CARS & detail

Particularly invention-rich, concerning the designation of its chassis, was Juraj Hudy actually never. And in such a way it also hardly surprises that the first burning he route car was marked directly with NT1 (Nitro-Touring-1). However the planning and development of each chassis become clearly more aufwändiger. So also those of the NT1, which found world-wide very much Zuspruch at first attempt and since then on successful courses steers.

The first impression is called it, is the crucial, which is confirmed also with the NT1. Times apart from the attractive packing there is above all the worths those convinces. Before with the assembly one begins, it is worthwhile itself to study with a capuccino the documents printed usually on art paper. Beside the current catalog, a detailed spare and Tuningteileliste with exploded view as well as the Setupsheet, above all the excellent colored assembly instruction and the Setup Book are to be mentioned. The latter concerns itself in detail with the meaning and effect of all adjustment possibilities some route car chassis, in particular the NT1, to offer has - fantastically.

NO miracle
In order to take it in front, also Jurai Hudy no miracles know to achieve or the wheel again to invent. But despite numerous agreements with other makes the typical XRAY nuances are unmistakable. The assembly begins, as with most chassis, with the Differenzialen, in our case two classical Kegeldiffs. Remarkably here the extremely compact dimensions and the careful processing of all individual parts are - a fact, which by the way like a red thread draws itself by the entire sections. To the component system 80.000er-Öl for the front Diff and 60.000er for in the back are attached. This appears in the first moment too much, proves however in practice as appropriate. The explanation for this are the small Differenzialzahnräder, which less resistance develops than with larger Diffs.

The sealing takes place via a very thin and sensitive O-ring, which should be treated with appropriate care. Alternatively the gear wheels can be replaced in front also by a plastic right parallelepiped. Thus one keeps and without auxiliary costs a Starrachse fast. The structure of the traditional three-belt drive effected on a 3 millimeter thick chassis from high-quality 7075-T6-Aluminium, whose chamfered edges and ventilation openings stress the quality of workmanship underneath the engine additionally. The structure in principle of front and rear axle corresponds for years to the unchanged system of all manufacturers whether 1:8 or 1:10. This means pivot ball hanging of the wheel and steering arms at double wishbones, adjustable Messerstabi in front and Drahtstabi in the back as well as eccentric Differenzialaufnahmen for the adjustment of the tension of belt and carbon fiber absorber bridges. Also the roll center at both axles can of course be changed owing to different plastic sleeves. However the NT1 differs in many small details from the competition.

Components
There only once the choice of materials would be to be called. Particularly with the plastic the Hudy team accomplished innumerable tests, in order to find the correct composition. The result are extremely form-stable and durable Composite parts with a high glass fiber portion, whose Design and dimensionings were carefully computed. With the metal parts either Swiss becomes quality aluminum or, as however with the drive shafts, wheel axles, the Differenzialausgängen or the measurer stabilizer, which use notorious Hudy spring steel. Points can the NT1 also in things operation smoothness. The consequence from rubber-sealed light run ball bearings, narrow belt, low-loss plastic gear wheels and the small mass (Differenziale), are an all-wheel drive running easily from the component system, which brings each viewer to being astonished. Apropos small mass: Contrary to all other manufacturers XRAY practically completely does when the assembling of the gear wheels without the use of aluminum photographs. With the NT1 the gear wheels are locked simply with a steel pin and fixed to a C-Klip on the wave.

On the part of the transmission no way leads past the established two-cheek system for the moment, which is used also in this case. Worth mentioning are however again the good processing and fit as well as the extremely sturdy gear wheels. So far singularly those are much are enough two-piece engine supports, with which the lower half with the chassis and the upper are firmly connected with the engine. Both are united afterwards with two M3-Inbusschrauben, whereby a steel pin takes over the guide roller. This system makes simple and fast removement and replacement possible of the engine, without having to concern itself each mark with the adjustment of the pinion play. During exact view it is noticeable that for this also no long holes are present. Now, with the NT1 the distances between pinions and gear wheels are practically always equivalent, independently of which reduction is selected. This is reached by different tooth profiles and so can, by the existing play when assembly assembling of the engine, the fine tuning be only settled.

Absolute new fact
Which with electrical RC Cars since long time a topic is, so far hardly attention found with verb racers. The speech is from the Flex, thus the twisting ability of a chassis. Jurai Hudy could be here completely inspired from the success model T2 ´007 and the Flex principle to the NT1 to transfer. The standard chassis has relatively much Flex. By means of an optional mono engine support with additional attachment bars the chassis in a first stage can be reinforced. Four small carbon fiber props, two to the rear Bulkheads and two the further direction the Empfängerakku lead, make a further reinforcement possible of the chassis unit. Thus one achieves a completely new set UP method for accurate adjustment to the distance characteristic.

