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HomeScaleAircraftScale HeliScale Helicopter Main Discussion Docs  YAHOO...BIG R22
04-27-2013 06:02 AM  5 years agoPost 1
Mojave

rrElite Veteran

Palos Verdes, Ca. USA

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I bought this Vario R22 kit and mechs from Peter Rob a while back. Finally got home from work travel and decided to start building it. It's going to be converted to e-power and FBL. Peter was kind enough to save me some time and chuck the head block in his lathe and remove the flybar ears. I'll be running a custom wound Xera 240kv motor (with clutch), Jive80HV esc and 12s lipo. I haven't decided on the final gear ratio yet, but plan to run 900rpm HS. I have 3 BLS351 servos for the cyclic, but haven't decided what tail servo to run. I'll be using a Vbar blue unit and 2 sats.

This thing is a monster! Check out the size of the head. I held it in my hand for a size comparison. The grips are 22mm! The heli is 72" long and 29" tall at the head. I don't know what the AUW will be, but would guess 30ish lbs with the lipos on board.

I also haven't decided if I'll mount the motor in the stock location, or move it aft between the frames. Anyway, here are some pics of my progress so far. I'm sure the Mods will eventually move this to the docs section. I just wanted to "set the hook" first
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-27-2013 02:53 PM  5 years agoPost 2
Notar

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Taxachussetts

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You are going to love that heli Barry. Mine is one of my all time favorites to fly. It just goes where you point it. We also have aluminum blades for that heli as well.
Joe

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04-27-2013 05:54 PM  5 years agoPost 3
Mojave

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Palos Verdes, Ca. USA

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Hi Joe, yeah I have heard nothing but good reviews about the way this heli flies. If you had the choice, would you mod the side frames and move the motor back, or leave it in the nose? What tail servo do you recommend for this heli, with vbar? Also, are the aluminum blades AMA approved?
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-27-2013 07:57 PM  5 years agoPost 4
PETER ROB

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Devon UK

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Aluminum blades
Barry, Those Vario blades I sent you will do everything you want
I was throwing around,another R22 at Charmouth last weekend, even with that strong breeze, absolutely no problems
The owner will probably make a comment
Never tried metal blades, never had the need for them on an R22
If you can borrow a set, would be interested in a comparison
Peter R

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04-27-2013 08:58 PM  5 years agoPost 5
Mojave

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Palos Verdes, Ca. USA

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Hi Peter, I'm not questioning the performance of the vario blades, just curious if the aluminum blades have been approved for use by the AMA. I may want to use them on another project down the road.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-27-2013 09:36 PM  5 years agoPost 6
PETER ROB

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Devon UK

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Missunderstanding
Barry, sorry got it wrong, just Joe said he had blades for the R22
We in the UK have to register metal blades, but at the moment only M blades have been allowed, Modtron was telling me that some other metal blade producer are submitting test results
If they are successful it may lead to cheaper blades
But the powers to be are very slow in coming to any desisions
Peter R

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04-27-2013 11:01 PM  5 years agoPost 7
doorman

rrProfessor

Sherwood, Arkansas

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AMA Approved? ?
Hi Barry,
Glad to hear you made home so you can get into that BIG BOY heli!! I know you are going to really enjoy flying it..
Hard to believe it will make your 800 size heli's look like 600 size!!!
To answer your question about the metal blades being approved by the AMA is yes.
Peter Wales took the time and effort to get them approved for scale heli's.
I am pretty sure that you have to register and keep a log with them though, but I am not certain of the actual requirements ...
Looking forward to seeing you 22 I'm the air soon!!

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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04-27-2013 11:20 PM  5 years agoPost 8
Notar

rrKey Veteran

Taxachussetts

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The R22 meets the guidelines for aluminum blades. You will see that they are more efficient than the glass blades. They seem to fly a little 'crisper' than the glass as well.
As for the side frames, leave them the way they are, put the electric motor out front, and the batteries behind the motor on the side frames.
Joe

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04-28-2013 12:20 AM  5 years agoPost 9
Mojave

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Palos Verdes, Ca. USA

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Stan: Yup, glad to be home after 2 months on work travel. I'll hopefully maiden this R22 in the next month or so.

Joe: Thanks for the info. I guess it's a lot easier just leaving the motor up front. It needs forward ballast anyway. I was just thinking that I could clean up the cockpit for some detailing, but it really doesn't matter.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-28-2013 08:57 AM  5 years agoPost 10
PETER ROB

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Devon UK

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Clean up the cockpit for some detailing
Barry, The downside,with the Vario R22, is the glazing is still tinted
The new mid engine mechanics, and the electric conversions, free off the cockpit area, leaving ample space for detailing, shame would be you would not see it
I have an industrial thermal vac forming machine,but every time I think about forming new clear glazing, for the R22, the machines are sold
There is another kit in the storage hangar, maybe for this model?
Peter R

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04-28-2013 03:54 PM  5 years agoPost 11
Mojave

