littlewheelinback wrote:I know some of this has been discussed before, but...I am looking at a square tail 1959 flat back 150 with the tw mod. This is the mod with the original maingear "reflaired" and turned around. Is this setup ok or a poor mod? Also, the 150 wasn't certified for floats until '63 or '64...is there anyway this older 150 can be approved for floats? Any insight would be appreciated.
If the 150 tailwheel mod your airplane used just "re-bent" the main gear to make it a little taller, then it will be a little narrower too. This means the airplane will not be quite as easy to handle as the equivalent 140.
Assuming the 140A has are longer legs, I believe you might do a lot better with a set of 140A landing gear installed using a field approval. It would be a relatively easy field approval in my opinion, since you already have a tailwheel conversion approved on the airplane. You would write a letter to the FAA FSDO office to say that the original re-bent 150 gear (as originally approved) is not giving you safe propeller clearance, that you have had minor prop abrasion issues operating on unpaved strips, and you wish to simply substitute an already type certified FAA approved taller 140A landing gear leg...
to bring the 150 up to the safe prop clearance dimension as the nearly identical 140A.
If my assumptions above are correct (re: gear lengths), I would be happy to help you write that letter if you need any help. I have pretty good success with those kinds of things with the FAA.
Another
critically important point is that if there happened to be a set of slightly longer 140A legs on the airplane when it is sitting in the tiedown, and since it would "look right" more so than the short 150 legs, the most any FAA inspector is likely to do is ask to see whether you have a tailwheel conversion STC. I kinda think their inquisition would more than likely end when you hand the STC paper to them.