Power
| Essential to the performance of any aircraft is its power plant. The BT-67
is superbly equipped in this respect with the PT6A-67R Turboprop engines
from Pratt & Whitney Canada and 5-blade metal propellers from Hartzell. |
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The PT6 engine type has been the engine of choice
for commuter airlines for over 20 years. It has established itself in terms
of the highest reliability and durability in conjunction with the lowest
operating cost. It powers over 12,000 aircraft (100 types) in 160 countries
around the world and has accumulated over 162 million hours of service.
PT6A-67R
Pratt & Whitney Canada
The PT6A-67R represents the latest evolution of
its type. Over 3,800 of the PT6A-60 family of engines have flown more than
31 million hours.
The engines and propellers provide the BT-67
with the optimal combination of power, efficiency, reliability and product
support.
Features:
- Ease of maintenance
- System simplicity
- True modular construction
- On-the-wing maintenance
- Fewer man hours / faster turn arounds
- Daily inspections - 5 minutes (visual)
- 100-hours inspection - 2 hours
- Hot-section inspection - 10 hours
- Engine change - 20 hours
- Quick engine change - 14 hours (built-up
engine available)
- Unscheduled maintenance - 2 hrs/100
flying hrs
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Accessories
Replacement:
- Ignition box - 15 minutes
- Propeller control - 25 minutes
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Engine Run-Up and
Performance:
- Check (stabilized) - 20 minutes
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Engine Operating
Limits:
- Take off (5 min) 1424 shaft H.P. to 99°F
(37.2°C)
- Take off (5 min) (ALT.) 1281 shaft H.P.
to 91°F (32.8°C)
- Max continuous 1220 shaft H.P. to 119°F
(48.3°C)
- Propeller speed - 1700 rpm at take off,
1200-1700 rpm at cruise
- Dry weight - 515 pounds
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Reliability -
PR6A-67R:
- Time between overhauls - 6,000 hours
initial, with increases based on operator experience
- Basic inflight shut-down rate - one per
200,000 hours
- Basic unplanned removal rate - one per
75,000 hours
- Less investment in spares
STC: FAA Supplemental Type
Certificate SA4840NM and Part Manufacturing
Authorization held by: Basler Turbo
Conversions, LLC, Oshkosh, WI USA
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