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GrandRC . CanoMod . Futaba-RC

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Henseleit 3DNT - Rocket - 3DMP > 3DNT - Whant to order one but please help
 
 
nocontrol
Veteran
Location: Cape Town, South Africa

My friend and I WERE interested in buying Fury Extreme’s until I saw the 3DNT. Please advice to the following as there are none of these products here in South Africa. I am currently flying The Vigor CS with OS91 C-spec. I here only good things about the 3DNT heli and want to buy it for extreme 3D. Parts is “no” problem seeing that I would have to import parts for Extreme and 3DNT – Extreme parts to expensive in SA, 3DNT not available in SA.

1. I like/love the overall design but see that the boom supports do not make as big a triangle as on conventional heli's. I only use Futaba 601 gyro. Is the tail as rigged as on my CS? (I see on Classic the triangle is bigger, so questions on Classic later)
2. I had a boom strike on my Voyager 50. The NT's head is very low - any problems with boom strikes?
3. Is there any difference in the flight characteristics in the "wrong" way turning head other than that it hangs to the other side? - I would like to run the motor the std. direction.
4. Can I use the OS 91 C-spec?
5. Regarding the 3DNT Classic: Will there be performance differences between it and the normal 3DNT or is this purely a marketing strategy? Not being funny in my question - I can understand it perfectly if it is a marketing strategy. If there is no better performance in the Classic I would rather have the normal 3DNT but I do want the best there is available for extreme 3D.
6. Are you sacrificing some performance to suit the crowds with the Classics design or will it perform 3D better than normal 3DNT?
7. Are there more loads on CCPM servo's than on like the Vigor CS? I use Futaba 9252 servos - good idea or not?
8. Any problems with swash only moving half the distance? I am thinking of wear/slop – will the same amount of play on links create double the play/ slop on this head design?
9. Durability????

I am itching to place an order but this is such a radical change that I need to do some homework first.
If everything is true what I read I think I will be very happy with this heli.
07-28-2003 Over year old.
HOMEPAGE  
 
 
Carps
Veteran
Location: Caterham, Surrey, England

1/ Can't answer as I have never had a Vigor CS, but the tail seems pretty good to me. I have owned the Sceadu, Voyager 50IMZ, and the Robbe Futura Nova, and it is certainly no worse than any of these. I too use the 601.

2/ Never had a boom strike on my 3DNT

3/ Apparantly they lean the other way - ie, right hand rotation leans to the right in a static hover, left hand rotation leans to the left. Obviously with the blades spinning the other way the heli is going to be more keen to turn in the opposite direction, and will perform rolls/flips/piros easier that way too.

4/ If you go with left hand rotation, the only sticking point will be the crank, and the head won't be correct for the cooling shroud. However, you can now order a C-Spec HGL which will sort out those problems

5/ The Classic was produced to help out people who couldn't orient on the proper 3DNT. It is a little more rigid in the frames too, and theoretically the tail should also be more rigid. Almost all parts except the frames, canopy, and skids are identical to the 3DNT.

6/ I don't think there is much in it.

7/ No. The biggest problem with the NT control system is that if you have a heavy auto there is a lot of weight and momentum in the flybar assembly and with plastic geared servos you may well find them stripping more often than normal. I use 9206 in one NT and have replaced gearsets on the swashplate servos twice. I use 9350 in the other and, fingers crossed, have not replaced any yet.

8/ No.

9/ The only part I have had to replace due to wear so far are the two bearings that stop the belt skipping off the tail pulley. I believe this was my fault too as they aren't supposed to touch the belt normally, but I think mine may have been.

Good luck
07-28-2003 Over year old.
HOMEPAGE  
 
 
nocontrol
Veteran
Location: Cape Town, South Africa

Thanks for the reply.

1. With CS and 601 I can go up high and let the heli come down tail first (?tail slide?) Only when pulling out at bottom to go into backwards flight do I have to “fly” the tail a bit. Can you compare this to 3DNT?
2. What is a C-Spec HGL?
3. This might be a difficult one but can you comment on the Tornado v/s 3DNT. I see you fly 3DNT, any specific reason for it? I see the Tornado still have a washout assembly hence the load is same on the CCPM servo’s as I am used to but the “sliding flybar” may be a more stable setup??????

