RunRyder RC
WATCH
 1 page 394 views POST REPLY
HomeAircraftHelicopterBeginners Corner › Help with Motor RPM w/ Century Helicopter
04-26-2009 06:56 AM  9 years agoPost 1
nrad2000

rrVeteran

USA

My Posts: All  Forum  Topic

At full throttle - how fast in RPM do the os 50 hyper spinning?

At full throttle - how fast in RPM do the 1100kv motor w/ 6s spins?

- 800kV w/ 8s?

I'm thinking of turning one of my hawk pro (50) into an electric. I was thinking of using the Century 800kV motor w/ 8s Lipo and use the largest Pinion Gear that Century has (15 tooth). I'm wondering what kind of head speed this would give me. I'm planning to put this into a scale helicopter so crazy head speed is not necessary.

PM  EMAIL  Attn:RR  Quote
04-26-2009 11:54 PM  9 years agoPost 2
FlaG8r

rrElite Veteran

Florida

My Posts: All  Forum  Topic

http://www.readyheli.com/Online_Hea...ulator_s/81.htm

Life is tough, it's tougher if you're stupid

PM  EMAIL  GALLERY  Attn:RR  Quote
04-27-2009 12:04 AM  9 years agoPost 3
Gearhead

rrMaster

Vt

My Posts: All  Forum  Topic

EDITED again
Ratio between Counter Gears and Bell Gear,

53 Counter Gear... Ratio 2.038,
55 Counter Gear... Ratio 2.115,

Ratio between Drive Pinion and Main Gear,

13/60... 4.615
14/60... 4.285

Final Ratio with Head Speed and Engine RPM

55/13/60,, Final> 9.763,, 1639... 16,000,,, 1741... 17,000
53/13/60,, Final> 9.408,, 1701... 16,000,,, 1807... 17,000
55/14/60,, Final> 9.065,, 1765... 16,000,,, 1875... 17,000
53/14/60,, Final> 8.736,, 1831... 16,000,,, 1946... 17,000

Jim
Buzz Buzz Buzz

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 394 views POST REPLY
HomeAircraftHelicopterBeginners Corner › Help with Motor RPM w/ Century Helicopter
 Print TOPIC  Make Suggestion 

 2  Topic Subscribe

Tuesday, December 11 - 6:26 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online