Hi, I'm looking to get into prone foiling and I have 20+ years of experience regular prone surfing and a few years wing foiling experience. No kiting but that doesn't matter because my question isn't about kites its about boards. I'm really lightweight ~58 kg and I can't afford the expensive dedicated prone foil boards out there. Wondering if I could learn to prone foil on a cheaper used kite board. No clue what volume I would need. For reference, I prone surf a 21 L 5'8'' shortboard. Thoughts?

Well kitefoil boards work great for Foildrive so I can imagine they will work ok for prone too.

I have been thinking the same thing. My kitefoil board is only 10 litres and I'd imagine one would need more volume than that.

From what I've read you need around 30 litres to actually be able prone.

A common view is that volume helps. I took an old beat up 6'6 fish and dropped a foil track kit in and glassed it up. There was, maybe still is, a stick-on track available. My step son successfully learned on it. Something about being in my 70's made it feel too small, so I leaned on a wing board. Out of curiosity I put my Foil Drive on it, awesome, felt like a magic carpet!

I can't see it working on a tray though. might need to clarify what you mean by kite foil board? Race boards were huge, and people use homemade trays that barely float the weight of the foil but you would not prone either of them. If it's remotely like a surfboard and got 30l then you may as well try