Cut blades. Can't lift off - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Other Makes and Models Helicopters


Other Makes and Models Helicopters Other makes and model Helicopters


Reply
 
LinkBack Thread Tools Display Modes
Old 08-05-2017, 04:33 AM   #1 (permalink)
Registered Users
 

Join Date: Aug 2017
Location: India
Default Cut blades. Can't lift off

HI all,

I owned a generic 4 channel helicopter with flybar. I modified the tail rod and made it longer. It flew pretty well, but was a bit on the tail heavier side. So i decided to take bigger blades from an old broken heli. But since it was a bit too heavy, I cut the blades to a smaller size. Problem is the heli won't lift off anymore. It still works well with the smaller blades that came along with it. Can anyone help?

in the picture - The red blades are the ones cut, which cannot lift. The black is the original which can lift.


Dlancerx is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 08-05-2017, 07:09 AM   #2 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

No photos showing up.....
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Old 08-05-2017, 07:23 AM   #3 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: Aug 2017
Location: India
Default




Attached Thumbnails
Click image for larger version

Name:	IMG_1958.jpg
Views:	50
Size:	42.2 KB
ID:	718042   Click image for larger version

Name:	IMG_1959.jpg
Views:	41
Size:	48.8 KB
ID:	718043  

Last edited by Mercuriell; 08-05-2017 at 07:59 AM..
Dlancerx is offline        Reply With Quote Quick reply to this message
Old 08-05-2017, 08:09 AM   #4 (permalink)
HF Support
 
Posts: 14,028
 

Join Date: Sep 2006
Location: Qld, AUSTRALIA
Default

Hard to say for sure, maybe the bigger blades can't be spun so fast by the motor and hence don't generate enough lift.
__________________
John
Mercuriell is offline        Reply With Quote Quick reply to this message
Old 08-05-2017, 10:01 AM   #5 (permalink)
Registered Users
 

Join Date: Nov 2013
Location: Aberdeen, UK
Default

If the blades used to be much wider (chord) and you have cut them down then because they are curved you will have lost pitch angle. A view of the new blades looking from the tip inward would help.
__________________
Gob 700 Speed | Gob 770 Carb. Comp | Gob 630 Comp | Trex 700X | KDS Agile 7.2 | Compass 7HV U | Trex 600Pro (626 stretch) | Kasama Dune 600 | KDS Chase 360 | Devil 420
Grumpy_Old_Man is online now        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Insurance
Please select your insurance company (Optional)
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © VerticalScope Inc. All rights reserved.
 

SEO by vBSEO 3.6.1