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HeliHobby . Ron’s HeliProz South . Century Helicopter

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Henseleit 3DNT - Rocket - 3DMP > 3DNT questions
 
 
Carps
Veteran
Location: Caterham, Surrey, England

Prepare for a barrage of questions...

What engines are you 3DNT pilots using ?

Any pros/cons to your particular installation ?

And if you are using the OS91, are you using the Loterrle carb ?

Anyone got a governor fitted ? Is there room ?

What servos other than 9206s are being used ?


Thanks
10-11-2002 Over year old.
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Kurt
Heliman
Location: Munich, Germany

Carps,

>>What engines are you 3DNT pilots using ?
OS91FX

>>Any pros/cons to your particular installation ?
runs very well

>>And if you are using the OS91, are you using the Loterrle carb ?
yes, with 7,5% nitro and 15% carbulin oil

>>anyone got a governor fitted ? Is there room ?
enough room, but I don't use it.

>>What servos other than 9206s are being used ?
9206 are perfect. After all the problems with digital servos, I don't use digital any more.

Kurt
10-11-2002 Over year old.
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Carps
Veteran
Location: Caterham, Surrey, England

Thanks Kurt.

Anyone using anything different ?

Cheers
10-12-2002 Over year old.
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DangerousDick
Veteran
Location: Cheshire, England

I'm using the OS91 with reverse crank and Lotterlle carb - runs excellent, and cheap on straight fuel.

Using the 9206 servo's as recommended and so far cannot fault them for this particular application.

Was about to try a govenor but last week I lost the gyro through the blades following a recovery from a death spiral (inverted) - you can imagine what happened next so after spending all my cash on repairs the govenor has taken a back seat for now. There isn't much space, but everything will fit in nicely.

I spoke to Yan at the 3DMasters this year and his opinion is that you don't need the govenor on this model as there is so much torque from the engine it doesn't take a real expert to set the right curve to 'fly it through' instead. I suppose it's the same with any other model - you can spend the time setting up but fit the GV and forget the throttle curves and you can spend more time 'enjoying' yourself.

I know the Lotterle carb has had some bad press in certain areas but I can assure you that mine has worked impeccably from the start and I wouldn't change it for the world

Cheers
Richard.
10-12-2002 Over year old.
 
 
Kurt
Heliman
Location: Munich, Germany

A word about the Loetterle:
In Germany we buy OS engines, remove the original carb and mount a loetterle. It is really worth the extra money if you fly with little or no nitro. The OS carbs work well with15-30% nitro but not below. The loetterle is specially designed to run with almost no nitro. The reason to do it is that nitro is extremely expensive here. After a few gallons the loetterle is paid.
I believe the bad press about the loetterle comes from people who try to run this carb with 30% nitro. It is not designed for that.

Cheers,
Kurt
10-12-2002 Over year old.
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benben
Senior Heliman
Location: earth

I am using an OS 91SX with reversing crank and a Hyperhead instead of the recommended OS 91 FX . I also use an OS 60B carb from the OS 60 WC.
10-14-2002 Over year old.
 
 
squirrel
Veteran
Location: South Whitley, IN

Kurt>>>

The lotterle carb does not run very well for me. 0% nitro and 12% oil. I had to use nitro to get to run better. I would reccomend a different carb/engine combo. Their is no way to contact Lotterle to find out how to tune the thing, so forget it unless you can read german.

I suggest the GV1 because it will be extremely smooth. The magnet mounts on the fan.

The 9206's are an exellent choice, they are almost as accurate as the digitals and you can fly all day without recharging. I am selling all of my digitals and going to the 9206 exclusively.


You will love the way it flys, It rolls like an Extra 300. Rolling circles are VERY easy with this bird.


Fred
10-14-2002 Over year old.
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Carps
Veteran
Location: Caterham, Surrey, England

Thanks for the info so far.
Looks like a GV-1 and 9206 servos are a good choice.

Anyone using the Webra 91 though ?
Anyone run anti-clockwise (and run other helis clockwise) ? If so, how long does it take to get used to it and is it fairly natural switching between the two ?

