Amendment 01 to PD05WRLEEG11.doc

DOC document 23 KB Posted

Attached to
Basic Expeditionary Airfield Resources (BEAR) Power Units (BPU) Federal contract opportunity
Solicitation number
FA853308R10864
Issued by
Department of the Air Force Materiel Command Lifecycle Management Center Robins Air Force Base

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Amd 01 to PD05WRLEEG11

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Text version

PURCHASE DESCRIPTION PD05WRLEEG11

AMENDMENT 01, dated 05 November 2008

PD05WRLEEG11, BASIC EXPEDITIONARY AIRFIELD RESOURCES (BEAR) POWER UNIT (BPU) dated 14 Aug 2008 is hereby amended to include the following updated paragraphs:

Remove existing paragraph 3.3.8.1 Torsional vibration and replace it with the following:

3.3.8.1 Torsional vibration. The BPU maximum torsional stress in the shaft shall not exceed 5,000 psi and shall be approved by the engine and generator manufacturers for all operating speeds including idle, and within 80 percent to 120 percent of 50Hz and 60Hz operating speeds.

Remove existing paragraph 4.6.8.2 Torsional vibration test and replace it with the following:

4.6.8.2 Torsional vibration test. A preproduction BPU shall be tested in accordance with MIL-STD-705C, Method 504.2a, at engine idle speed and continuous operating speeds for both 50 Hz and 60 Hz power generation to demonstrate compliance with 3.3.8.1. Calculation of the maximum shaft stress shall be provided and approved by the engine and generator manufacturers.

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