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On the subject of brakes, Jim, do you have copies of 337s for converting to disc brakes? I know there’s been several done over the years. I’m looking ahead, as I don’t figure there will be any viable stock brake bladders by the time my bird gets close enough to need them.
Craig
Hi Don, Thanks for providing it. My email is cvcantwell@verizon.net
Hilly, I”ll see about digging up my manual in the next week or two and see what all has to be done to do the conversion. I think it’s only changing a couple of jumpers within the AVT-112 itself, and maybe one tube.
Hilly: You can estimate the footprint pretty close once you have the 63019 floorboard installed. The container goes between them and the next cross tube and should be close to filling that area. Detail “G” on the 63000 drawing, page 2, upper right corner shows the mounting method and locations. You can estimate the height by approximation of the height of the folded stack of the cockpit covers and engine and prop cover.
Based on the drawings we have and the IPC, the web strap across the top of the container is probably 2″. Not a lot of 2″ stuff was used, but I have drawings calling for that width on another model aircraft.
Craig
Hilly: Why not change it over to 12 volt? The manual shows how. Only hitch will be the vibrator. I’m probably going to change over to a solid state one for mine.
Craig
Geoff: For information, the B’s thru the E’s had the crystal holder on the right side wing closeout rib, above the door. The block was mounted on a pair of standoffs to give a little clearance behind it.
Geoff: I’ve got a B model so mine mounts differently. I took a quick run thru the IPB and depending on the s/n. In the case of your aircraft, if I remembered the correct s/n, I think you need to look at the 72033 and 72043 drawings for the mounting tabs, as the crystal holder will be at a right angle, hanging below the power supply deck. Mounting screws will be S422-8-12’s, which if I remember correctly, are button head, fully threaded machine screws and not countersunk.
Somewhere amongst all the paperwork and files around here, I have a conversion list from Stinson numbers to standard AN/MS numbers. I just got out of the hospital yesterday, after a week’s stay, and my office here at the house looks like a bomb went off in it. I’ll watch for it, but it may be a week or more before I find it.
Craig
I’ll try this again…
Charles: Here’s a 4 switch box that only needs the one switch to be added back:
There are a couple of early all metal boxes on there as well, but one is stripped and the other is New in the box and they want tall money for it.
Here’s the mount drawing someone sent to me a while back:
I know prices are going nuts on this stuff. I’ve got a couple of boxes and I think I paid 40$ for the most expensive one at the time. The set of lights is going berserk as well. I don’t think you can get a set of the bottom lights for under about 150$ and the top in clear ranges around 60-90$ and even more in blue. I managed to get a couple of the clears, NIB for about 50$ combined, recently. Had a chance to buy a huge box of fixtures that probably had a couple of dozen of the bases, for under 150$, but didn’t.
I’ve been careful shopping for bearings, rod ends, hardware and other parts for both my L-5 and Fairchild and it’s been very hit or miss on finding affordable prices on things.
Craig
I was able to find some info on the light control…. From TO 03-5-69, 20 June 1944, there was a change in the fabrication from metal to bakelite sometime prior to this. There was no effectivitey date for the changeover, but prior to the time of publication, both versions had been procured under the same drawing number, no dash number addition or indication as to a difference in materials. The book also says that the metal version procurement had been halted at some time prior to that publication date, and that both versions were direct interchange. Existing metal stock units would continue to be issued as needed until all stocks were exhausted, and after that, the bakelite ones would be the norm. By that, I would surmise that when stock was ordered for the production floor, you got what ever was on hand when the order was received at the GFE warehouse.
Charles: Here’s the sketch someone provided to me for the lower mount:
Scarf this box up and add the 4th switch. It’s already punched and engraved.
There are two early metal ones on there as well, but one is stripped and the other is complete, but they want a hefty price for it, as it’s new in the box.
