Pictured: Josh Poullet stretches for the ball at the front of the lineout.
Winger Anthony Armstrong scored a hattrick, and there were also tries from Jack Colbourne, Tom Ceillam and Ethan Smith.
Ciaran Mcgann slotted five conversions.
Pictured: With Havant players trailing in his wake, Anthony Armstrong crosses for a first half try.
It was a pleasing way to start a challenging run of fixtures after postponements last year and two away losses and keeps Raiders firmly on course for their targetted top six spot.
Pictured: Havant scrumhalf Ben Holt kicks from the base of the scrum.
They are fifth in National 2 East, three points off Canterbury in fourth spot but with a game in hand.
Raiders play Canterbury away on Saturday.
Sixth-placed Bury St Edmunds lost further ground after a loss at Oxford Harlequins.
Ongoing cold weather in England meant league leaders Tonbridge Juddians clash with Sevenoaks was postponed, while second-placed Barnes were comfortable bonus point winners at Colchester.