RunRyder - Just engineered a double maingear on my new swift 16.

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e-Century Hummingbird - Swift > Just engineered a double maingear on my new swift 16.

centuryman
Veteran
Location: deerriver,mn usa

I just finished installing a double maingear on my new swift 16. The guys at heliworld said it would'nt work.But with a lock collar off of one of my hawks,some longer screws, 4 custom spacers,and a 9 tooth long pinion from the swift 620 and it's done.That 1907 looks big in there . can't wait to try it out . On 8s it should rock.

04-12-2008 05:06 AM

aerton
Senior Heliman
Location: Longueuil, QC, Canada

I am curious to see a picture of it.
I just switched to stronger main gear on my 550 for 8S setup with 620 blades.

04-12-2008 05:25 AM

HOMEPAGE

centuryman
Veteran
Location: deerriver,mn usa

No pictures yet.
The main thing is it needs to be assembled in the heli.And the bottom locking collar will be inside the second maingear so the stock one won't work because the bolt will hit the main gear . and the collar needs to be able to spin inside of the gear for the one way bearing to work.
My solution was to use a top locking collar off a nitro century.It uses setscrews instead of a bolt.I positioned one set scew in the mainshaft hole so it couldn't slip and put flatspots on the mainshaft for the other 2 set screws. And of course i used lots of red locktite.
If you're useing the third bearing block as i am you'll need to take the small end of the collar down about 4 mm untill it is flush.
You could use a top lock coller off the swift, But the hawk one i used is a lot bigger and stronger. Don't whant that collar comeing loose

Procedure for assembley is slide the stk maingear in place with the main shaft out or slid up.Then flip heli upside down and place 4 3mm thick spacers on the stk maingear, after removeing the screws of course. Then slide in the second maingear careful not to disturb spacers the teeth on the main gear will only line up in one of the 4 possible positions.then install 12-15 mm long allen bolts with blue locktite loosley. Now you can slide you motor back so the pinion is engaged. this will ensure proper alighnment of gears then tourqe the maingear bolts.
Obviously you will need one of the long pinions you can find them at heliworld under swift upgrades.they make them in 9 ,10, 11, tooth.
I'm going to order one ofthe double gears for the 620 swift comes when they come off back order to see how they did it. It should come with spacers and longer bolts witch will simplify the procedure.will just need an additional lock collar I'm thinking.

04-12-2008 02:58 PM

Pistol_Pete
Elite Veteran
Location: Tampa Bay non-Buccaneer

and the purpose of this modification?

<><>...the lunatic is in my head...<><>

04-12-2008 07:44 PM

HOMEPAGE

centuryman
Veteran
Location: deerriver,mn usa

So i can spin big blades pull lots of pitch,do hard 3D and just alaround have lots of fun with out haveing to replace the maingear all the time.

Haven't you looked at the 620 10s setup. thats where i got the idea.And the cold weather of northern minnesota has alot to do with the plastic gears failing.
Winters are awefull long and cold up here. If i waited till spring to fly I'd miss 6 months of flying.
The last gear i sripped was on a 60 degree day. so I'ts not just the cold.

04-12-2008 08:31 PM

aerton
Senior Heliman
Location: Longueuil, QC, Canada

Try Montreal, QC...

04-12-2008 08:39 PM

HOMEPAGE

centuryman
Veteran
Location: deerriver,mn usa

So you know my pain. We just got dumped on by not one but two blizzards in one week with 3 feet of wet heay snow between the two storms.Fortunatly i have my own flying feild and a snow plow witch i had already taken off and had to put back on.The storms are done but the wind isn't. Maybye tomorrow.

04-12-2008 08:49 PM

Pistol_Pete
Elite Veteran
Location: Tampa Bay non-Buccaneer

Ah...the dreaded cold weather issue of plastics...got it.

the only cold issues I have is whether the beer is or isn't.

