Mooney Turbo Test 16,500ft
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- Опубліковано 8 вер 2024
- After installing a new turbo charger in a 1961 M20B its time for a high altitude test flight. At 16,500 feet the MP started to drop indicating that some leaks exist in the system, which is a common complaint. Apart from this and some overheating issues, also common, it was a successful flight. With a TAS of 177 to 180 kts at an estimated 13.5 GPH.
A completely manual system, with independent waste gate control, it certainly takes a lot of care and planning to use correct. One interesting aspect on my descent for landing, was at 10,500 feet when i brought the turbo off line and suddenly the engine ran very rough. This was due to having the mixture at the full rich position, something that is required to keep CHT and TIT at an acceptable level while using the turbo charger.
After a 30 minute descent with a ground speed at times of 235kts I arrived back at CYPQ for a wonderful sunset a night touchdown. I am looking forward to some more turbo Mooney adventures soon.
I had to look up this modification after our conversation about getting pre purchase on a Mooney M20C. This turbo seems to be a very rare mod indeed. It looks handy for getting over weather or picking up a good tailwind.
Really nice video in one of the fastest single engine! congrats for your videos they're awesone!!!
They really are a fun airplane to fly.
Thank you James these videos are great to watch as they let us see into other cockpits and add more information to our aviation knowledge base
Thanks for your comment. I am really glad to hear that you enjoyed the video.
I wonder how you can fix such a problem with the turbo? Great video btw, a wonderful insight into a different aircraft. Keep up the great work with the aviation content
I am going to be doing some more research into this but ensuring I have good seals at airbox and carburetor are going to be my first steps. A cowl modification to improve cooling is also going to be required to help with CHT and oil temperature. Thank you for you comment.
Is this a Rajay Turbo? I assume You have a Flight Strobe FS-4400?
Yes it is a Rajay Turbo. This was the first test flight after I installed a overhauled turbo from Main Turbo in California. No FS-4400 but there are Whelen wing tip strobes.