RunRyder RC
WATCH
 1 page 1253 views Post Reply
Home✈️Aircraft🚁HelicopterKyosho Caliber/Quest Neo-Caliber series › Caliber 30 convertion to .50
07-30-2007 12:09 PM  13 years ago
Topic Vote0Post 1
rguimaraes

rrNovice

Portugal - but born in England!

MyPosts All Forum Topic
Caliber 30 convertion to .50
Now that I know what a .50 is (after buying my new Caliber5!!) I'm thinking in converting my old Caliber 30 to a .50...

Can you tell me what do I need to do it?

Is it possible to do it buying only the following items:
- Engine
- Muffler
- Blades
- CA5106 - clutch housing
- CA5107 - fly wheel
- CA5116 - Engine mount
- CA5120 - Tail belt
- CA5121 - Tail boom

Does the engine and engine mount fit the C30 frames?

Thanks!
Regards,
RG
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
07-30-2007 02:10 PM  13 years ago
aliensil

rrApprentice

Laredo Tx

MyPosts All Forum Topic
Don't forget the main gear with bose, the 14 or 15 t pinion (because calibe 30 is 18t) and engine mount, remember to change the plastic upper head with the metal CA5102 part.

And if you are using the eCCPM on the Caliber 30 don't forget to stiff the servo frame.
Flying pigs 8,000 feet above Sea level
SHARE  PM  EMAIL  Attn:RR  Quote
07-30-2007 02:26 PM  13 years ago
shesha

rrVeteran

Kuwait

MyPosts All Forum Topic
rguimaraes do a search on the same forumn you will find that this matter was brought up before.

Here some of them:

http://www.runryder.com/t257313p1/?...0+50+conversion

http://www.runryder.com/t348834p1/?...0+50+conversion

Btw, thats a sharp looking caliber30
Zero bubble....
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
07-30-2007 02:58 PM  13 years ago
irocu88

rrApprentice

norfolk,va

MyPosts All Forum Topic
The only things you NEED are the longer boom, longer belt and the motor mount for the 50 engine. You can change the gearing in which you will need the gear boss, and I went with the 87T main gear from the Caliber M50 if I remember right. I did not change the pinion gear. I also went with the full metal corect head. Most of the bling bling you can still get from cyberheli.The longer parts you need and motor mount may work from the Caliber 5, since you have one you can check that out. the motor and mounts do fit the C30 frames and you can build your own servo frame stiffiner from carbon fiber boom support that work well, there are pic's in my gallery.

Jeff
Caliber 90 FT os91 c-spec
Caliber 50, OS50 hyper
Caliber 30 OS37
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
07-30-2007 03:11 PM  13 years ago
rguimaraes

rrNovice

Portugal - but born in England!

MyPosts All Forum Topic
Why should I have to change the gearing??
Isn't the ratio of the C30 the same of the standard C5 (9.65:1)???
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
07-30-2007 03:45 PM  13 years ago
aliensil

rrApprentice

Laredo Tx

MyPosts All Forum Topic
Of course the Caliber 30 gear ratio is 9.6:1 but with different engine requirements and different gear relation.

OS 32 practical RPM 15,000
OS 37 practical RPM 16,000
OS 50 Hyper practical RPM 17,000

Caliber 30
main gear 90t
pinion gear 18t
clutch 26t

Caliber 5
main gear 70t
pinion gear 14t (15t op)
I don't remember how much teeth are on C5 clutch bell.

I imagine if you don't change the gear/pinion you will get a super revolutionized machine or and underpowered engine. I'm not an Engineer or mathematician to explain how relations are calculated but I'm sure someone in the forum can do.
Flying pigs 8,000 feet above Sea level
SHARE  PM  EMAIL  Attn:RR  Quote
07-30-2007 04:03 PM  13 years ago
aliensil

rrApprentice

Laredo Tx

MyPosts All Forum Topic
I'm sorry.

A 9.6 relation is absolute for all cases, no matter if you use 18k or 15k RPMs on engine, relation stay fixed.

