Dave,
Sortie 8 was the first solo on the Gnat at 4FTS Valley. I regret that I don't know on which sortie current Hawk students first solo. My own Hawk convex was at the TWU and took 2 duals before solo but I was already instructing and current on the Hunter. Hopefully someone else can give you the normal solo time for ab initio students at Valley. I would be surprised if it was not muchquicker than the Gnat where the leap from the Jet Provost to the Gnat was quite eye-watering; I am sure that the transition from Tucano to Hawk was much less traumatic.