Sorry for asking so many questions but it is very difficult to make a choice if you can not see either one of the two in the flesh.
07-28-2003 Over year old.
HOMEPAGE  
 
 
yapjy
Key Veteran
Location: Singapore

Sorry for jumping on here.
I was wondering must the 3DNT take off from grass field?
This is because I prefer to take off from concrete field. I don't like to see my tail blades cutting grass.
07-28-2003 Over year old.
 
 
Carps
Veteran
Location: Caterham, Surrey, England

more answers...

1/ I do tail slides with mine and it all holds beautifully to the point where I lose my bottle and spin her round. Continuing in high speed backward flight is a bit beyond me at the moment
2/ The C-SPec HGL is the C-Spec with the Heim crank and the big head, as per the regular OS 91 FX-HGL. Check it out at Motors and Rotors
3/ Can't comment...

Regarding taking off from hard surfaces, I have never tried but I have heard it can be quite exciting. The recommendation for taking off from hard surfaces is to get in the air ASAP (at around 800 RPM IIRC) as the size of the undercarriage can lead to problems as the blades spool up and find their positions.
BTW, the tails shouldn't cut the grass as it is well protected by the vertical fin, and the attitude of the u/c means it is quite high up in the air anyway
07-28-2003 Over year old.
HOMEPAGE  
 
 
nocontrol
Veteran
Location: Cape Town, South Africa

Thanks all. We ordered:
2 x 3DNT (right hand) + webra + pipe (Cyberheli's combo)
6 x 9350 for CCPM (Stephen exchanged the servo's for us free of charge)
2 x GV-1
2 x 601 + servo
2 x starter adaptor

08-18-2003 Over year old.
HOMEPAGE  
 
 
yapjy
Key Veteran
Location: Singapore

That's great!
Met Stephen in person. I'm saving to get a 3DNT.
08-19-2003 Over year old.
 
 
DrBech
Heliman
Location: Odense Denmark

How about spareparts, I have the same strugle - in Denmark parts for the Fury are all available at all times. Nobody even knows what a 3DNT is.

It looks like its a one man shop - Will Henseleit be in business with spareparts for many years to come ? whats is his financial situation? I've heard that spareparts for the rocket is now allmost imposible to get ?

It the case of David and Goliath - I don't now yet who I will bet my money on. If it was my hart it would be 3DNT - but logicd screams Fury :-)
09-02-2003 Over year old.
 
 
helifever
Senior Heliman
Location: BE-8750

@ Drbech

you got a point there, open a new topic about it

helifever
09-02-2003 Over year old.
HOMEPAGE  
 
 
nocontrol
Veteran
Location: Cape Town, South Africa

For me it will be great news if Jan closes down. I will buy the rights and start manufacturing. (Someone will) Buying a heli is not buying a house or business it is just an RC heli. Buy one man. Do not go and look for problems in such a way. Gee, you might even die before he stops manufacturing or ……….. or ………… or ……….. or ……….. So many things can happen in life. If you want one and you have the $$$ buy it.

Worst case scenario: You buy today, he stops tomorrow, life goes on. Just think of it then no one at your club will ever have the same as you (new that is)

Glass half empty …… Glass half full

I have seen it happen to often that people say “not now” or “what if” and a few years later “I should have …”
09-02-2003 Over year old.
HOMEPAGE  
 
 
DrBech
Heliman
Location: Odense Denmark

Are buck off :-) I'm not trying to be in total control - I just want to have it verified - is it allready imposible to get spare parts for the rocket or is that just a duck ???

Besides here in Denmark after paying 65% in tax and paying 25% import tax (allso on choppers) and the fact I don't have an South african goldmine in my backyard - I think its better to be in some control than in NoControl !

hehe
09-02-2003 Over year old.
 
