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HomeAircraftHelicopterGasser Model RC HelicoptersOther › New Futura SE Gasser owner need help with parts
01-18-2009 02:39 PM  9 years agoPost 81
Fixit

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UK

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23 or 26 Zenoah
I’m itching to get this heli flying but it still needs an engine, I have a Zenoah 26 in my Raptor at the moment and I’m thinking about using that for the Futura, I know people say the 26 suffers more vibes than the 23 and I have noticed that with the Raptor Gasser but I’m thinking because the Futura is belt driven the vibes shouldn’t be a problem as the belt should help dampen them.
Anyone running a 26 in their Futura ?

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01-18-2009 03:39 PM  9 years agoPost 82
nadman

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Dubai

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What is the gear ratio?
The lowest I could have in my Cuatro was 7.6 so I decided to go with the 23.

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01-18-2009 05:13 PM  9 years agoPost 83
Fixit

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UK

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What is the gear ratio?
The lowest I could have in my Cuatro was 7.6 so I decided to go with the 23.
With the gearing that came with this one it works out at 7.85

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01-19-2009 05:18 AM  9 years agoPost 84
nadman

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Dubai

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Because of the gear ratio I would say 23 is a better choice. But then all depenends on what head speed you are looking for.
23 max 13000/7.8=1666
26 max 12000/7.8=1538

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01-19-2009 11:10 AM  9 years agoPost 85
Fixit

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UK

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Thanks nadman
Hmmm both are a bit slower than I'm used to, guess I need some 800 blades then

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01-19-2009 10:21 PM  9 years agoPost 86
Fixit

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UK

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HT Lead is too short
Thats what I love about this hobby nothing is straight forward, I started to fit the 26 engine and all was going pretty well until it came to fitting the HT lead on the plug, dam thing is too short so t looks like bolting the coil to the frame nearer the plug.

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01-20-2009 03:13 AM  9 years agoPost 87
Fixit

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UK

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Dam what’s wrong now I just fired the furura up but there's no servo in for the throttle yet so I just held the arm open slightly and it started easy but I couldn’t feel the clutch trying to grab so it’s either not working or I forgot to put the key in and do you know what, I don’t remember seeing it
More work tomorrow I guess.

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01-20-2009 05:31 PM  9 years agoPost 88
Fixit

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UK

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The clutch is engaging but it feels way too late, I’ve only tried it on the bench and the heads not loaded but its past ¼ stick before it comes in.
Is there a gas clutch for these or can I get a thicker liner?
The other thing I noticed was the belt is running up on the bell gear so I’m assuming the barrel needs to go up to combat this or is there another way?

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01-20-2009 07:45 PM  9 years agoPost 89
shawmcky

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Isle of Wight,United Kingdom

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Clutch Engagement
Hi Fixit,The clutch on the millenium(my 231 gasser) does not grab at all at lower speeds but works fine when the revs pick up,it has a nice take up,probably is fine.

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01-20-2009 08:15 PM  9 years agoPost 90
Fixit

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UK

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Hi Fixit,The clutch on the millenium(my 231 gasser) does not grab at all at lower speeds but works fine when the revs pick up,it has a nice take up,probably is fine.
Thanks shawmcky That’s good news, I will give it a try before I start replacing and parts, just need to sort the belt alignment out now, trouble is there’s no adjustment unless I start slotting holes and I don’t really want to start doing that, I might try and cap the bell gear by bonding some plastic on it and then trim it up on the lathe, the belt can’t run off then.

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01-20-2009 10:58 PM  9 years agoPost 91
Markus

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Montreal

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Belt always moves up to the high point, sounds strange but its a fact
if belt rides up, tilt engine backwards on the futura (pulley side) ( shim,s on the rear engine bolts ) and belt will go down.

Best regards

Markus

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01-20-2009 11:11 PM  9 years agoPost 92
Fixit

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UK

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Right so the plug end needs to go down right?
I've just glued some thin plastic on the pulley and trimmed it on the lathe anyway, not sure if it will stay on but it survived the lathe so it might work.

Dam the wife, while I've been in the workshop she's just nicked my pudding I was saving for later

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01-20-2009 11:46 PM  9 years agoPost 93
Markus

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Montreal

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The plug end down, right.I see that your pulley is the older plastic version, the newer pulleys are aluminum and have a rim on top as standard. Although this prevents the belt from chewing up the frame , it just chew's itself up if not properly aligned.

Markus

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01-20-2009 11:58 PM  9 years agoPost 94
Fixit

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UK

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OK, I'll see if I can run a straight edge across the two when I build it back up.
Cheers

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01-24-2009 05:26 PM  9 years agoPost 95
Fixit

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UK

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The Future had its first flight today but as I thought the clutch didn’t grab soon enough and when I did get the blades spinning the tail was uncontrollable, it seemed like the gyro was in rate mode but that was probably because I didn’t have enough head speed, It did hover for a few seconds and everything else seemed ok and it was nice to see it get off the ground at least.
The clutch shoe had heat stains on it when I built it so I guess someone’s had problems with it before.

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01-26-2009 02:30 PM  9 years agoPost 96
Fixit

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UK

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Robbe S4109 Wanted
I'm need a S4109 4 stroke clutch shoe like the one in the picture below, I'm led to believe the part has been changed but the suppliers still show the old picture on their web sites so there’s not much point in ordering one unless someone still has the old one in stock.
If you have one you don’t need or know where I can get one please let me know.
Cheers
Fixit

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01-26-2009 03:02 PM  9 years agoPost 97
j.8

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Denmark

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Hi Fixit

Since you live in UK, perhaps you allready
tried here.
http://www.modelhelicopters.co.uk/a...prs_Robbe6.html

This is from a German dealer
http://www.hobbydirekt.de/product_i...oducts_id=82242

Israeli dealer
http://www.helicenter.co.il/product...k1lp3houtsr50m1

Robbe online store
http://at.robbe-online.net/rims_at.storefront/en

RCMarket and it seems they have them in stock
http://www.rcmarket.org/s4000-s5000...-c-124-p-5.html

Regards Bo

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01-26-2009 06:00 PM  9 years agoPost 98
Fixit

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UK

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Hi j.8
Midland and RC Market stock the new version.

Markus is very kindly sending me the new black version to try on the Futura that RC Market assure will work.
I'll report back when I've tried it out.
Fixit

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01-28-2009 05:36 PM  9 years agoPost 99
erichevy

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Zevenhoven The Netherlands

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Hi Peter,
I have flown my Futura gasser with both types of clutches.
The stock 40mm and the heavy duty 43mm.
The one which is in my heli rightnow is the 40mm clutch and
I felt no different with the 43mm HD.
Btw, the "stock" clutch now is 43mm, I have the older 40mm size.
..
What is the inside diameter measured in your clutchbell Peter?
A 40mm clutchbell inside of the (used)liner measures 39,85mm
And a 43mm clutchbell measures inside of the (hardly used)liner 43,50mm.
Maybe you're liner is worn?
What size has it? (the clutchbell ! )

Another thing is, I fly my Futura with plenty rpm's, between 1500 and 1600 with 1.80meter rotor.
What rpm's are you running?

Eric.

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01-28-2009 06:37 PM  9 years agoPost 100
Fixit

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UK

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Hi Eric

The Futura clutch measured 42.92 and the bell was 43.33, I didn’t use a governor and it wasn’t in the air long enough to measure the head speed so I’m not sure what it was.

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