Roban apache 700

[heliboys]

Oh this isn't very encouraging. I was under the impression the Roban range were all spot on and that's why they're worth the money over a cheaper setup. Doesn't really sound the case judging by the posts here.

To be fair it's only the apache that's seams to have problems, my friend has two other Roban's and had no issues.

[Made2Fade]

Hi guys, let me explain this slightly as theres a few people going off track and i dont want Roban taking all the blame here...
Bear with Phil as hes not up to scratch with all the terminology (no offence mate) As most of you know i'm not really a scale model flyer but i have dabbled once upon a time
Right... firstly there is/was no tracking issue on the head or tail. The blades track perfectly and did so from the word go. Vibration originally came from the front of the fus and was around the rocket pods area of the machine. Understandably really and i would expect to see flex around these types of parts anyways. Phil has recently stiffened this area up after we test flew it. Since then that has cured alot of the fus vibes but also transferred alot of it to the tail area of the model. As you will all be aware the Apache has a 45 degree bend and raised tail rotor section. This is where the vibration is currently at. That whole section is vibrating and causing what looks like tracking issues on the tail but its actually just the raised tail section flexing. Phil has recently balanced his main blades like i originally suggested. This has now cured 80% of the vibration issues on the tail.

After closely inspecting the tail blades he seems to have bad blades. I'll upload the video shortly.
Bud sending him some new tail blades by all account.Hopefully this will put the remaining vibrations to bed.

[Made2Fade]

Heres the video of the tails... i have not seen this in the flesh but the obvious answer is something bent (ie tail output shaft/hub etc) or the tails are faulty/mis-matched.

[Phils]

Started this project a couple of years ago, got side tracked with decorating and moving house
one day it will get finished

[PHIL1967]

To be fair it's only the apache that's seams to have problems, my friend has two other Roban's and had no issues.

100% right there bud maybe released them too early , one thing for certain I don't think the paying customers should be the guinea pigs

[ChrisB]

One of our chaps is going to post pics of the head of his later,the four feathering shafts being held in situ by flats and grubscrews looks frightening IMHO,,he says Roban are going to drill right thru on newer ones.

A single grubscrew on a flat surface,not that deep holding a bladegrip carrying a blade that big from ejecting!!!,,,wow

[PHIL1967]

Started this project a couple of years ago, got side tracked with decorating and moving house
one day it will get finished

Lovely that bud which kit is it looks slightly different to the ROBAN my guess is TF models possibly

[Phils]

It was a TF many moons ago, to be honest after it arrived I wished I hadn't got it the quality is very poor it took ages to bring it up to this
it could never be called scale as its the wrong model to be a proper longbow
I have loads of photo's and everything on it works

[PHIL1967]

A few few photos of the finished Heli weathered up hope you like guys

[Granpappy]

Excellent model. I love the way the MPD's light up in the cockpit. Does the horizontal stabiliser move in forward flight?

[PHIL1967]

Excellent model. I love the way the MPD's light up in the cockpit. Does the horizontal stabiliser move in forward flight?

Thanks a lot iam quite pleased with it it now iam going to scale it up as much as possible I think it deserves it , the stab on this model is fixed it was going to be a lot of work to make it move i thought about doing it but the mounting points are very small I couldn't figure out how to do it , I think the posistion of the stabiliser dictates the nose down angle when in froward flight I think anyway not quite sure

[Granpappy]

The horizontal stab is controlled by the flight management computer in normal flight but it is also used by the weapons control system to manage the nose up angle in conjunction with the weapons pylon actuators to allow ordinance to be released at the optimum angle.

[chopper1]

Its looking Awesome mate as does my club mates one in desert sand colour scheme.
An add on to Chris B"s comments on the head .
Heres a picture of the head block as standard and one after a mod I did to retain the feathering shafts by drilling and fitting roll pins though to stop any movement.
Were hopefully testing it tomorrow.Should be solid now.
Well worth doing in my opinion before flying it though mate as they will move on you and could wreck your heli.
Would hate to see that happen to you or anyone else for that matter.

Ian

[ChrisB]

Nice one Ian,looking forward to seeing that upgrade.

Seeing those flats on shaft and just a grubscrew holding it on gives me the shivers every time i see it

[PHIL1967]

Thanks for that mate it looks like I've got a little job to do this weekend having said that I've never had a problem with that way in the past