My youngest son (9 years old) had a cheap Wally World Grave Digger R/C Monster Truck that gave upper the ghost. We modified that bad boy. We exchanged the stock 600 Brushed motor with a Outrunner I had in the Goodie box, modified the front steering with a 3004 Futaba Servo with ball joint tie rods, 50 amp esc (I have to order one with reverse) a 3s1p 2200 30C Lipo (fit perfect in battery box) I used a Hobby City (Orange RX) & my DX7. I runs like. Raped Ape now!!! I thought him how to solder wires (not to shabby for the first time) and use shrink wrap & how the wiring and RX worked. It has so much power now that a full throttle the not so soft tires spin even while going flat out. (More power than traction) Did I mention how much fun we had making "Super Grave Digger" together. He now wants a "Baja Bug" he saw in the Tower Catalog. We might get a couple so we race.
This makes me happy. Good to see people spending quality time with their kids and both of you enjoying it. Plus you got his brain working too. PLUS you got a sweet modded truck out of it. Was a good day it would appear!
Couple of my old flying buddies back in England used to tow a small glider up using a RC panel van. No idea on the van's spec, but the glider was around 36" span, lightweight two channel. The towline was a length of thin fishing chord, around 100 feet long, tied onto the back of the truck, with a loop to fit on the glider's towhook.
They'd set the buggy off upwind until the glider end of the line was at their feet. Hook up the glider, take up the slack by powering up the truck, then the glider pilot would take a few steps to give the glider some airspeed while keeping the line taut before letting it loose. It would climb to almost atop the RC van, then the pilot would dive to slack the towline and pull off to fly around some.
The truck driver would do a steady, wide turn so the tow line followed the truck in a circle, back downwind past himself and another 180 around his feet so the truck could pull the line out upwind again in time for the glider pilot to do a hand-catch landing and be ready to go again.
Saw them do this at model meets with all sorts of other categories of models - they always brought the house down, it was so much fun to watch.