We KNOW she's a Brixham Trawler

http://www.boatsafe.com/nauticalknowhow/gloss.htm

but is "KJ" a

....... 

yacht - boat driven by sails or engines for RECREATIONAL rather than work use.

schooner - ANY fore'n'aft' rigged sailing vessel with TWO OR MORE MASTS

ketch -Sailing Vessel with TWO MASTS; the mizzen mast being forward of the rudderpost.

"Kenya Jacaranda" is most correctly described as a

GAFF-RIGGED KETCH. 

She is NOT a sail-boat, a brig. a brigantine, a yawl, a cutter, a sloop and  SHE IS NOT A SMACK. because by definition a smack has ONE mast. However, fisher-folk, who were long on seamanship and short on literacy, have used the word "smack" to describe all sorts of sail-driven fishing boats for A LONG TIME and we should not upset their memory by being pedantic. So if you meet an old salt who says "Kenya Jacaranda" is a 'smack', smile knowingly and bite your tongue. You may be better educated but he is probably a better sailor. We have researched the Brixham Trawler and discovered that the second mast began to appear at the very end of the 18th century. In the early days smacks were occasionally/frequently CONVERTED to two masts rather than built to specification. This is probably why the word lingered on.

sailing ship? Not really - [WORKING] vessel powered by wind, [usually] MORE THAN ONE MAST

"cutter" - KJ is definitely not a sailing vessel with a single mast set midships or slightly aft

"sloop" - Nor is KJ a sailing vessel single mast set a third of a boat's length aft of the bow

"smack" - a sailing ship (usually rigged like a sloop or cutter) used in fishing and sailing along the coast

"sail-boat, sailing boat" - a small sailing vessel; usually with a single mast. KJ is a large sailing vessel.

"brig"        two-masted sailing vessel square-rigged on both masts. NOW you know something.

"brigantine" - a two-master, square-rigged on the foremast and fore'n'aft rigged on the main 

"yawl" - a sailing vessel with two masts; with a [small] mizzen aft of the rudderpost.

http://www.boatsafe.com/nauticalknowhow/gloss.htm

SOME OTHER DEFINITIONS YOU MAY FIND USEFUL AS YOU GO

boom - any more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring
gaff - spar rising aft from a mast to support the head of a quadrilateral fore'n'aft sail.
mast - a vertical spar for supporting sails
gaffsail - quadrilateral fore-and-aft sail suspended from a gaff

There is a fascinating aside here! Can a mast be a boom? the obvious answer would be No! But on a Brixham Trawler the answer could be yes! Your scribe has seen the for-ard mast used as a boom in Whitstable and Woolwich when a rope was slung from a high point on the mast to the shore. Because Whitstable dries out at low tide there is always the possibility of KJ falling out instead of in. It has happened to OTHER Brixham Trawlers! So our skippers always make sure she falls in by the above method!