Robbe Schluter Jet ranger futura 111

[Vic.P]

A few photos of the Robbe Jet ranger i bought recently, still not flown it yet but maybe this weekend if the weather is good.

The first pic is from the day i bought it, i have since removed the unsightly silicone tube fuel filler and replaced it with a TT quick filler.

The second shows the Curtis Youngblood futura SE mechanics

The third was taken today after completing an overhaul ready for testing

[Boggy]

very nice

[tiddler]

[electricsceadu]

nice heli

[trillian]

That looks really really nice indeed.

'very familiar mechanics for me. My Futuras are my fav helis.

Were you used to the system 88 swash setup already? It is a bit strange at first.

[electricsceadu]

i knew someone would be along soon with the word robbe here

i've always liked the system 88 set up
but i've only ever flown one (not mine though)

[Eckchaz]

Thats a very nice looking model! Hope the weathers nice for a maiden this weekend!!

[Vic.P]

That looks really really nice indeed.

'very familiar mechanics for me. My Futuras are my fav helis.

Were you used to the system 88 swash setup already? It is a bit strange at first.

According to the previous owners notes scrawled on the build instructions it's only had 6 flights from new..........might have just about run in the OS 61 SF then

No, i've never used system 88 before so i was a bit thrown when i first set up the swash. No set up instructions came with it although the build instructions did, So i managed to glean a bit of info from them. Given that it is mechanical mixing as apposed to more usual eCCPM and rather than assuming there was something wrong with it, i googled for a solution and read about the 45 degree offset and then it all made sense .
I've checked and double checked everything on the swash and it all seems fine. But....... just to triple check with someone who's familiar with the mechanics and please correct me if i'm wrong.......

Looking from the rear of the heli and for a clockwise rotation head

The front-left arm represents the nose of the heli. Push the forward cyclic (down elevator) and the nose (front left arm) drops.

I'm intending to run up the head to just before lift off and check the disc to be sure!

Now all i need is some good weather on the weekend (it's pi##ing down here at the mo so hopefully it'll clear by then)

Thanks to all for looking in and hopefully i'll have some in-flight shots of it to share with you soon

[electricsceadu]

if the carb plays up on the 61sf the 50 hyper carb works realy well on the 61sf motor

[Steve]

Checking the setup on these machines is easy - it's just like any other heli..... trust me, I've had 3 Millenniums in my previous life.

Don't be put off by the 45 degree thing and get back to basics:

Align the blades out stretched and perfectly inline with the tail boom. Now apply forward cyclic (down elevator) and the paddles should tip forwards. Apply up elevator and the paddles should tip backwards. Apply aileron and they shouldn't tip at all.

Now rotate the head 90 degrees so that the flybar is in line with the boom. Apply aileron and the paddles should tip in the same direction as the cyclic stick - i.e. right aileron tips the paddle right etc. Apply elevator and the paddles shouldn't move at all.

If you clear your mind of the odd titling swash plate and just concentrate on the affects at the paddles/blade holders, then it all becomes just like every other heli.

[Vic.P]

Checking the setup on these machines is easy - it's just like any other heli..... trust me, I've had 3 Millenniums in my previous life.

Don't be put off by the 45 degree thing and get back to basics:

Align the blades out stretched and perfectly inline with the tail boom. Now apply forward cyclic (down elevator) and the paddles should tip forwards. Apply up elevator and the paddles should tip backwards. Apply aileron and they shouldn't tip at all.

Now rotate the head 90 degrees so that the flybar is in line with the boom. Apply aileron and the paddles should tip in the same direction as the cyclic stick - i.e. right aileron tips the paddle right etc. Apply elevator and the paddles shouldn't move at all.

If you clear your mind of the odd titling swash plate and just concentrate on the affects at the paddles/blade holders, then it all becomes just like every other heli.

Just tried your suggestion and everything checks out fine.....cheers Steve ............now why didn't i think of that, i've done it with my other helis.......doh

electricsceadu wrote: if the carb plays up on the 61sf the 50 hyper carb works realy well on the 61sf motor
I'll bear that in mind should it prove problematic....thanks

[Steve]

Just tried your suggestion and everything checks out fine.....cheers Steve ............now why didn't i think of that, i've done it with my other helis.......doh

You're welcome.

[trillian]

I didn't see this until now and the question is already answered but yes you were correct. The swash is offset 45 degrees to the left.

I still catch myself looking at it side-on and from the nose sometimes when checking to see if the swash is level and then realising I have to look at it from the proper angle to adjust the linkage or subtrim etc.

Another point of reference is if you look at the long control rod that goes from the swash to the blade grips you can see they take their deflection from the swash at the corners and transfer it to the grips where the rotorhead is at 90 degrees to the rest of the heli.

We're just used to seeing a swash moving intuitively in the direction we expect the control action to occur so it seems weird.

[trillian]

if the carb plays up on the 61sf the 50 hyper carb works realy well on the 61sf motor

Interesting. That's something I wouldn't have thought of trying. I have a couple 61SFs and one is in a Futura Supersport. So far it runs very well.

[Vic.P]

Hi folks,
Got the Jet ranger airborn today in it's second test flight and all went very well after balancing the blades and setting the tail offset after the first test.
I got my brother to hover it for me while i took a few shots of it, here's a couple of the pics