2019 19:29:16

Richard Harris23/05/2019 09:38:11
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2051 forum posts
1890 photos

Mike,

You must be a light builder! 19 degrees hang is a good starting point as you will be able to move the battery back if you feel the need.

As long as you stick with the plan blades and tail surfaces a gap of 23mm should be OK between the thrust line and the vertical CG, I will check mine later on to give you a comparison, this was all considered at the design stage as I had these same questions with my RPG 10 years ago, some were flying with a 50mm gap with no issues.

As for lowering the motor I would leave it for now just in case you need to up your prop diameter as the other lads have.

Rich

Richard Harris24/05/2019 09:24:06
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2051 forum posts
1890 photos

Mike,

I checked my Revolver last night and my thrust line is between 23-25mm above the horizontal CG so yours will be absolutely fine.

For some reason the orientation of the photos is 90 degrees out, not sure what happened there!

20190523_174514.jpg

20190523_175031.jpg

20190523_175345.jpg

Rich

Disciple of Autogyros24/05/2019 14:13:49
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25 forum posts
15 photos

Hi Rich,

Outstanding. Thank you for going to the extra effort of measuring your model and supplying the photos. I'm happy now. Knowing my track record, I'll take some photos of the finished build and post,before the maiden flight on Sunday (weather permitting).

Thanks once again.

Mike

Richard Harris24/05/2019 17:27:30
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2051 forum posts
1890 photos

Mike,

Look forward to seeing your completed Revolver and good luck with the maiden.

Rich

Disciple of Autogyros28/05/2019 10:22:16
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25 forum posts
15 photos

Hi Rich,

The maiden didn't happen on Sunday, the wind was too strong and coming from all directions. My colour scheme is not as stylish or sophisticated as yours but at least I can make out its orientation!.

img_20190526_102513.jpg

img_20190526_102654.jpg

img_20190526_102723.jpg

img_20190526_102758.jpg

To get the thrust line right I did have to move the motor quite far to the right.

img_20190526_102936.jpg

Richard Harris28/05/2019 21:53:26
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2051 forum posts
1890 photos

Mike,

Top job thumbs up

Your certainly not going to lose that in a hurry, looking at the long range forecast the wind is going to be with us all week and in to the weekend unfortunately.

Rich

Chris Dowell29/05/2019 05:02:35
100 forum posts
47 photos

I do like the colours and your build .

I have not seen that selection for many years .I remember that Peter O used it on his Minimum.

Happy Landings

Chris...

Trevor29/05/2019 08:23:26
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365 forum posts
52 photos

Rich, did you ever get round to testing the Panther blades on the Revolver? I'm seriously contemplating building the Revolver and, being a lazy so and so, not having to make another set of blades would probably swing the decision!

Trevor

Richard Harris29/05/2019 21:00:56
avatar
2051 forum posts
1890 photos

Trevor,

The larger Revolver flies with the Panther blades as does the RPG but I haven't yet tried them on the published version.

They are pretty much the same length but quite a bit wider.

We did test the Panther tri plate out but mine was the only one that would fly consistently which is why we switched to the double plate configuration Graham was flying with on pretty much all of his models.

 

Leave it with me as I have quite a number of panther blades used for testing the first time round.

 

Rich

Edited By Richard Harris on 29/05/2019 21:01:54

Edited By Richard Harris on 29/05/2019 21:02:36

Chris Dowell30/05/2019 03:26:01
100 forum posts
47 photos

Rich

I was thinking when I built this model that this would be the one to fly as a two blade. Over the years I have tried a Minimum,Mantis and Atom.....but to be honest they were all on the twitchy side and not as "comfortable "to fly.

SOOOOOOO I do hope you show us the "magic" two blade conversion for this model.

Happy Landings

Chris...

Basil30/05/2019 08:19:38
11 forum posts

Hi, I have returned to modelling after a long break, decided to make Revolver!!!!.

I have a problem in the selection of the rudder servo!!. There is limited room and the one I bought does not fit, to tall .

hacked things about, the only way is to mount from under the ply mount cutting away the 6mm balsa floor, I am not happy with this. Could you tell us which one you used, so I would be sure it fitted please. Also puzzled hoe you would get the push/pull lines in after closure!!!

Barry

PS Love the model I hope I can get it to fly Thanks

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