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Ed - What your friend says is absolutely correct. Such devices as alternators, voltage regulators, electric motors, etc. are often apparently the same units used in aircraft and autos. But, the testing criteria are must tighter for the airplane unit. A single unit can pass quality control for auto use and be rejected for aircraft use. Often, separate QC inspectors are trained to run separate QC lines, one for auto and one for aircraft parts. Then, as your friend says, there is the paperwork trail issue that applies only to those parts destined for aircraft, and isn't an issue for those units to be used in cars. Since the QC standards are tighter for the aircraft parts, the rejection rate is higher, and parts that can't be sold naturally increase the total costs of manufacture of those that can be used. So, there really are many differences. Jerry E. -----Original Message----- From: Ed Burkhead [mailto:[EMAIL PROTECTED] Sent: Friday, January 26, 2007 9:48 AM To: [email protected] Subject: RE: [COUPERS-TECH] C85 fuel pump ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Al wrote: > I also should state that I beleive if a part from anywhere > else was certified for use in an airplane, there should be > no reason to pay airplane prices for it. A friend of mine worked in a factory about 30 years ago where he did quality control. He mentioned that one of the widgets they made was used for aircraft as well as autos. I started ranting about how much aircraft approved parts cost compared to identical auto parts. He explained to me how much more quality control their airplane parts get, that it's a small run and that they get separate packaging and a paperwork trail. OK, I guess I'm willing to pay somewhat more for the "identical" aircraft part. I understand even if I don't necessarily like it. Ed ============================================================================ == To leave this forum go to: http://ercoupers.com/lists.htm ============================================================================== To leave this forum go to: http://ercoupers.com/lists.htm
