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Engine
Installations
The high-lift
features of the design give the STOL CH 750 its excellent short
take-off and landing capability. The STOL CH 750 light sport utility
aircraft was
designed to provide excellent STOL performance without the need
for a lot power: Overpowering an existing aircraft is the easiest way to achieve short take-off performance (with enough power
anything will take-off in a short distance!), but this requires a lot of fuel for acceptable
endurance, and is an expensive, heavy, and inefficient way to obtain STOL performance, and does not provide good slow flight or
payload due to the heavier engine weight and fuel load requirement.
While all aircraft are designed within certain power
and engine weight guidelines, Chris Heintz
has not
designed the aircraft "around" a particular engine - to maximize the customer's choice of installed
powerplant.
Recommended power for the STOL CH 750 (built to the Edition 2 drawings) is
80 to 140 horsepower, up to 280 lbs. installed weight.
Following are currently the most
popular engines being installed in the STOL CH 750 aircraft (additional engines
may also be available or suitable):
At Zenith Aircraft Company, our specialty is
airframes and not powerplants. We do not recommend nor endorse specific
powerplant choices. While we strive to make a variety of firewall-forward
packages and/or accessories available, we may not stock everything needed by the
builder to successfully complete the powerplant installation.
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"The
912 Competition" is a video presentation (on DVD,
from HomeBuiltHELP.com) from the vendors of engines for
experimental aircraft (80-120 hp).
(Note that some of
the engines presented may not be suitable for the STOL CH 750
airframe).
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About "Alternative" Engines:
STOL CH 750 designer Chris Heintz has stated: "I've designed the STOL CH
750 specifically for a wide choice of engines - 80 to 140+ hp, up to
280 pounds installed. Many different engine types have been custom-installed in the
CH 750."
 Most custom engine installations
typically require a lot of work and "troubleshooting" to properly install, and
may not provide the expected performance and reliability.
Designed as a light sport utility kit aircraft,
top speed of the STOL CH 750 is limited by its high-lift design
features, and more power will not yield significant top speed gains.
An inexpensive engine may cost you less to purchase initially, but may not provide the
proven reliability and performance you expect, and may need to be replaced a lot sooner than expected.
Zenith Aircraft Company
stocks engine mounts and accessories for various engine types but does not provide support for
the engine installations.
Alternative engines will affect performance, specifications and flight characteristics of the aircraft. Also, the weight and balance of the aircraft may be adversely affected by
different engines, and the original fuel system may not be adequate or suitable for some
engines and installations. Most alternative engines will require a custom engine mount and
cowl. Zenith Aircraft Company does not manufacture or directly support engines nor their
installations.
Related Information:
Above engine
information supplied by the manufacturers or distributors. Equipment, features and availability
subject to change without notice.
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