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Too bad we can't make a real one, we'd be cruising at redline every flight.............

Steve,
It is possible to convert a 150 to a 150RG. I saw one with my own eyes.

Harold Vroman, a well known and well respected member of the aviation community in West Texas, actually installed retractable gear along with an injected 0-320 160 HP engine on a 150 back in the late ?70s. He demonstrated the gear operation to me one evening and it worked just as slick as any 172RG or 182RG.

He had made a deal with the GADO to license the plane in the Experimental category but before he got it to the point of licensing the GADO had a change in personal and they told him that since he had not done 51% of the work on the plane it could not be licensed as experimental, only for development and exhibition. They did tell him if he would build the wings he could get an Experimental License.

He abandoned the project and started building a RV-4. Sadly due to injuries sustained in an accident while building Tee Hangers on the airport that he developed, Sky Ranch (now Sky West ? 7T7), the died before finishing the RV.

I would have loved to fly or at least see the 150 RG fly. Goodness only knows how much it would cost to make the conversion. After my experience in modifying a 150 I am sure that it would not have been an economically viable project. But it sure would have been fun.