2025 Thunder Jet 21 Chinook OS

• Length (hull): 21 ft
• Overall Length (LOA): 23 ft 5 in
• Beam (width): 96 in (8 ft)
• Side height: 38 in
• Cockpit depth: 30 in
• Max persons: 8
• Fuel capacity: 75 gallons (optional 100 gal upgrade)

⚙️ Power & Performance

• HP rating: 150 – 250 HP
• Typical base motor: Mercury 150XL 4-stroke
• Shaft length: 25 in

Real-world setups commonly run 200–250 HP for offshore performance.

Hull & Construction

• Hull type: Progressive Deep-V (TJ-X offshore hull)
• Deadrise: 16°

Aluminum thickness:

• Bottom: 0.190" (5086 alloy)
• Sides: 0.125" (5052 alloy)
• Transom: 0.250"

Build features:

• One-piece bottom + sides
• Full-length stringers & hull stiffeners
• Reverse chine for lift & stability
• Welded keel guard & thru-hull fittings

This is a heavy-duty welded aluminum offshore hull, built for rough water (Columbia River / coastal use).

Standard Features (Key Highlights)Hull & Exterior

• Self-draining bow & cockpit
• Walk-through windshield (welded)
• Transom fish locker
• Full-width swim platform + ladder
• Downrigger mounting pads
• High bow & stern rails

Interior

• 2 pedestal seats (helm + passenger)
• Bench seating with storage
• Locking glove box & storage compartments
• Marine vinyl + carpeted sidewalls
• 8 cup holders

Electrical / Rigging

• Analog gauges (tach, trim, fuel)
• Bilge pump (auto float)
• USB charging ports
• LED navigation lights

1/2 Hardtop (Your Specific Config)

The 1/2 hardtop is an optional configuration in the Chinook lineup.

What it includes:

• Aluminum hardtop over helm area
• Open rear cockpit (no full enclosure)
• Mounting for rod holders & electronics
• Wind protection forward, airflow aft

Compared to other tops:

• 1/2 hardtop: Best balance of protection + openness
• 3/4 hardtop: More coverage, semi-enclosed
• Full hardtop: Fully enclosed cabin style

The 1/2 is the most popular for fishing + versatility, especially in the Pacific Northwest.

Fishing & Utility Attributes

• Deep cockpit for safety offshore
• Large aft deck (open working space)
• Built-in fish box
• Downrigger-ready
• High sides for rough water stability

Trailer (Standard)

• Tandem axle galvanized trailer (~4700 lb rating)
• Surge disc brakes
• Carpeted bunks
• Tongue jack

Overall Character

This boat is known for:

• Rugged welded aluminum build
• Stable offshore ride
• Fishing-first layout
• All-weather capability (especially with hardtop)

Bottom Line

A 2025 21’ Thunder Jet Chinook with a 1/2 hardtop is:

• A serious offshore aluminum fishing boat
• Ideal for salmon, halibut, and big water
• Best paired with 200–250 HP
• Balanced between weather protection and open deck space
• THIS BOAT IS ABSOLUTLY LOADED .. AND READY TO FISH .. HAS MOST IF NOT ALL SAFETY EQUPMENT.

. THIS BOAT IS LOADED .... GARMIN 8612 XSV WITH GARMIN PHANTOM RADAR
. M232 PAN AND TILT THERMAL CAMRA
.GARMIN REACTOR 40 ON MAIN MOTOR
.GARMIN200 MARINE IP CAMRA ON FRONT AND REAR
.PORTABLE TOILET
.MINN KOTA QUEST RIPTIDE BRUSHLESS WITH HAND HELD REMOTE (SELF DEPLOY) 12V OR 36VOLT WITH HUMMIN BIRD BATTERY MAINTAINER / CHARGER 36 VOLT 3 GREEN TOP INTERSTATE LED ACID DEEP CYCLE
.GO LIGHTS PORT AND STARBOARD SIDE ROOF MOUNTED ( WITH WIRELESS REMOTES AT DASH ) PANO SPOT LIGHTS
.MILLER MARINE ANCHOR NEST
.SCOTTY MARINCO PLUGS FOR DOWN RIGGERS OR ELECTRIC REELS
.SCOTTY ELECTRIC DOWN RIGGERS WITH SWIVEL BASES
.GARMIN NET WORK EXPANDER 5 PORT FOR EXTRA GARMINS STUFF
.LED REAR DECK LIGHT
.PROP RING PROTECTOR ON KICKER
.HARD WIRED IN 110 VOLT PLUGS
.BATTERY CHARGER FOR SHORE POWER
.GARMIN VHF 215
.SCOTTY CRAB POT PULLER
.BOAT BUILD SHEETS IN THE PICTURES
THIS BOAT WAS ONLY OWNED ABOUT 3 MONTHS AND DUE TO UNFORTUNATE CIRCUMSTANCES THIS OWNER HAS TO SELL ..... HIS LOSS YOUR GAIN !! CALL MAXXUM MARINE TODAY FOR MORE INFO ON THIS BOAT OR TO LOOK AT IT!