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Free length is supposed to be 11.62″ +.19″, -.03″. 24 1/2 turns of .344″ 6150 steel. 668 lbs +/- 67 lbs, should compress it to 9.25″
As to restretching, would have to defer to someone in the spring world that has dealt with 6150
Looking at the drawings, there is only .001″ clearance between the strut body id and the od of the piston. Drawings don’t show there to be a seal on the piston itself. Being it’s made out of an aluminum bronze alloy, I would suspect that it has worn enough that it passes oil too fast. The od on the piston shows to be 1.249″, on the drawing, and the tube id to be 1.250″.
Don: The drawing I have access to says 72202 on note 3. 72301 wouldn’t be applicable to my airplane anyway, as I’ve got a B and not a G.
That bracket was removed from my a/c long before I got it. I suspect when the 2nd full panel and brake pedals were added, it came out.
Craig
Sure did and thanks for the file. I was about to reply via direct email this morning, but saw this note too.
Matt: Group or Figure 45 in the IPB shows what was delivered in the observer and the parts change by serial number block. In your case, 98774 falls into the 9+ s/n block. When you read that out, from 42-98610 until the end of production, got the M8.
In my case, the B’s only go the M2. It appears that the C model and on, did not get the flare gun as part of the factory equipment.
Charles: radios are in. I’m going to unbox them this morning and take them over to the hangar. Tried to run them by last weekend, but everyone was gone.
Don: I’ll have to do a little digging in my radio stash. I may have a spare BC-1206, and AVR-20 and AVT-112, if you don’t have them. I think I’ve only got one AVA-126 though. The antenna reels are almost unobtanium these days, but I was able to borrow a good repo and start making a set of prints.
I’m going to put one of my kids to work, creating the drawings for the AVA-10/53 crystals for the AVT-112 and make some via 3d printing. I’ve got a few originals and they weigh something like a half pound each. That’s 5 pounds in the crystal rack…..
Charles: I’ll take it over to the hangar with Gerry’s once they come in. They came from a fellow ham operator that restores lots of older military gear, and he decided that these two were not going to go on his bench due to time and project pile-ups. They have the potential for being restored to operational, but he has so much other stuff waiting on bench time, the decision was made to cull these from that list.
Craig
Hilly: Not yet. I’ve been back in the books again, and it looks like the early airplanes and the B shared the same mount. From the wiring diagram, it’s not a huge leap to determine that the mount is wood, due to each of the lights being daisy chained together and linked to a fuselage ground by a single wire.
What’s the drawing number you have from AirCorp? I’m in and out of their library pretty often and can try and decipher the info from the drawing.
Craig