To the 2-Millimeter-CFK-Radioplatte are as usual installed the RC-components and the tank. The latter convinces by the perfect processing and the large high-speed tank lid. Depending upon assigned Empfängerakku, the height of the tank positioned over it can be varied and the emphasis additionally be optimized. Since we of emphasis to speak should one also mention that the entire radio plate is below installed already 8 to 10 millimeters than with most comparable competition models.

Thus an accordingly low situation of the Servos, which find steady stop by means of the extensive adapters, results all the same which make it concerns. To the scope of supply belong likewise an aluminum Resorohr owner inclusive spring steel wire, different servo horns for steering element and gas/brake as well as all necessary small articles to the production of practical controls. For a vehicle of this class rather unusually, but quite meaningfully, the standard box is for the admission of the receiver. A small rubber cap in the cover permits the fast access to the quartz, without for this each mark the box must be screwed on. The receiver should be rather kleinformatig, since otherwise the installation, in particular in connection with a switch, becomes to the challenge.

Without diligence no price
The assembly of the NT1 as diligence work to designate borders already on offense. In Ernst, the assembly on the basis the first-class building guidance is a true joy and can easily on one weekend be settled. Outstanding register accuracy and quality place even inexperienced mechanics before no difficulties and guarantee a chassis functional low-friction at first attempt and. As used one should have appropriate tools, which win particularly when screwing in into the quite hard plastic at meaning. Up to a few little things (see Montagetipps) no characteristics are to be considered to hold except itself when the assembly and adjusting the clutch exactly by the operating instructions and the chassis before the first employment, preferably with a set UP system to adjust.

Keep on racing
After 5 litres muddled Sprit and three different distances one can speak indeed of a test. Begun of Kirchhain over Lahn valley until Luxembourg we tested the NT1 on heart and kidneys and no change of set UP omitted. Whether obtained Differenzial, Starrachse or free-wheel, roll center, stabilizer or absorber position, the new Nitro chassis of XRAY always a feedback of the modifications. After building guidance prepared the Differenziale, in connection with the standard feathers/springs, proved as outstanding basic adjustment, which serves even team drivers as basis. The adjustable piston plates of the absorbers one adjusted, therefore recommends all too easily we from the beginning the 60's-oil from the component system with the fixed four-perforated tiles in the back and for the three-perforated tiles to in front use. Altogether the performance of the NT1 on highest level moves.

On' s goes: The body provides for sufficient aerodynamics, the tail spoiler presses the rear axle on the soil

Particularly fell the precise and durably evenly switching two-speed transmission and the also problem-free working XCA clutch, which are based on the well-known Centax principle. During the test of several days there was not one defect or loss to deplore. Only three missing teeth at the long belt witnessed from a carefully not adjusted belt tension adjuster. Even the transmission gear wheels, whose tooth loss is with some models true troubles, did not give a reason after employment lasting several hours and appropriate customs traces to the concern. Very pleasing was likewise the condition of the small plastic gear wheels: as new.

And completely besides the plastic parts can be kept also still great clean, which one wants more. All critics to the defiance, even with thorough view we can certify the NT1 only good ones, partly even Bestnoten. That CVD drive shafts were blocked in front and aluminum wheel drivers not in series are unfortunate, but usual practice and with the price performance ratio also okay. Desirably it remains only that XRAY is concerned with the construction of new absorbers. A statement on this topic finds it in this booklet under the column scene

Words and photo: Francois Legrand


Front and rear axle are in series equipped with extremely compact Kegeldifferenzialen. Replaces one the bevel gears of the front Diffs by the small plastic right parallelepiped receives one a Starrachse


Exclusively - the different metal parts from Hudy Ferderstahl and rubber-sealed light run camps are expression of the special one


The CFK parts are carefully finished and in particular the absorber bridges sufficiently dimensioned. The Akku mounting plate is offered as option, in the component system is selbige made of plastic


The later worked on brake eccentric cam was easily abgefeilt, in order to prevent a sharpening of the brake disk


The XRAY XCA clutch which is based on the Centax principle pleases by the quality of the components and the perfect function. In the foreground the yellow Tuningbremsbelag is to be seen


XRAY sets further on the long-proven absorbers with plastic housing. Unfortunate, we had expected nevertheless finally new models, which are worthy the XRAY requirement


The glass fiber portion of the Composite plastic parts ensures a high rigidity.
The tension of belt can be adjusted at both drive units problem-free.
The gear wheels are by means of a split pin and
C-Klipsen on the wave fixes


The two-piece engine supports are a new fact and make possible fast removement and replacement of the engine, without having to adjust the teeth profile play again each mark. In addition with the optionally available Flex Motorbock the rigidity of the chassis can be affected


The NT1 is pure competition equipment. The finished chassis does not only work nobly, but is from highest quality


Winning combi nation: REX engine by MH-Tuning and the Resorohre of Mielke

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CARS & detail