Nov 28, 2012

Nitro and Gasser Engine and Clutch Alignment Trick

This is a quick little tech tip for those of you who have ever had trouble getting your nitro or gasser model engine properly aligned with the clutch stack. First off, what are the symptoms of a misaligned engine and clutch stack? Well, on the bench you can feel a roughness or unevenness when rotating the starter… more »

Nov 18, 2012

SK540 Governor with CC ESC

I’m not going to promise that this will work but it’s worked on mine and one other persons heli that we tried it on so it’s worth a shot. This is for using a CC ESC in the SK’s gov mode. I’ll start off by saying that if you put the CC in MulitRotor mode… more »

Nov 17, 2012

Leading versus Trailing Edge Control: A Brief Foray into Rotor Head Mechanics

I get a lot of questions surrounding the the differences between leading and trailing edge control on flybarless systems…What’s the difference? Should I care? This one trips up a lot of people because of the complexity of the topic, but I think it’s worth explaining. First and foremost, in today’s FBL systems where the delta angle… more »

Nov 11, 2012

Checking clutch bell runout

With most of the newer nitro models adjusting the clutch bell runout simply isn’t possible. Components are becoming more “plug and play” and, in turn, our habits of checking this these can get quite lax. The issue with this is that they can still have runout problems due to machining flaws. Excessive wear of clutch… more »

DX7 Nitro Gov with 3 head speeds and throttle cut

This is how I setup all my nitros with the Align Gov or AR7100r using the DX7 radio. This will also include programming for a Throttle Cut as well. Now keep in mind some of the exact values will differ depending what heli you’re putting it on, gear ratio, etc. but the general principals are… more »

Nov 4, 2012

Bent tail hub? How to check…

Here’s a little trick I found that is a pretty simple way to check for a bent tail hub. First, remove the set screw from the tail hub itself. Unclip your rear ball link from the tail rod and slide the entire tail hub and slider assembly off the tail output shaft. Rotate the tail… more »

Oct 31, 2012

Ferrite Rings on ESC’s: What Do They Do and How Can You Use Them?

A quick note to clarify the need for and use of ferrite rings… The ferrite ring acts as a common-mode, inductive filter of the high-frequency noise produced by the switching of the MOSFET’s inside of the ESC. Basically, it prevents the AC current fluctuations inherent in MOSFET switching from progressing beyond the ring itself (it… more »

BeastX V3 Tuning Guide

I recently collaborated with Stefan from BeastX to help go through some of my previous recommendations in the Tuning Guide. I gained a lot of understanding on the parameters and found there were some definite cases of misunderstandings due to language barriers and wording in general. We discussed the differences in tuning large vs. smaller… more »

Flybarless Tail Tuning with V-Bar/Logo Example

Some of you may recognize this tech tip from my original tail tuning guide in the V-Bar forums on Helifreak. I originally wrote this in response to requests for a sticky regarding Logo/V-Bar tail issues, but I’d like to emphasize that this is applicable to pretty much any heli or flybarless system. For troubleshooting purposes… more »

Oct 27, 2012

Futaba gear-set for BLS256HV and BLS251

If you’ve ever stripped the gears on a BLS251 and look for the advertised replacement gearset you’ll notice that the advertised BLS251 gear-set come with the one metal output gear and are certainly not cheap. Because of so many plastic gears it’s highly unlikely that the metal output gear will get damaged. What you might… more »