Rule2022-06171
Special Conditions: Dassault Aviation Model Falcon 6X, Limit Pilot Forces-Side-Stick Controller
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
March 23, 2022
Effective
March 23, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
These special conditions are issued for the Dassault Aviation (Dassault) Model Falcon 6X airplane. This airplane will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This airplane is equipped with an electronic flight-control system that includes pilot controls through a side stick instead of through a conventional wheel or control stick. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
Full Text
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<title>Federal Register, Volume 87 Issue 56 (Wednesday, March 23, 2022)</title>
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[Federal Register Volume 87, Number 56 (Wednesday, March 23, 2022)]
[Rules and Regulations]
[Pages 16387-16388]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-06171]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 25
[Docket No. FAA-2014-1076; Special Conditions No. 25-607A-SC]
Special Conditions: Dassault Aviation Model Falcon 6X, Limit
Pilot Forces--Side-Stick Controller
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final special conditions; amendment.
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SUMMARY: These special conditions are issued for the Dassault Aviation
(Dassault) Model Falcon 6X airplane. This airplane will have a novel or
unusual design feature when compared to the state of technology
envisioned in the airworthiness standards for transport-category
airplanes. This airplane is equipped with an electronic flight-control
system that includes pilot controls through a side stick instead of
through a conventional wheel or control stick. The applicable
airworthiness regulations do not contain adequate or appropriate safety
standards for this design feature. These special conditions contain the
additional safety standards that the Administrator considers necessary
to establish a level of safety equivalent to that established by the
existing airworthiness standards.
DATES: This action is effective on Dassault on March 23, 2022.
FOR FURTHER INFORMATION CONTACT: Todd Martin, Materials and Structural
Properties Section, AIR-621, Technical Innovation Policy Branch, Policy
and Innovation Division, Aircraft Certification Service, Federal
Aviation Administration, 2200 South 216th Street, Des Moines,
Washington 98198; telephone and fax 206-231-3210; email
<a href="/cdn-cgi/l/email-protection#64100b00004a090516100d0a240205054a030b12"><span class="__cf_email__" data-cfemail="2e5a414a4a00434f5c5a47406e484f4f00494158">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
On July 1, 2012, Dassault Aviation applied for a type certificate
for their new Model Falcon 5X airplane. Special conditions were issued
for that design on January 27, 2016 (81 FR 4579). However, Dassault has
decided not to release an airplane under the model designation Falcon
5X, instead choosing to change that model designation to Falcon 6X.
In February of 2018, due to engine supplier issues, Dassault
extended the type certificate application date for their Model Falcon
5X airplane under new Model Falcon 6X. This amendment to the original
special conditions reflects the model-name change. This airplane is a
twin-engine business jet with seating for 19 passengers and a maximum
takeoff weight of 77,460 pounds. The Dassault Model Falcon 6X airplane
design remains unchanged from the Model Falcon 5X in all material
respects other than different engines.
Type Certification Basis
Under the provisions of 14 CFR 21.17, Dassault must show that the
Model Falcon 6X airplane meets the applicable provisions of part 25, as
amended by Amendments 25-1 through 25-146.
If the Administrator finds that the applicable airworthiness
regulations (i.e., 14 CFR part 25) do not contain adequate or
appropriate safety standards for the Dassault Model Falcon 6X airplane
because of a novel or unusual design feature, special conditions are
prescribed under the provisions of Sec. 21.16.
Special conditions are initially applicable to the model for which
they are issued. Should the type certificate for that model be amended
later to include any other model that incorporates the same novel or
unusual design feature, these special conditions would also apply to
the other model under Sec. 21.101.
In addition to the applicable airworthiness regulations and special
conditions, the Dassault Model Falcon 6X airplane must comply with the
fuel-vent and exhaust-emission requirements of 14 CFR part 34, and the
noise-certification requirements of 14 CFR part 36.
The FAA issues special conditions, as defined in 14 CFR 11.19, in
accordance with Sec. 11.38, and they become part of the type
certification basis under Sec. 21.17(a)(2).
Novel or Unusual Design Features
The Dassault Model Falcon 6X airplane will incorporate the
following novel or unusual design feature:
This airplane is equipped with an electronic flight-control system
that includes pilot controls through a side stick instead of through a
conventional wheel or control stick.
Discussion
The Dassault Model Falcon 6X airplane is equipped with a side stick
instead of a conventional wheel or control stick. The requirement of
Sec. 25.397(c), which defines limit pilot forces and torques, applies
to conventional wheel or control stick and is therefore not adequate
for this new side-stick design with electronic flight controls that
affect maneuvering.
These special conditions contain the additional safety standards
that the Administrator considers necessary to establish a level of
safety equivalent to that established by the existing airworthiness
standards.
Discussion of Comments
The FAA issued Final Special Conditions, Request for Comment
Special Conditions No. 25-607-SC for the Dassault Model Falcon 5X
airplane, which was published in the Federal Register on January 27,
2016 (81 FR 4579). No comments were received, and the special
conditions are adopted as proposed, with amendments.
Applicability
As discussed above, these special conditions are applicable to the
Dassault Model Falcon 6X airplane. Should Dassault apply at a later
date for a change to the type certificate to include another model
incorporating the same novel or unusual design feature, these
[[Page 16388]]
special conditions would apply to that model as well.
Conclusion
This action affects only certain novel or unusual design features
on one model of airplane. It is not a rule of general applicability.
List of Subjects in 14 CFR Part 25
Aircraft, Aviation safety, Reporting and recordkeeping
requirements.
The authority citation for these special conditions is as follows:
Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701, 44702, 44704.
The Special Conditions
Accordingly, pursuant to the authority delegated to me by the
Administrator, the following special conditions are issued, in lieu of
the aileron-control and elevator-control forces specified in Sec.
25.397(c), as part of the type-certification basis for the Dassault
Model Falcon 6X airplane.
For airplanes equipped with side-stick controls designed for forces
to be applied by one wrist and not arms, the limit pilot forces are as
follows.
1. For all components between and including the side-stick control-
assembly handle and its control stops:
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Pitch Roll
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Nose up, 200 lbs force.................... Nose left, 100 lbs force.
Nose down, 200 lbs force.................. Nose right, 100 lbs force.
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2. For all other components of the side-stick control assembly, but
excluding the internal components of the electrical sensor assemblies,
to avoid damage to the control system as the result of an in-flight
jam:
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Pitch Roll
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Nose up, 125 lbs force.................... Nose left, 50 lbs force.
Nose down, 125 lbs force.................. Nose right, 50 lbs force.
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Issued in Kansas City, Missouri, on March 18, 2022.
Patrick R. Mullen,
Manager, Technical Innovation Policy Branch, Policy and Innovation
Division, Aircraft Certification Service.
[FR Doc. 2022-06171 Filed 3-22-22; 8:45 am]
BILLING CODE 4910-13-P
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