Hi
DS is 14 months old and currently having two naps a day. However the afternoon nap is becoming a battle. He's taking up to an hour to settle. He's not upset, and I don't normally need to intervene, he just faffs about in his cot and is up and down like a yoyo. The problem is when he finally does nod off it's getting very close to 3.30, which is when I try to wake him so it doesn't affect bedtime. We're kind of running out of time in the day for the afternoon nap.
Does this sound like he's ready to drop down to one nap? It's sooner than I expected, as I'd read average age is 15-18 months. And once he's asleep he is dead to the world so it's not that he's not tired. Just not tired in time to fit the nap in!
In case it's useful to know, the morning nap is much better. It starts at 9.30, he doesn't take long to settle, and I wake him at 11am but I think he'd sleep for longer if I left him.
He starts the day 5.30/6ish though (on a good day) so I'm not sure how I could push the morning nap any later if we did drop to one! 
Thanks in advance for any pearls of wisdom.