Effect of the "Long Term Solution" Seat Pack on Harvard II (CT156) Aircrew Accommodation

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Authors
  1. Meunier, P.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN)
Abstract
The requirement to include additional survival equipment as part of the seat survival kit of the Harvard II has caused a significant increase to the seat thickness (4 to 5 cm). A previous study determined that any increase in seat thickness would likely have repercussions on the ability of the taller individuals to see all of the information displayed by the Electronic Attitude Director Indicator (EADI), on control stick authority, and possibly on helmet to canopy clearance. The object of this study was to assess the impact of this new seat pack, or Long Term Solution (LTS) seat pack, on pilot accommodation. The study found that approximately 12% to 17% of student pilots (i.e. individuals in the front seat) would not be able to see all of the EADI information. In addition, the taller 2% to 3% of pilots wold likely exceed the aircraft's maximum sitting height limits and have insufficient clearance between the top of the helmet and the canopy. Stick authority was relatively little affected by the proposed seat compared to the baseline. Removal of the g-suit from the winter clothing configuration significantly improved stick authority.

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Keywords
Cockpit accommodation;Cockpit compatibility
Report Number
DRDC-TORONTO-TR-2002-172 — Technical Report
Date of publication
01 Feb 2003
Number of Pages
38
DSTKIM No
CA022198
CANDIS No
519043
Format(s):
Hardcopy

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