(2)
 Credit for training in a .ight simulator that meets the require-ments of §141.41(a) cannot exceed 50 percent of the total .ight training hour requirements of the course or of this section, which-ever is less.

(3)
 Credit for training in a .ight training device that meets the requirements of §141.41(b) cannot exceed 40 percent of the total .ight training hour requirements of the course or of this section, whichever is less.

(4)
 Credit for training in .ight simulators and .ight training devices, if used in combination, cannot exceed 50 percent of the total .ight training hour requirements of the course or of this sec-tion, whichever is less. However, credit for training in a .ight train-ing device cannot exceed the limitation provided for in paragraph (b)(3) of this section.

(5)
 Credit for training in an approved aviation training device cannot exceed 10 percent of the total .ight training hour require-ments of the course or of this section, whichever is less.

(6)
 Credit for training in .ight simulators, .ight training devices, and aviation training devices, if used in combination, cannot exceed 50 percent of the total .ight training hour requirements of the course or of this section, whichever is less. However, credit for training in an aviation training device cannot exceed the limitation provided under paragraph (b)(5) of this section. * * * * *

(d)
 Each course must include .ight training on the areas of operation listed under this paragraph appropriate to the instru-ment aircraft category and class rating (if a class rating is appro-priate) for which the course applies:

*  * * * *
Amend Appendix D to Part 141 by:
a.
Revising paragraphs 4.(b)(1)(i) through (iv);

b.
Revising paragraphs 4.(b)(2)(i), (iii), and (iv);

c.
Revising paragraphs 4.(b)(3)(i) through (iii);

d.
Revising  paragraphs 4.(b)(4)(i) through (iii), 4.(b)(5)(i) through (iii);

e.
Revising paragraphs 4.(b)(7)(i) through (iii);

f.
Redesignating  paragraphs 4.(d)(4)(vi) through (ix) as 4.(d)(4)(vii) through (x);

g.
Adding a new paragraph 4.(d)(4)(vi); and

h.
Revising the introductory text of paragraphs 5.(a), (b), (c), (d), and (e).

The revisions and addition read as follows:
Appendix D to Part 141—
Commercial Pilot Certi.cation Course

[As amended by Amdt. 141–12, 74 FR 42565, Aug. 21, 2009] * * * * *
4. * * *
(b)
 * * *

(1)
 * * *

(i)
Ten hours of instrument training using a view-limiting device including attitude instrument .ying, partial panel skills, recovery from unusual .ight attitudes, and intercepting and tracking naviga-tional systems. Five hours of the 10 hours required on instrument training must be in a single engine airplane;

(ii)
Ten hours of training in an airplane that has a retractable landing gear, .aps, and a controllable pitch propeller, or is turbine-powered;

(iii) One 2-hour cross country .ight in daytime conditions in a single engine airplane that consists of a total straight-line distance of more than 100 nautical miles from the original point of depar-ture;
(iv)
 One 2-hour cross country .ight in nighttime conditions in a single engine airplane that consists of a total straight-line distance of more than 100 nautical miles from the original point of depar-ture; and * * * * *

(2)
 * * *

(i)
Ten hours of instrument training using a view-limiting device including attitude instrument .ying, partial panel skills, recovery from unusual .ight attitudes, and intercepting and tracking naviga-tional systems. Five hours of the 10 hours required on instrument training must be in a multiengine airplane; * * * * *

(iii) One 2-hour cross country .ight in daytime conditions in a multiengine airplane that consists of a total straight-line distance of more than 100 nautical miles from the original point of depar-ture;
(iv)
 One 2-hour cross country .ight in nighttime conditions in a multiengine airplane that consists of a total straight-line distance of more than 100 nautical miles from the original point of depar-ture; and * * * * *

(3)
 * * *

(i)
 Five hours on the control and maneuvering of a helicopter solely by reference to instruments, including using a view-limiting device for attitude instrument .ying, partial panel skills, recovery from unusual .ight attitudes, and intercepting and tracking naviga-tional systems. This aeronautical experience may be performed in an aircraft, .ight simulator, .ight training device, or an aviation training device;

(ii)
 One 2-hour cross country .ight in daytime conditions in a helicopter that consists of a total straight-line distance of more than 50 nautical miles from the original point of departure;
　
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