RunRyder RC
WATCH
 1 page 541 views Post Reply
HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › Some advice please on my first scale build
02-25-2010 12:14 AM  10 years ago
Topic Vote0Post 1
Yug

rrMaster

UK. Herts

MyPosts All Forum Topic
Some advice please on my first scale build
I'm soon to start putting together Catablu's magnificent Westland HC2 in RAF Rescue livery. The mechanics are based on the Trex600e and i'm using 4 bladed head and tail rotor.
Scale and 4 bladed is all new to me so rather than throw bags of money at experiments with different blade types, motors and gear ratios etc, I thought it well worth drawing from the wealth of experience from you guys and seeing what you would reccommend so as to give me a good starting point.
I find it strange yet refreshing to feel like a complete novice once more, given the amount of experience I have over conventional pod and boom 3D setups. With this project, as soon as I start to consider the dynamic profiles of a 4 bladed system, my head is bombarded with too many unknowns regarding the drive train efficiency from motor KVM to gear ratio to head speed to blade profile, chord and span given the scale like requirements. What are the preferred blades, both main and tail. etc etc
So many questions.
Anyone ?
Vegetable rights and Peace
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
02-25-2010 05:32 PM  10 years ago
ttsingram

rrVeteran

Lincoln, Ne

MyPosts All Forum Topic
Not sure how much this will help as I'm no expert. But from all that I have read concerning multi blade heads for my own project. I believe the major concensus is that you either need a stronger powertrain, or shorter blades, or both. As you are looking at a quad blade setup you don't need as much lift from a single blade. You will now have four to do the same amount of work. And as for the motor, it is turning four blades vs. two now. It will take more power to turn the extra weight and drag with the quad head.

I know someone will chime in with a better explanation and advise.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 541 views Post Reply
HomeScale✈️AircraftScale HeliScale Helicopter Main Discussion › Some advice please on my first scale build
Print TOPIC

 1  Topic Subscribe

Saturday, December 5 - 3:05 pm - Copyright © 2000-2020 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online