Now it comes the torque vs power problem.
Flying pigs 8,000 feet above Sea level
SHARE  PM  EMAIL  Attn:RR  Quote
07-30-2007 11:44 PM  13 years ago
dkshema

rrMaster

Cedar Rapids, IA

MyPosts All Forum Topic
Caliber 30 is 9.65:1 reduction ratio, Caliber 5 in stock format is 9.65:1 reduction ratio, they're identical.

So, no, you don't HAVE to change the ratio. The 5 flies pretty well with that 9.65:1 gearing, but the 9.1:1 ratio that you get by installing the 15T pinion makes it really come alive, though.

The one thing you didn't put on your list is a set of 600 mm blades. And while you're at it, bump the tail rotor blades up to 95 mm.

Add up the piece parts, if you come close to that of a Caliber 5, then it would be wise to just buy a second C5.

You don't need to upgrade to the metal head of the C5, after all, when TRIM corporation was selling C30 to 50 upgrades, you got a belt, a boom, a set of motor mounts, and I believe you got a new clutch. Nothing else, the conversion went well, and the heli flew.
-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
07-31-2007 10:59 PM  13 years ago
cmsilvoy

rrKey Veteran

Durham, NC

MyPosts All Forum Topic
actually, the Trim upgrade consisted of a longer boom, belt, motor mount, and the clutch shaft (onto which threads the good old 30 size clutch).
I also did the 30 size clutch shaft modification which reduces your upgrade needs to the motor mount, tail boom, belt, and blades!!!

I will forever regret retiring the Caliber 50 project...

Chris
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-01-2007 01:58 PM  13 years ago
50hokum

rrNovice

Marseille - FRANCE

MyPosts All Forum Topic
Hi,

I did the change 6 month ago, see my link on the french forum : http://www.france-helico.com/module...ewtopic&t=18035

It is better to change pignon/wheel of the C5, the ratio (5.0) is THE SAME but the gear module is bigger => more strength

14t/70t for the C5
18t/90t for the C30

Alain
Caliber50 + TT50H + SAB600mm carbon
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
08-01-2007 02:06 PM  13 years ago
aliensil

rrApprentice

Laredo Tx

MyPosts All Forum Topic
Alain

The link is dead.
Flying pigs 8,000 feet above Sea level
SHARE  PM  EMAIL  Attn:RR  Quote
08-01-2007 04:02 PM  13 years ago
50hokum

rrNovice

Marseille - FRANCE

MyPosts All Forum Topic
Sorry but the server of this site is sometimes busy.
See my converted heli on the 4 pics (1rst line) of my galery : http://www.runryder.com/gallery/24174/
I quickly translate my original post on the french forum :

It is now possible to convert le Cal30 in Cal50 with the following Kyosho stock spare parts (equivalent to the TRIM CORP upgrade) :

-> clutch housing (50 class engine) CA5106 11.97$
-> engine mount CA5116 29.93$
-> tail drive belt CA5120 21.57$
-> tail boom CA5121 15.58$

With a TT50H engine (never supplied in Kyosho combo !) there is 4 additional modifications needed :

-> drill the cranckase hole of the engine at 3.5mm diameter
-> cut 3mm of the end of the cranckshaft (treaded side)
-> drill the tread of of clutch housing (6.5mm diameter) on 3mm
-> slightly cut at 45° on 3mm approx the cylinder head to create a clearance with the frame spacer.

I also think that the original frame is not strength enought for this convertion without improvement of the servo frame.
That the reason why I made a carbon frame (on sale on this forum) like cmsilvoy did.
BUT I can tell you that my second carbon prototype is ready (carbon with full push-pull CCPM) ! and I am thinking of the commercial possibilities with the persons concerned by the construction (laser cut of carbon and CNC parts).

Alain
Caliber50 + TT50H + SAB600mm carbon
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1253 views Post Reply
Home✈️Aircraft🚁HelicopterKyosho Caliber/Quest Neo-Caliber series › Caliber 30 convertion to .50
Print TOPIC

 4  Topic Subscribe

Monday, September 28 - 3:43 am - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online