Geoff Gardiner Posted September 28, 2024 Author Share Posted September 28, 2024 For those of you that are reading this and have built and flown this model, I would love to know where you have set the CofG. Measuring off the plan it is 105mm from the root leading edge but Richard suggests going slightly in from this to start with. I am thinking of starting at 100mm but would welcome input from others experience. Thanks. Quote Link to comment Share on other sites More sharing options...
Paul Johnson 4 Posted September 30, 2024 Share Posted September 30, 2024 Hi Geoff I can't remember what mine is but I think it might be at 105mm. You won't go wrong at 100mm as Richard suggested and working from there. Again it is quite a tolerant aircraft. Quote Link to comment Share on other sites More sharing options...
RICHARD WILLS Posted September 30, 2024 Share Posted September 30, 2024 I agree with Paul . Mine was heavier to start with and flew fine , but in my usual experimental fashion I started losing bits off it to see what difference it made . The only real difference was a better climb rate . I always start with a forward C of G then take out the ballast after a few flights . Its always windy nowadys so with an 8-10mph wind it will fly itself off . Pauls one is more like yours than mine as I dont have flaps as it was pre production . When I have flaps to play with I will use about 5mm down flap for test flying till its trimmed . It just keeps the plot steady . Quote Link to comment Share on other sites More sharing options...
Geoff Gardiner Posted October 9, 2024 Author Share Posted October 9, 2024 Afternoon chaps. Does anyone know which FMS spinner fits this model. There are several listed for FMS P51's but they don't give any measurements. I have emailed several suppliers and the only thing I have found out is that part number FS-ST115-SL measures 90mm. I believe we need an 83mm one. Here are the ones that I have found: Any help gratefully received. Geoff... Quote Link to comment Share on other sites More sharing options...
Paul Johnson 4 Posted October 9, 2024 Share Posted October 9, 2024 Hi Geoff. Either of the bottom right ones will do. Quote Link to comment Share on other sites More sharing options...
Geoff Gardiner Posted October 9, 2024 Author Share Posted October 9, 2024 Hi Paul, Have you used one of those? I ask because I had a responce from CML this afternoon who said that FS-SU116RT was also 90mm. I'm just confused! Quote Link to comment Share on other sites More sharing options...
Paul Johnson 4 Posted October 9, 2024 Share Posted October 9, 2024 1 hour ago, Geoff Gardiner said: Have you used one of those? I have one on my fms P51d Quote Link to comment Share on other sites More sharing options...
Geoff Gardiner Posted October 9, 2024 Author Share Posted October 9, 2024 Great stuff. Thanks. Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted October 10, 2024 Share Posted October 10, 2024 Isn't the question "which will fit my WR P51?" Quote Link to comment Share on other sites More sharing options...
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