Home
 
 Approach Eng
  Product List
   AH-64A Apache 50
   AH-64A eApache
   AH-1F eCobra
   Tail Drive Adapter
  Manuals
 Manufacturers
  Baumann
  Cine-Scale
  Helitronix
  Jakadofsky
  JMD Models
  Jomar
  Len Mount
  LHC Hobby
  OF Helitechnik
  RC Gear
  Super Scale
  Starwood
 Quick Links
  Promotions
  Rivet Kit
  Painting Jig
  CS Lighting Kits
  SLS Lighting Kits
  Videos
 
 
  > Approach Accessory  >  Tail Belt to Shaft Drive Adapter Kit  Printable Version


Tail Belt to Shaft Drive Adapter
AP200

This adapter is designed for a Raptor 30~50, JR Airskipper, and Trex 600 glow mechanics and includes the short belt that drives the tail from the main gear, identical to the sport setup. The adapter drives a set of strong bevel gears which transfers the tail drive to the bottom of the mechanics and provides a 5mm take-off shaft to make the connection to Approach's flexible tail drive shaft.

AP200  Tail Belt to Shaft Drive Adapter Kit  $149.96 

:: overview:: includes:: browser  

When you first start working on the adapter, there are a few key areas that you need to pay attention to ensure the adapter is correctly assembled. Put together the sub-assemblies first by installing the pins in the gears to position them on the shafts, make sure you position them correctly as the large gear is mounted on the vertical shaft and the small gear is mounted on the horizontal shaft. As you put together the sub-assemblies into the side frames, it is paramount that you build the adapter on a flat surface to ensure that the sideframes and all the bearing blocks are properly aligned. This is the most common reason parts don't fit together well and beginners have problems.

To use this tail drive shaft adapter, you will also need a shaft driven tail gear box. Many modelers have asked whether their existing Raptor tail gear box can be adapted to use an input shaft and bevel gears. Approach Engineering has successfully done this and lists the conversion parts necessary in the manual. In general, modelers should consider using 30-50 size shaft driven tail gear box commonly found on many sport helicopters. Unfortunately, it is commonly cheaper to purchase an entire sport model than to purchase a tail gear box piece by piece. Either way you manage to get your hands on a shaft drive tail gear box, make sure you properly assemble and run-in the mechanics with the tail gearbox on a sport model or in the fuselage.

We prefer to run at least two gallons of fuel through a new mechanics before it is installed into the fuselage. Experienced modelers know that if a problem will happen, it normally happens in the run-in period and making adjustments to any mechanics installed inside a fuselage is normally difficult and can prevent you from solving the problem. We strongly recommend the run-in before it is installed in the fuselage, but this is not always possible.

Metal Components:

Side frames, bearing blocks & steel drive shafts.

Plastic Components:

Glass fiber reinforced tail gears.

Rubber Components:

Reinforced Neoprene tail drive belt.

Documentation:

Construction manual with step by step photographs.

The following photos show a selection of photos to give you a better idea of exactly what you will receive with this conversion kit.

Assembled tail drive adapter without the belt installed.  Assembled tail drive adapter, left side.
Assembled tail drive adapter with the belt but without the short tail boom section.  Tail drive adapter attached to the Raptor mechanics.
Top view of the adapter installed in the Apache just in front of the rear former.  When properly installed, the adapter does not require support to the fuselage sides.
Overall shot of the Raptor installed in a Super Cobra prototype fuselage using the adapter.  Head on shot of the Raptor installed in a Super Cobra prototype fuselage using the adapter.
Right side shot of the Raptor installed in a Super Cobra prototype fuselage using the adapter.