A couple of things here guys.
TFL is the only company that makes the Zonda. DY Motor shop are an on seller for them just like Banggood and other on sellers.
Other hulls that DY Motorshop sell are also from TFL.
I built up their 33" hull for racing, and called it the 'Maverick'. This was well before Oxidean started selling them as the Dominator. But it is a TFL hull.
https://www.rcgroups.com/forums/show...-Fiber-33-Mono
As for the receiver getting burnt up when a motor & ESC detonates? Yes it can happen. And has happened to me.
When a motor is overloaded to the extent that the windings short out, it creates a dead short across the 3 phases of the ESC.
That creates a huge amp draw that blows the ESC.
During that explosion the BEC can fry & allow the full battery voltage to travel to the receiver.
That quickly blows the receiver electronics, and usually the lead to the ESC too.
This all happens in well less than a second.
Been there. Done that. Got the T-Shirt.
As to why the boats blew up?
We need more information.
What was the depth of the struts in relation to the sponson bottoms at the time?
If they are too low, the props will be too low in the water & cause the motors to pull a hell of a lot of amps.
Was the driving style a lot of stopping and starting? Or long fluid laps maintainig full speed in the turns?
Was the boat running wet? Or well aired out? Running too wet will also dramaticaly increase the amp draw
What battery type, MAH rating, & C rating?
Did you grease the flex cables before you started the runs.
Was one of the red wires in the leads from the ESC's disconnected to prevent both BEC's powering the receiver?
It might have done it in the Y harness.
That should have been done at the factory, but should always be checked in a twin drive boat.
A combination a just a couple, or a few of the above items, can always create a catastrophe.
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