<><>...the lunatic is in my head...<><>

04-12-2008 10:25 PM

HOMEPAGE

Zaaaguy72
Senior Heliman
Location: Grand Rapids, MN

You've been busy Centuryman, I cant wait to see it fly next weekend!

04-12-2008 11:09 PM

RappyTappy
Elite Veteran
Location: Las Vegas, NV

just kidding, but pics would be nice

Chris
Rex 500
Burning them electrons :D

Forever Brothers
Mickey Tylo

04-12-2008 11:49 PM

HOMEPAGE

Zaaaguy72
Senior Heliman
Location: Grand Rapids, MN

Centuryman is my mentor and flying buddy, and strangely enough, he owns 18 helis and no digital camera!!!! One of these days if I can find my camera i will take it to Century's house and take photos. Holy cow Centuryman, you complain that I don't fly my Nitro enough, looks like you don't fly at all, too busy on runryder you Senior Heliman you!!!!

04-13-2008 01:01 AM

centuryman
Veteran
Location: deerriver,mn usa

Well the weather is lousy and a guy needs a break from assebling new helis once in awile.I did just come in from two flights with my venture 50. Man after flying my swift and Phazor 600 so much latley and then going back to one of my nitros is strange all can say is WHERE'S THE POWER

But seriuosly they are nice for a lesurely underpowered cruise when you don't feel like getting radical or for working on some of those new manuvers.
Sorry about the no pics.I'll put a camera at the top of my list, Since zaaaguy72 can't seam to find his.

04-13-2008 02:13 AM

centuryman
Veteran
Location: deerriver,mn usa

Just came in from the maiden flight's on the double maingear swift 16 on 8s 1907 power.Works great .I need more blade. I will put some 550 widechords on tonight and try it again tomorrow.I use same motor in my Phazor 600 with 620 blades at 13/13 pitch and 2100 haedspeed.
and it weighs 7.5 pounds verse the 6 pounds of the swift.So I'm thinking i may need to strech the swift with a 620 boom and belt to run 620 blades to make use of the power.

04-17-2008 04:05 AM

Zaaaguy72
Senior Heliman
Location: Grand Rapids, MN

Although I have not seen it fly yet, the double gear Centuryman made looks cool. I went to watch him fly it yesterday, but unfortunately he crashed into a tree earlier that day!!! He has it fixed and ready for this weekend and I look forward to seeing this beast fly!

04-18-2008 07:45 PM

centuryman
Veteran
Location: deerriver,mn usa

TRyed the 550 widecords today. Made a huge difference it's the fastest heli I've seen .Untill the motor shaft came loose from the rotor.I guess I'll be sending the motor in for warrenty.It only has 6 flights on it.
Anybody heard of Neu's doing this?

04-21-2008 02:39 AM

Pistol_Pete
Elite Veteran
Location: Tampa Bay non-Buccaneer

Quote
Anybody heard of Neu's doing this?

thats a no for me.

FWIW try a search in rcuniverse.com...if it has happened it would definitely be in there as well.

<><>...the lunatic is in my head...<><>

04-21-2008 03:53 PM

HOMEPAGE

centuryman
Veteran
Location: deerriver,mn usa

Just sent the motor off for warrenty repair.also a new century 650a in a 565 kv is on it's way.With an 11 tooth pinion it should net simular headspeed as the neu at 900 kv.I've been curious to see how the new century motors stack up to the 1907. So i geuss here's my opertunity to find out.I thought i might try 10s in this bird . if a lot of power is good an insane amount should be better. Right?

04-21-2008 11:59 PM

laughingstill
Key Veteran
Location: Gainesville, Fl, USA

Any pics yet?

3DMP-E, Logo 6003D, Logo103D Carbon and Trex 450se Flyin Firefighter

04-22-2008 12:02 AM

centuryman
Veteran
Location: deerriver,mn usa

Not yet.

04-22-2008 12:47 AM

Ravenhyper50
Senior Heliman
Location: Ottawa