Sat Mar 05, 2022 4:51 pm
Sat Mar 05, 2022 7:02 pm
Sun Mar 06, 2022 4:13 am
Sun Mar 06, 2022 6:22 pm
Mon Mar 07, 2022 4:22 am
Mon Mar 07, 2022 1:33 pm
I think this is understandable. It takes a lot of stress and fatigue analysis to determine airframe life and much of that is dependent on how the aircraft was operated during its lifetime. Even that isn't perfect though. Luckily many of the WW2 vintage airframes were overbuilt, but even so there is still a big unknown and the risk remains. It's hard to get a bunch of operators together to have an airframe proactively analyzed and tested and split the cost, all this for an obsolete type that may not be supportable for long anyhow. In fact, after the analysis it could have been determined that the aircraft were all timed out already. McDonnell Douglas/Boeing sure wouldn't want the expense and liability of doing that analysis. And AD notes are too reactive- they typically come after a catastrophic failure has occurred.Larry Kraus wrote:The aircraft couldn’t be used as tankers unless the operators could provide a manufacturer’s airframe life limit. The only one that qualified was the P-3, although the paperwork was really for a P-3C rather than the P-3A. The rest of us were out of luck.
Mon Mar 07, 2022 6:19 pm
Mon Mar 07, 2022 11:13 pm
Tue Mar 08, 2022 10:45 am
Great stuff Larry! Great memories.Larry Kraus wrote:Neptune Aviation outsmarted the new regime by having deep enough pockets to convince Lockheed to provide the airframe life paperwork for the P-2 that was now required. This was ironic because the P-2 was the one airplane that the new leaders wanted to eliminate. I can think of at least 6 fatal P-2 accidents that occurred during fire fighting missions. I don’t believe that any of them involved structural failure. Flying low and slow in the mountains in smokey conditions is inherently dangerous. I managed to survive 40 Fire seasons in B-17s and DC-7s even with the dreaded “Can Do Attitude”.
Tue Mar 08, 2022 9:37 pm
Wed Mar 09, 2022 10:44 am
Wed Mar 09, 2022 4:08 pm
Wed Mar 09, 2022 7:18 pm
Larry Kraus wrote:...One of ARDCO’s DC-4s is nose on in the middle row...
Another ARDCO DC-4...in the background...