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No, you dont need to connect common grounds, just make a harness that takes the power from the 2S LiPo and splits into two heavy duty servo leads. These two leads connect into the FBL and/or receiver directly.. assuming you are using HV servos? PS.. the AR 620 is not really suitable for a large...

KST servos are unbeatable bang for buck

You can get a lot of transmitter for $500. the Spektrum DX9 would be an obvious choice. 9 channels, most of the modern 'bells and whistles' such as voice announcements. telemetry etc. Easy to use programming and good after sales support from horizon hobby. Receivers are also well priced and you...

Our lockdown rules are similar but i'm happy to take the chance of a fine. The wasteland I fly at is deserted, no one there to give a virus to (and I dont have a virus anyway:rolleyes:). Where I fly cant even be seen from the road so if the police do happen to drive past they wont know i'm...

Strange times we find ourselves in. Is anyone else managing to get any flying in during 'lockdown'? All the official club flying fields in the UK are closed due to the lockdown. Luckily i have a bit of waste-ground a few minuted from my home that i can go to and not be near anyone, so I've been...

The X360 looks like it's fantastic value. A great introduction to 'proper' RC helis for beginners, or a great heli for anyone looking for a cheap fun heli. PS... no relation to Paul? Couldn't help but ask as you are from the same part of the world.

Interesting question. The answer needs an understanding of some aerodynamic principles. For optimum efficiency the lift distribution over the rotor span should be equal, so that the air is being accelerated downward equally over the full area of the rotor disk. As you point out, the tip travels...

I'd personally dispense with the rubber mounts, not needed on an electric heli. What i do to fill the gap between the screw and the large hole in the servo mounting lug is to get some 4mm x 2.5mm plastic pneumatic tubing (available on eBay etc) and cut slices about 2mm long. Slip these over the...

Sounds like a fun project. Did you have a specific ESC and battery in mind?

Flybarless conversion is perfectly possible. I would suggest avoiding the DFC head snf go for the standard flybarless head from the 600 Pro EFL. You might have to cut down a main shaft to the correct length unless you can find a suitable one that's still available from the long list of...

Need to wind back a little. first of all what RPM do you need the impellers to run at? This will determine the voltage you must run, which in turn selects the ESC you need. the motors are specified for 90V which is VERY high. that would be a 24S pack. there are very few ESC's that i know of...

The 600e 'Pro' is a very different heli to the one in this thread (which is a 600 ESP). The 600e 'Pro' (as per the manual you mentioned) was the model that followed immediately after the ESP, but it had a total frame re-design. The biggest changes are: The Pro has the motor positioned in the...

By the way, if you want a cheap transmitter that will work with almost any 2.4GHz receiver including Futaba, the Jumper T16 Pro Is fantastic. It is unique in having a built in 'multi-protocol' module which allows it to bind to most brands of receiver. It's a very capable radio, 16 channels and...

For the vibration, one thing that is often overlooked is tracking (unequal pitch from one blade to the other). If the tracking is badly out you will get a severe vibration, especially at lower RPM as the helis spools up and powers down. You can narrow things down quite easily. If it a...

3.7v is far too high. When you pull current from the battery the voltage ‘sags’ so cutoff voltage has to reflect this. Set the ESC cut to no higher than 3.3v and use the ‘soft’ cutoff so you don’t lose all power if you do hit the cutoff. use a timer, don’t fly to the cutoff

Keep the build pics coming. I was seriously considering the 880 myself a while back, but decided against it when Velos discontinued it. Not a cheap heli for sure but there are more expensive hobbies out there, and at the end of the day you can’t take it with you:biglaugh: Turbine power interests...

SBus is a Futaba receiver protocol, so it won’t work with a Spektrum transmitter

Poor show asking you to pay for items clearly missing from the kit

Well engineered and robust components, as would be expected or a monster size heli! Shame about the missing balls. Hope you get replacements send promptly

I have a quiet field I can fly at and not break any social distancing rules, so I got a few flights in: