For anyone following this thread and intending to use it for long range IR battling, I've found two things:
1. In stock setup, the barrel doesn't depress to horizontal. For short range battles this is not so important, but at long range it "shoots high' and will miss a low sitting tank. I had to remove 1/4 inch from the elevation motor mount to change the geometry so it can lower to horizontal or even a degree or so more.
2. The aftermarket recoil unit by Rich Johnson did not fit. This is because the Tongde geometry between the gun mount and the elevation motor is not the normal relation found in other tanks. Perhaps others could make it work, I just didn't see how.
I'm not sure why these quirks are there. It may be because the turret is by far the shallowest I've seen. Anyway, the tank is modified for long range shooting, but it took work.
One other thing; the stock IR emitter is in the box mount over the barrel. Per #1 above, the barrel elevation partially blocks the IR beam. Also, the stock Tongde bulb has about a 30 foot range on a cloudy day. I put a high power IR bulb in the barrel instead.
1. In stock setup, the barrel doesn't depress to horizontal. For short range battles this is not so important, but at long range it "shoots high' and will miss a low sitting tank. I had to remove 1/4 inch from the elevation motor mount to change the geometry so it can lower to horizontal or even a degree or so more.
2. The aftermarket recoil unit by Rich Johnson did not fit. This is because the Tongde geometry between the gun mount and the elevation motor is not the normal relation found in other tanks. Perhaps others could make it work, I just didn't see how.
I'm not sure why these quirks are there. It may be because the turret is by far the shallowest I've seen. Anyway, the tank is modified for long range shooting, but it took work.
One other thing; the stock IR emitter is in the box mount over the barrel. Per #1 above, the barrel elevation partially blocks the IR beam. Also, the stock Tongde bulb has about a 30 foot range on a cloudy day. I put a high power IR bulb in the barrel instead.

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