I'll add mine, although it is probably atypical of most Springers, and probably not how I would do it if I was doing it again. First, a shot into the innards -
![](https://modelboatmayhemimages.co.uk/images/2020/01/22/P1060787.jpg)
The receiver is lying on the deck and there is no battery fitted. You can see the motor and rudder servo, and the Mtroniks speed controller on the right, with the battery cables disapperaing off shot. There is a connecting block for the cables under the deck right up the front, and it and the ESC are mounted on a ply plate which can be removed by undoing two screws. I fitted two longitudinal rails to strengthen the balsa bottom planks, and the servo and ply plate are mounted on these. The coil of wiring at the top of the picture is for lights and you can ignore that.
Because this was a "make it up as you go along" design, I ended up with the battery slung from a removable plate over the motor. Here's what it looks like fitted -
![](https://modelboatmayhemimages.co.uk/images/2020/01/22/P1060791.jpg)
(The two red pieces on top are twin aerials from the receiver, in case you were confused.)
As I said, not typical, but it works for me. Hope it helps!
Greg