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Palos Verdes, Ca. USA

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Peter, agreed. With the tinted glazing there's really nothing to see. If I ever get the itch to change it, I'll swap out the side frames and hit you up for some clear glazing...
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-28-2013 05:39 PM  5 years agoPost 12
PETER ROB

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Devon UK

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Clear glazing
Barry, have been looking in the storage hangar for a second hand replacement front glazing panel for an R22, lucky I found one from another R22 that had broken the opposite panel
In the process I looked at the new in box R22, because the cabin is uncut, it would not be that difficult to take a mould of both the front glazing sections, then produce a plug for the Vac forming, just time consuming and messy with the plaster plug
I will give it some more consideration, there may be others looking for the clear glazing
The new turbine's arrive tomorrow so I need to be on the 135
Peter R

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04-28-2013 10:07 PM  5 years agoPost 13
Mojave

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Palos Verdes, Ca. USA

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I figured out the gearing combo for this beast.

29 tooth primary pinion
77 tooth primary gear

20 tooth secondary pinion
70 tooth secondary gear

Equals 9.31:1 final drive ratio

With my 240KV Xera on 12S governed to 90% for esc head room, it nets me a 913rpm head speed. Now all I need to do is get a clutch with the 29 tooth gear and I'm all set. I have a 29 tooth gear if I feel like playing around without the clutch.

Peter, sounds like you have everything you need to make the clear glazing set. Maybe it would be a fun winter project...
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-28-2013 11:09 PM  5 years agoPost 14
PETER ROB

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Devon UK

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it would be a fun winter project...
Barry, All my time is taken up with heli projects, I must be having a fun time, all the time
If you use a vario/Zenoah clutch, with the gearing that you got with your R22 all you would need to do is match your electric motor, to the Zenoah gasser motor output, just a thought, as I know nothing about electrifying heli's
Peter R

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04-29-2013 12:31 AM  5 years agoPost 15
Mojave

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Palos Verdes, Ca. USA

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Yeah, but then my $350 Xera motor will just be lonely on the shelf and I'll have to replace it with something else... I'll find out tomorrow what clutch gear ratio's are available, as that is a much cheaper option.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-29-2013 04:21 AM  5 years agoPost 16
dave35495rrApprentice - canada - My Posts: All  Forum  Topic







For those who are interested in the R22, I have just completed one and has also been on a test flight. I'd like to share my ideas.
I'm running AXI 5330/18 269kv with 15s lipo with all the original vario stock gearing with peter wales set up. esc i use kontronic power jazz 63 with efficiency of 70%. I fly just normal mode. This is the first generation R22 mechanic and I have to cut the bottom side frame, took about 10 minutes and I also had to custom make my own motor plate and drill four holes in the vario bottom plate to hold the motor in place. (Please refer to the picture)I also have to get the new belt. The reason I don't like the motor up front is because the original belt is too long, and I prefer the motor in the middle, It looks more balanced, to me anyways. and for FBL i use sk360, i am very surprised that the sk360 was just plug and play, i have not noticed one bit of difference between original flybar, matter of fact it is way better than orginal flybar flying, love it. And as usual, I have used sk360 in all my benzin and this is the biggest scale bird I have used. Not sure why most people in the forum don't like them. It flies like a dream with no adjustments what-so-ever. Matter of fact, when I test fly it, the only thing i have changed is reversing the tail servo and the rest is hands on nose in hover. Beautiful machine. The vario FBL head is a bit complicated to set up and I have a friend named Sandy that has helped me all the way, what a guy, if you are reading it. As for the original scale blade, I dont find any reason to replace it with aluminium, especially because I love scale and I like to see the white blade with yellow trim, just like the full size R22. Well I hope this helps for anyone who is interested.

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04-29-2013 05:12 AM  5 years agoPost 17
Mojave

rrElite Veteran

Palos Verdes, Ca. USA

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Very nice set up Dave! Those AXI motors kick a$$ I used to run them in all my giant scale planes. What pinion are you running? What PN belt are you using with the motor moved back?
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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04-29-2013 05:55 AM  5 years agoPost 18
dave35495

rrApprentice

canada

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Barry i am running all vario original gear and pulley and pinion nonthing change ,basically just cut the side frame and make my own motor mount and stick the AXI motor in.i prefer the axi motor because it run very smooth and very very quiet when spool up .

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04-29-2013 07:14 AM  5 years agoPost 19
gonzalom

rrVeteran

Northern California

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Barry, very nice! I cant wait to see the new heli in action at HSM 2013!

Gonzalo

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04-29-2013 07:18 AM  5 years agoPost 20
Double Decks

rrApprentice

Poole Dorset

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The owner will probably make a comment
Hi Mojave, yes Peter did fly my Heli Air R22 at charmouth after he spent 5 min setting up my throttle curve and mixture settings, my god never seen her fly like that before throwing her around the sky like it was a nitro. You will get good advice from Peter, good luck with your R22 She looks amazing.

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