 
DrBech
Heliman
Location: Odense Denmark

One question nocontrol, where did you purchase your 3DNT and where do you get the spares, I guess I would go the same places as you, as no helidealer in Denmark wants to touch the 3DNT for a one time sale - I know of only one 3DNT in Denmark !
09-03-2003 Over year old.
 
 
nocontrol
Veteran
Location: Cape Town, South Africa

DrBech

He He He - I enjoyed that one.
I bought from Stephen at Cyber Heli The help and advise he gives is very good. Will send you an e-mail with some info.
09-03-2003 Over year old.
HOMEPAGE  
 
 
Pascal
Senior Heliman
Location: Paris, France

Hi,


Being located in Europe, you could also contact Jan Henseleit directly, and he will take your order.
This is what I did few months ago as well as some friends here around Paris. He provides excellent service to his customers. Most of us bought all the electronic, servo, gyro,... from Cyberheli.
But import taxes are 0 from Germany, and 28% from Hong-kong...

You can also contact http://www.revolutionmodels.co.uk/ which resell them in UK.


To say the least you will not be disapointed by this helicopter.

Happy flying,

Pascal
09-03-2003 Over year old.
 
 
DrBech
Heliman
Location: Odense Denmark

Thanks Pascal

Ahh nocontrol we all enjoy a good spanking now and again :-)

Great stuff, I have allready sent Henseleit an e-mail, I think I will drive down and visit him (only 700km) Maybe take one home with me.

Is the Webra performing allright ?
09-03-2003 Over year old.
 
 
Stephen
Senior Heliman
Location: Hong Kong

DrBech,

Talk to Benthe at Rotordisc, she should have the channel to help you out.

We are just a little guy across the pond BUT support from Jan himself had been fantastic. We almost never have enough 3DNT to sell



Stephen
09-04-2003 Over year old.
 
 
DrBech
Heliman
Location: Odense Denmark

Thanks Stephen,

I was at Bentes shop yesterday, her policy is only to sell models which she later on have spareparts on stock for (fair policy) - and her shop is amazing when it comes to spareparts...

So instead I really hope that Henseleit gives permission for me to drive down to his shop...

Or I will order one from Hong Kong :-)

Your kit looks contains what I want anyway.


Whats the difference between right or left rotation ? I mean the anvantages of purchasing a model/engine which has a different rotation then the rest should be relative big as that engine only can be used with a 3DNT...
09-04-2003 Over year old.
 
 
Pascal
Senior Heliman
Location: Paris, France

Right or Left, that is the question...

It just depends on your way of flying, most helicopters, except Varios turn right.
So you do not noticed it any longer, but when ever you take off with a rotor turning right, you have to tilt your helicopter to the right to compensate the thrust of your AC rotor so that it does not slides to the left while hovering
Take an heli which rotor turns leftward, you will have to tilt it to the left.
Easy, yes while hovering, but this "side" effect is particularly present when you do accrobatics and 3D manoeuvers.
So if you are used to helis which rotors turn rightwards, you do not want to change. This means that with a 3DNT you have to use an engine that turns backwards.
09-04-2003 Over year old.
 
 
Stephen
Senior Heliman
Location: Hong Kong

DrBech,

Forgot to ask you to say hi to Benthe for me :-)

I am quite sure Jan will support you with parts wherever you buy HIS heli. We are a legit dealer for him anyway.

The trick with the Webra engine is in the crankshaft. The NT requires the engine to turn in the same direction as the rotorhead so a special crankshaft is made specially for this purpose. If you later on wants to use the engine in a regular heli with engine and head running in opposite directions, just get a regular crankshaft and the engine can be reused.

Stephen
09-04-2003 Over year old.
 
 
Andi G
Veteran
Location: Switzerland

Hi,

you need the Henseleit starter wand then, it can be modified (means assembled the other way round) to work with the reversed engine.
And you have to reverse the starter, which sucks if you want to fly with a normal machine and then with the nt again - you always have to change the one way bearing in the starter wand.

Regards,

Andi
09-04-2003 Over year old.
 
 
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Henseleit 3DNT - Rocket - 3DMP > 3DNT - Whant to order one but please help
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