Your thoughts and input on the Velocity 90.

[backburner1955]

I have noticed that there is a lack of "Chatter" here in the Velocity 90 section. Is that because everybody is satisfied with thier Vel90's, or there is not very many owners of the Vel90?

Is the Velocity 90 such a solid and good helicopter that there in not much talk about upgrades and repairs?
Put your input here about your experience with the Velocity 90, I am interested in picking one up, but I want input first.

Thank You

[tS8103]

I am personally very happy with my V90 and have no real complaints. The only issues that I am aware of are the too large hole in the main shaft, longer tail shaft, and more durable main gear and these have all been replaced by outrage. I personally flipped my top bearing block and added a clamp underneath to remove any minute traces of play in the system and to truly share the vertical load with all three bearings. Also I slightly bent the ends of my boom supports so that they would make better contact with less stress and used red thread lock on them because i got tired of the bolts loosening.
That being said I too have wondered about the lack of traffic on this forum. Hopefully no news is good news.
Tone

[goldwing1957]

If I could do it over I would go with a Avant. I had wrong blade bolts in my kit. Called Heli Direct they said they haven't heard of any problems so I had to buy some before I could fly. I had these little hour glass shaped aluminum things I couldn't find on the manual. They turned out to be the spacer for the boom support. They're cone shaped, had to replace those. Plus there should have been an angle machined on the boom mounts so the boom supports aren't bowed. The gears on the tail feel rough. And I have one of the main shafts with the holes that are too big. Other than all these issues I guess it's an ok heli. I have a Trex 600N I've been flying for 3 years now & all I do is fuel & fly.

[tS8103]

+1 on the blade bolts, I forgot about those.
Tone

[backburner1955]

Are these kits that you had problems with the older kits?...

I know there has been updates to the boom support stand offs, and other parts.

[goldwing1957]

No, I got it in March. It's supposed to be the updated kit.

[backburner1955]

Originally Posted by goldwing1957

No, I got it in March. It's supposed to be the updated kit.

The only problem I see with that is, the kit may have been an older one in stock and the supplier thought it was one of the newer. maybe....

[goldwing1957]

Yeah that's true... I know I'm not too pleased with all the errors with my kit. I've never had problems with other kits. Hirobo, Thunder Tiger Align. I was looking for a good 90 other than the Trex 700. Everybody has one of those. I haven't flown it yet, hovered it 1 time, looking to get 1st real flight in this week.

[tS8103]

Mine was one of the first batch

[kazager]

. I had these little hour glass shaped aluminum things I couldn't find on the manual. They turned out to be the spacer for the boom support. They're cone shaped, had to replace those.

Why did you have to replace them?

[Costas]

I'm currently still in the midst of assembling my Velocity 90.

I have built a considerable number of machines over the years and one thing I can tell you is that every machine I have built requires some TLC to get the most out of it.

One thing that has really surprised me is the actual quality of the materials used by Outrage. I'm really impressed. There are no 'soft' alloys utilised etc - which can be a common problem with some lower priced helis.

Sure there are a couple of minor teething issues such as the non fully shanked bolts, but at the end of the day these are only minor issues for an experienced builder. The fact that the Velocity is a fairly new kit usually means that there will be a few minor issues and Outrage seem to be addressing these - This is actually quite common with all helis and the good manufacturers tend to address these issues in due course.

[krunder]

I have flown the Vel 90 for a couple of months now, and I have seen quite a few things with my heli.

My kit came with the latest swash, main gear and tail shaft, but I still had problems under the build, nothing major, but annoying small things that the quality control should have found if they put a kit together.

The heli has some very nice features:
You can remove the fan shroud without removing the engine.
You can remove the engine without removing the landing gear.
Adjustable gear mesh.
The head is a piece of art - strong and smooth, it´s a sin to replace it with a FBL controller.

I have experienced these problems:
The fuel tank is a bad design - the shape and the position of the fuel line is s***, I mounted a header tank.
The transmission is noisy.
The main gear striped after ~20 flights (The new version)
Tail hum, caused by a bad torque tube (Fix Trex 700 assembly)
Easter vacation was cut short because a broken clutch shoe.

The heli fly very well. You can fell that it is 300g heavier than a Trex 700, but it is very strong and crashes better than a tractor

[bruno95]

Hi Krunder,

Fully agree with your analysis..i own 2 V90 since few month now and like them.

Only one thing i notice interesting in your comment:
Tail hum, caused by a bad torque tube (Fix Trex 700 assembly)

I suffer from this tail Hum as well and had to reduce head rpm a lot to make sure it does not appear...even had a tail blade exploding due to high resonance (and strong with no play tail drive that cannot absorb the vibration).
Could you please tell me more about your fix (i own also a T700N and have plenty of spare parts so i may give a trial on your fix for V90 using those parts)?

Thanks a lot in advance for your help

Bruno

[krunder]

Hi Bruno.

The torque tube from the Trex 700 is a direct fit. Also make sure that your complete tail assembly (Hub with grips and blades) is balanced.

[bruno95]

Hi,

ok thanks, easy to test

i'll give a try.

I checked everything already and everything is well balanced..i suspected the torque tube and tried with 3rd bearing on it but never thought using T700N torque...
i'll let you know the outcome.

Thanks again

Bruno

[royroy11]

Originally Posted by krunder

Hi Bruno.

The torque tube from the Trex 700 is a direct fit. Also make sure that your complete tail assembly (Hub with grips and blades) is balanced.

so basically just use Trex 700 torque tube?? if that's the case, i think that's a better solution than the outrage one anyway - no need to install and glue splines and screws, one piece is much better.

also, as for Outrage problems - on the front tail gears, do you guys have to switch between the top and bottom gears for better fit/mesh with the umbrella gear?? i found that i have to do it every time i stripe those gears.

[H to the C]

Guys one thing you can do is to make a stronger front tail pushrod. Just replace the stock carbon tube with a stiffer one. I used a old velocity 50 boom support.

Thi will take all that high resonance away.


Hc

[DominicD]

Or you can go nuts and fill the entire inside of the CF tube with CA.

[krunder]

Hi HC

Nice to see you here - I did try to reinforce the pushrod it didn't help. The torque tube did the trick for me
Heliporn all the way

[bruno95]

Hi,

None of those did the trick for me..
i've same issue with the 2 V90 FBL (on one of them i even change the complete rear of the heli to brand new parts...not change at all in the behavior..did even try to put plastic tail blade holder and hub from T700N).
Did try with different tail blades (Edge,outrage, align, NHP) 105, 95..same...

But in my case, this ended up with an outrage tail blade that exploded in flight.

This happen when running over 1900 rpm (especially during small overspeeding when going to 0 pitch)...
I could find a compromise using a Revmax as regulator (couldn't get it to work with Vstabi governor or ALign Governor).

For your info, i transfered all the electronics, engine, blades, tail blades to my T700N and no problem (tried up to 2100 rpm !!).

The Issue may come from too tight transmission gear or not enough play in the complete tail system (from servo to tail blade).
For your info, this got worse (means appear at lower rpm) just after switching from DS650 servo to better tail servos (1 heli with MKS and the other one with Outrage HV).

From the last video of Lukas (without governor) or Dario, you can hear the sound as well...

Anyway, hope Outrage can find a solution so that we can run Higher headspeed...From now on, i can use the V90 which are great Heli anyway using REvmax limiter so they'll be back to the field...

Bruno