Thanks again
10-14-2002 Over year old.
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Gero Adrian
Heliman
Location: Stuttgart, Germany

Hello squirrel,

maybe you should change your needle in the carb, for the various type of fuel. Default is the 2°, runs great for typical 5% CP, for the 0% with less oil you should increase to 1,50° - if you want to use e.g. a 12 % CP a 2,5° works better.
I've tested a lot with several needles, Jan's standard (0% Nitro) works great with the 10mm Lotterle - I prefer the 11mm one with the 2mm needle and a fuel with 5% Nitro plus 12% - smooth running, but the Webra is (for me) the better one. Problem - availability

Best regards

Gero
10-15-2002 Over year old.
 
 
3DPP
Senior Heliman
Location: Vienna/Austria

Hi Carps
I use a Webra 91AAR,this one is good for hot stuff,my main rotor is runing ccw .
It is my only one at time,all my other heli are running cw.
Is not a big problem for me because all the time I had one ccw,but if you flew all the time a cw it may be a big trouble.
The difference between you can only handle by learning and training some off the maneuvers new,than the natural switch is coming. But not an easy way.

peter
10-15-2002 Over year old.
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Carps
Veteran
Location: Caterham, Surrey, England

Done deal

Ordered today.

3DNT
Webra 91AAR clockwise rotation
Hattori 700
9206 servo swash servos
9205 throttle (overkill, but I wanted the speed )
GV-1 (why I wanted the speed )
GY601 gyro
Razor 710 blades

My allen keys are twitching in anticipation
I've even updated my sig in anticipation...
10-17-2002 Over year old.
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squirrel
Veteran
Location: South Whitley, IN

did you order the starter adapter ?


squirrel
10-18-2002 Over year old.
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Carps
Veteran
Location: Caterham, Surrey, England

Start adapter

Yes, I ordered one. That is the only pain. I believe it clamps on to the starter motor as does my regular starter shaft. Now do I get another starter and leave the shafts permanently attached or arse around swapping them each time ?

Oh well. There had to be some hitch to owning a bloody nice heli
10-18-2002 Over year old.
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acme
Heliman
Location:

check it out.

http://home.netvigator.com/~cheukyw



acme
10-18-2002 Over year old.
 
 
squirrel
Veteran
Location: South Whitley, IN

That is one obstacle, if you are into 3D style of flying I WILL PROMISE YOU THAT YOUR OTHER HELI WILL SIT ON THE SHELF. I felt the same way until 3D NT was running good. Now even the Sceadu 50 is dog!!! It is a very hight quality attachment, the positive side is that you only have about 2 1/2 inches protruding fromt the starter.


Fred
10-18-2002 Over year old.
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Frantic
Heliman
Location: The Netherlands

Squirrel is right. You don't need another starter as you will not be flying any other chopper once you've flown the NT. Welcome to the club.
10-18-2002 Over year old.
 
 
Carps
Veteran
Location: Caterham, Surrey, England

For sale... Sceadu 50, Voyager IMZ



Just joking. Well, about the Voyager anyway - I was thinking of maybe losing the faithful old Sceadu though
10-18-2002 Over year old.
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cos55
Senior Heliman
Location: blackpool, U.K. (Seattle) when I can!

3 DNT

I think you will love your NT

I'm up here in Blackpool and have the only one around here

It really does go well

Mine has the OS engine from revolution models


Carl
10-19-2002 Over year old.
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quark3DNT
Heliman
Location: San Jose, CA

Carps,

What engines are you 3DNT pilots using ?
OS 91FX right hand rotation

Any pros/cons to your particular installation ?

And if you are using the OS91, are you using the Loterrle carb ?
Yes. I just recently started using straight fuel and it runs great
12% Klotz Heliglow
88% Methanol (get the best quality you can find)
Also make sure the felt pendulumn is clean and not gummed up from oil.
I know squirrel had some problems with this fuel combo and the Lötterle but it's been totally find for me.

Anyone got a governor fitted ? Is there room ?
I'm thinking about it but I really have had a need for it as tuning the throttle curve and adding cyclic-throttle mixing gives very good results

What servos other than 9206s are being used ?
9151 digital. They have the same specs as the 9206. 1 tank (15 minutes) is about 250mA, so the digitals don't suck up more power in my setup.

As everyone else has been saying, welcome to the club, you'll not fly any other heli ever again for 3D (but keep another one around in case your 3D needs to be repaired).

Oliver
10-21-2002 Over year old.
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squirrel
Veteran
Location: South Whitley, IN

quark3dNT>>

If I would send you my Lotterle can you put it on your engine to see if it performs the same? Shipping both ways will be paid.


squirrel
10-23-2002 Over year old.
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