It is on a Constellation. Elevator attach, control side. I had arrived at 6061 T6 for the same reasons, and near identical weight, although it is not a balance concern. It will be no problem to machine.
Thanks for the responses.
The UH60 engine and tail drive shaft installations use stacked members in a "flex pac" as it was called, to help isolate resonance in the powertrain. The engine is attached rigidly to the transmission input gearbox with a hollow tube that bolts directly to the swirl frame on the front of the...
My error. I just viewed the images. It looks like someone has attempted to support the area from the bottom of the firewall, which is not smart! If you can go into the gear well and run the bore scope forward in the channels where the truss bolt barrel nuts are located, check for the fasteners...
I am making an argument on a current project for the same reason. 2 pieces of 7075T6 .050 sheets joined by a 3/16" E rivet, where a DD was originally specified. The DD, properly prepared, will not damage these sheets, but the E rivet in this instance will overwhelm the bearing strength of the...
This is a common type of damage on the King Air Series, and is, indeed, from over-pressurization of the tank. There is, if I remember correctly, a section in the Super King Air Series SIRM that gives a reccomended parts list for items to replace when this occurs.
Hope this helps. If you can...
