Suggest you post this on trailersailerplace if haven't already
trailersailerplace.com.au/phpBB3/

And then here should get some good answers
investigator563.com/Forum/viewforum.php?f=4&sid=0a2b275f6a194b0cb033ce656677d335

Heaps of good information on the 563 here you have presumably seen
www.johncrawfordmarine.com.au/investigator-563

Info on the Payne 5.5m is scarce - there is a very nice looking one for sale (in NSW) on boatsales maybe you are looking at that. Boatcraftnsw should be able to put you onto existing owners?

Both were designed by very good designers. The Payne is a bit more recent design, a bit lighter and with 22% more working sail area. Possibly more maintenance but being strip planked cedar and epoxy sheathed if suitably cared for and two pack polyurethane paint coated will last well especially if being usually on a trailer under cover or in a garage.

Depends on what you want to do with it. I would expect the Payne to be faster upwind and down. Putting the kite pole on the foredeck 1.25m stuck out from the boa as an asymm kite prodder would work well.

MAGNESIUM said..
Is anyone familiar with David Payne designed trailer sailors and could give any information on how good or bad they are, also any advantage or disadvantage over a fibreglass trailer sailor like an investigator 563.
www.boatcraftnsw.net/_files/ugd/f21cdb_fe6521b3b4dc4911a65351199096d794.pdf

I don't know anything about the David Payne trailer sailor. The Investigator is quite common though and by all accounts a nice little boat. They are very small though. Trailer sailors in the 18 foot size range are going to be cramped and I reckon a daysailer that size with a tent is a better option. Or a trailer sailer like this one for sale locally for a third the cost of the flash Payne 5.5 for sale.
www.facebook.com/marketplace/item/236036005789621/?ref=saved&referral_code=null

These sail extremely well and have fairly comfortable interiors and not too much windage for easy retrieval at the boat ramp.

Ramona said..

MAGNESIUM said..
Is anyone familiar with David Payne designed trailer sailors and could give any information on how good or bad they are, also any advantage or disadvantage over a fibreglass trailer sailor like an investigator 563.
www.boatcraftnsw.net/_files/ugd/f21cdb_fe6521b3b4dc4911a65351199096d794.pdf

I don't know anything about the David Payne trailer sailor. The Investigator is quite common though and by all accounts a nice little boat. They are very small though. Trailer sailors in the 18 foot size range are going to be cramped and I reckon a daysailer that size with a tent is a better option. Or a trailer sailer like this one for sale locally for a third the cost of the flash Payne 5.5 for sale.
www.facebook.com/marketplace/item/236036005789621/?ref=saved&referral_code=null

These sail extremely well and have fairly comfortable interiors and not too much windage for easy retrieval at the boat ramp.

A Great Buy for a 22ft Timpenny.... Ideal for coastal cruising, up the East Coast.

Cheers