Oh wow, Elbee, me and my cousin had the PT 19 and I had the Cox Spitfire too, which my dad tried to fly and, well lets just say it didn't go well. I flew the PT 19 under power a couple of times until one string detached and it became garbage fodder.
Little did I know that 40+ years later I'd have what I have now, I remember dreaming about owning a 'Galloping Ghost' radio system!! And enviously watching the guys at the local club with their Kraft radios.
Front just north of us at sunrise. Being at the leading airmass interface, the wind was forecast to be light at sunrise. Sooo, I went out.
Forecast was wrong! S @ 12-15 mph. I flew the P-51 anyway because it’s gonna be N @ 35 mph all day after the front passes.
3 flights in choppy air…Gave the gyro a work-out.
Landings were “ok”…small bounces due to gusts.
She handles these conditions VERY well.
Never has she attempted to drop the nose on a bounce, but that’s probably due to my tail dragger experience and knowing when to hold full up elevator in certain bounce conditions.
-GG
PS Unless you are a perfect pilot in gusty conditions, glue some tip skid plate material on the bottom/trailing edge of the wing tips. You’ll be glad you did. Also a good idea to protect the bottom outer aileron trailing edges with some skid plate material.
I believe the two prop adapters are different lengths as well. That's why I also bought the P-51 prop adapter to go with the Spitfire motor (comes with the prop adapter for the Spit).
Got the parts today. The 2 prop adapters are IDENTICAL, so I could have gotten away with just ordering the 1600mm Spitfire motor. I guess I'll have a spare prop adapter.
Continuation of my journey to make an FMS 1700mm/FL 1600 P-51 Mustang hybrid (from post #106) ....................
Here is a couple of pics of all the old parts from the FMS and all the new parts from the F/L P-51. The difference in length of the motor/prop adapter is 4mm (the X mount is 1mm thicker on the F/L), so I'll need to bring the F/L motor forward 4mm. As you can see, the diameters of the 2 prop base plates is minimal, the F/L one being a couple mm smaller, so barely noticeable. The biggest problem I see is in the X mount plate. The outer hole distance across the motor center is quite a bit smaller on the F/L. I'll have to figure out how to make new holes in the face of the FMS motor mount. I may use a 4mm thick ply plate and attach it to the motor mount. That'll also take care of the need for standoffs. (I do love a challenge.)
New data ...................... The F/L motor and X mount needs to be brought forward by 15mm. The FMS prop adapter sits on TOP of the fat part that screws into the motor. Only the small hex part goes inside the base plate. The F/L prop adapter completely fits INSIDE the prop base plate. I will use both X mounts and a 1/2" ply spacer to achieve the required motor placement. The outer holes in the F/L X mount will need to be reamed out slightly so the 2 X mounts can be stacked together.
Last edited by xviper; Mar 28, 2026, 12:22 PM.
Reason: New information.
Can you please measure and report the distance from the face of the motor mount (where the motor "X" plate attaches) to the back side of the spinner on the FL?
Back in 2016 I repainted my FMS P-51 as Hubert. After going through this entire thread I am getting the itch to get the FL P-51 which appears to be vastly superior to the FMS version and redoing it as Hubert again. I am also entertaining the possibility of equipping it with a scale 18.6" diameter 4 blades Varioprop propeller.
Josh
Back in 2016 I repainted my FMS P-51 as Hubert. After going through this entire thread I am getting the itch to get the FL P-51 which appears to be vastly superior to the FMS version and redoing it as Hubert again. I am also entertaining the possibility of equipping it with a scale 18.6" diameter 4 blades Varioprop propeller.
Josh
That would be awesome! Please strongly consider moving forward. Caution has been previously stated about overloading the ESC.
Seventy-six years ago, the P-51C Mustang Thunderbird streaked across the skies, setting a transcontinental speed record that would etch its name into aviation history. P
ALL,
Fun Facts.
Best, LB
"I am having an extraordinary ordinary life."
~Lucky B*st*rd~
"You just need the will to do what the other guy wouldn't."
I ordered a motor mount and spinner from MRC. From the motor dimensions in the manual I can say that installing my replacement Hacker will be easy, the big unknown at this point is the distance from the front mounting face of the motor mount to the front of the fuselage. If I can get this dimension, I know that I can fit my propulsion system. Once established, I am going to buy the model.
Can you please measure and report the distance from the face of the motor mount (where the motor "X" plate attaches) to the back side of the spinner on the FL?
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