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Revolver Pusher type Autogyro trainer

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Richard Harris26/05/2020 15:58:39
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2196 forum posts
2034 photos

A little more footage taken yesterday of the Revolver 3, this time fitted with the standard 3 blades. Handled the blustery conditions really well and I prefered it to the 2 blade configuration, as confidence grew I did tighter close in turns. Looking forward to taking it out in calmer conditions later in the week all being well.

I will leave like this, however I am thinking that a larger version may be on the cards.

Chris Dowell27/05/2020 02:40:44
134 forum posts
52 photos

Rich...larger version?? did you not publish the larger version...??

Chris...

Trevor27/05/2020 08:17:47
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479 forum posts
60 photos

I flew my Revolver 2 again yesterday (standard version, none of this daring 'look, no tail' stuff!). I'm happy with the setup once it's airborne but the takeoffs are still hairy. The takeoff run seems to continue well beyond the point where the rotors are up to speed. Then, when it does unstick, it rears up sharply. So far it has survived unscathed (I think I push both sticks fully forwards) but it is rather alarming.

I'm wondering this is a technique failure on my part or whether there is a simple cause of this behaviour (too short a nosewheel perhaps?)

TIA

Trevor

Edited By Trevor on 27/05/2020 08:18:19

Chris Dowell27/05/2020 09:59:09
134 forum posts
52 photos

Trevor

This is usually a symptom of the main wheels being to far to the rear of the model. It stops the model from pivoting. I have had the same problem on several models. When the model finally does come unstuck .it can be found to jumps into the air almost vertically and can be a handful. I would suggest that you bend the U/C to get the wheels further forward.

Chris...

Richard Harris27/05/2020 11:55:12
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2196 forum posts
2034 photos

Trevor,

Could be your angle of attack when its on its wheels also, I prefer mine to be parallel or with the nose higher if at all possible. If its not quite right we tend to pull back on the rotors to which there is then a sudden pitch up, you will know when its right as the nose wheel will go light. If you watch my last video again you can just make out this before I commit to more power for the ROG.

Easiest way to achieve this would be to fit a larger diameter nose wheel or spread out the rear UC a touch?

Another reason could be that your thrust line is a tad high which may be keeping the nose wheel tight down until the lift overcomes this force.

Either way its always best to try one thing at a time, would be interested to hear how you get on?

Rich

Trevor27/05/2020 12:35:40
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479 forum posts
60 photos

Thankyou both. As you say Rich, a bigger nosewheel would be the simplest mod to try, so I’ll report back when I’ve had a chance to try that.

Steven Webb (Steve Webb Models)27/05/2020 18:10:37
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301 forum posts
103 photos
Posted by Richard Harris on 28/08/2019 21:08:32:

Talking of videos here is the small amount of footage I captured of your first flight with an autogyro including the landing.

Rich

Hi Richard and Gyro Guys

I really enjoyed this thread. I speed read in places, really enjoyed the video with (is it) David's first landing of his first Gyro flight. Such a super reaction to the flight. Its that 'first' landing feeling. It can't be beat. The first landing on the strip, the first with a Jet and the first indoors and so on. You just cant beat those feelings.

I haven't seen you for a while Rich, I'm at home shielding. I didn't get much flying ( indoor) before the lock down and so I am suffering withdrawal now. Have you still got that little Diesel engine? You know the one... the little Mills.

I just got myself a 050 Replica ED Racer from Alex Fin - Amazing.

Take Care

Steve

Richard Harris28/05/2020 09:45:58
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2196 forum posts
2034 photos

Hi Steve,

Good to hear your safe, I still have the Mills but it hasn't flown this year as yet, I need to build a new model for it really. Have not long bought a 030 redfin for an up coming project, looks to be well made.

Do yo still have the DAG?

Rich

Gene Graber09/08/2020 15:48:29
10 forum posts
2 photos

I'm building your Revolver II in the USA. I cannot find any source for the glass filled sheets (1.5. 0.8, and 0.4 mm). Can you provide any suppliers? Gene

Richard Harris09/08/2020 23:10:39
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2196 forum posts
2034 photos

Gene,

Have had chat with my friend over in the states and he uses Garolite G10 from McMaster- Carr HERE .

Coolwind sell a set of CNC cut FB parts HERE and will ship worldwide I believe.

Be sure to show us some photos of your Revolver when you get it done please?

Rich

Gene Graber10/08/2020 15:10:25
10 forum posts
2 photos

Rich: thanks for the info. I ordered what I needed from Coolwind. I will send photos when done - it will be a while as I just started two weeks ago. Gene

Gene Graber11/08/2020 18:13:32
10 forum posts
2 photos

Rich: I finally found your recommended servos online - had to buy from China. I cannot find the Turnigy motor you suggested anywhere. Which would be the better choice? E-flite Park 480 or E-flite Power 10? Both are heavier than the Turnigy. The Park 480 develops 275 watts, the Power 10 375 watts. Which would you recommend? Thanks. Gene

Richard Harris14/08/2020 22:06:33
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2196 forum posts
2034 photos

Gene,

Always better to have power to hand, I will check how many watts my motors are pulling for a comparison. Gut instinct is swaying towards the extra power of the Power 10, but that also depends on the KV?

Rich

Gene Graber15/08/2020 02:21:04
10 forum posts
2 photos

Power 10 has 1100 KV; Park 480 has 1020 KV. Thanks. Gene

Trevor15/08/2020 08:57:45
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479 forum posts
60 photos

I wouldn't drop below 1100kv unless you are confident you have a suitable 3-blade prop available - the normal option of increasing prop size if you need a bit more power is not really available to you with this configuration!

Trevor

**LINK**

Graham L15/08/2020 11:46:50
36 forum posts
8 photos

Hi Gene. I am using a dys 3530 10 1400 kv motor on a master 9x5 wood prop on my original beta built Revolver 2. Plenty of power and decent run time on a 2200 3s Lipo.

Graham

Graham L15/08/2020 13:08:47
36 forum posts
8 photos

Gene. Ps hobbyking stock the above motor under the Turnigy name.

Graham

Gene Graber15/08/2020 14:16:05
10 forum posts
2 photos

I've checked all the usual online sources and that motor is either on backorder or discontinued.

Gene

I'll go with the Power 10. The only negative is the added weight - +50 gms

Graham L15/08/2020 14:51:13
36 forum posts
8 photos

Ok Gene but just did a quick search using DYS 3530 14 1400 kv and they are available on eBay and Banggood. Sorry but my phone won’t let me post a link.

Graham

Piers Bowlan15/08/2020 15:30:26
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2168 forum posts
53 photos

This would appear to be the same from the HobbyKing EU warehouse.

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