ChopperAddict's Hints & Tips

   

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      INFORMATION  How to fit the larger RapidCharge Lipos onto an INT 400
  
Because I supply and build quite a number of Interceptor 400's a lot of people ask me if it is possible to fit and use the larger and more powerful RapidCharge 2200 MAh, 25C lipos and similar sized more powerful lipos.

Up until now this has not been very easy, mainly because the canopy supplied with the INT400 is very short compared to other helicopter canopies.

However, I can now suggest 2 different ways to achieve this without very much extra work.

Firstly, I can now supply very nice super low cost plain white plastic canopy that will allow you to fit the larger lipos without much problem at all as they are quite a bit longer.

I can also supply super painted fibreglass canopies that are also larger than the stock INT400 canopy, but for best results you will need to do a small modification to your helicopters frame

Because the Lipo tray on the INT400 is really far too short for almost all lipos, the first thing that I ALWAYS DO is to make a lipo tray extension out of some 2mm Plastikard or a similar material. It is drilled so that it can be held to the forward CNC cross bar just behind the head position on the underneath of the frame, with another pair of holes allowing it to be fixed AROUND the front skid support and the final pair allowing the front of the original tray to be connected as well.  This helps to relieve a lot of the stress on the original lipo tray, which often fracture just forward of the 2 mounting crew positions.

The trick here is to get some 3mm carbon rod (You can often use old boom supports) and then carefully drill a 3mm hole IMMEDIATELY BELOW the Pitch arm pivot shaft (CNC going through frame)  Then pass the 3mm rod through both of the new holes and secure it with super glue.

Trim the rod off on both sides at a suitable length so that it will extend through the canopy when fitted.

Then all you need to do is to drill or redrill your canopy the same distance forward and slightly lower than the original mounting holes, fit a rubber grommet into each new hole, and slide  your canopy up and over the new mounting bar.

This makes the canopy mount in a very similar position to the old standard canopy.
                

This is an original "Canomod" INT400 canopy fitted using the new mounting system

You can EVEN fit the larger Rapidcharge lipos in this with the new mounting.

This is one of my fibreglass canopies fitted using the new mounting system.

A Rapidcharge 2200 lipo is fitted comfortable underneath this

Another view of the one above

A Rapidcharge 2200 lipo is fitted comfortable underneath this

 

This is one of my "deformable" white plastic canopies fitted using the new mounting system.

A Rapidcharge 2200 lipo is fitted comfortable underneath this

 

The only other issue you need to address is the change in the COG of the helicopter due to the weight of the larger Lipos.  Again this is very easily overcome. All I do is to tape 2 1 pieces to the vertical fin somewhere.  These exactly match the additional weight, and the Interceptor 400's COG will again be just perfect.

CLICK HERE to check out my canopy range ... You will not regret it, they are really nice looking too 
           

Here's one fitted to one of my "pre-built" INT400's...

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