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2007 Hall WH4 HarpoonExperimental Aircraft • Port Saint Lucie, FL, USA

This is a 2007 Hall WH4 Harpoon, an experimental/homebuilt aircraft located in Port Saint Lucie, Florida, with a total time of 7,500 hours. It is an extremely rare single-engine turbine conversion of a Beechcraft Baron B55 airframe, with only six examples flying. No expense was spared in building, improving, and maintaining this plane, and it is currently getting its annual inspection completed, which is described as a great time to do a pre-buy.

The aircraft is powered by a 725 HP Walter 601D turbine engine, offering a cruise speed of 225-230 knots and a climb capability of 1,500 to 3,000 feet per minute depending on weight and passengers....

Year
2007
Make
Hall
Series
Baron 55
Model
WH4 Harpoon

Find similar aircraft

Specifications

Category
Experimental
Intended Use
Business, Recreational

Hours, Logs & Inspections

Total Time
7,500 hrs
Inspection Status
Currently getting its annual done

Additional Equipment

Air Conditioning

Auxiliary air-conditioning

Oxygen System

Four-place O2 system

Engine & Propeller

Engine Type
Turboprop
Engine Count
1
Engine Make
Walter
Engine Model
601D
Engine Power
725 HP

Asking Price

$450,000

Aircraft Location

Port Saint Lucie, FL, USA

Listing Details

Used
For Sale

Price History

Mar 31, 2026: $450,000 - controller

Contact Seller

First Seen: Mar 31, 2026

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Asking Price

$450,000