Official FlightLine 1600mm P-51D Mustang Thread

[xviper]

If you have the programmer, you should check what the gains are. They may have been incorrectly set at the factory. Sounds like the AIL gain is too high.

[Evan D]

Mine doesn't. I wonder why yours does.

[paulrkytek]

bought mine with preset gyro but ailerons oscilate in 15mph wind, so much for the setup !!!!! Not happy I should have just stuck to my hobby eagle A3 super4

[xviper]

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.

Got a chance to fly the hybrid P-51 this moring.
The FMS 1700 with the F/L powertrain doesn't look any different than stock except for the nose cone. It even sounds exactly the same. Flight-wise, the climb performance and vertical are much improved. Loops are very easy and without having to dive it first to make sure it gets up and over the top. However, ultimate top speed has only marginally improved, perhaps be a few mph more. So, not a significant, eye popping difference. Nevertheless, the improved "pull" gives a better low end feeling of security. Was it worth it? 50:50. If I didn't already have the 1700 Red Tail, I would have just bought the new Flightline. Anyway, it's a keeper.

[xviper]

Mine certainly doesn’t have unlimited vertical on a 100c 5200 6s.


if I can’t have a scale speed of over Mach 2 I’m not happy 😃😳

What brand of LiPo is it? I've seen load tests on some 100C batteries can barely muster up 30C.

[Merlinfan]

Mine certainly doesn’t have unlimited vertical on a 100c 5200 6s.


if I can’t have a scale speed of over Mach 2 I’m not happy 😃😳

[f4u ausie]

If it has unlimited vertical already. Can't b to slow just buy a jet b done with it

[xviper]

I would worry about the stock motor on 8s. It may not last "flat out" for "short". Also, would the stock prop assembly hold up?

[Merlinfan]

How about a spare motor? I wouldn’t run it flat out for long.

[Evan D]

Stock prop? Anything else?

Freewing has a 120A esc. 2 x 5200 4s fit nicely.

[Merlinfan]

Freewing has a 120A esc. 2 x 5200 4s fit nicely.

[Evan D]

Curious what would you replace to go 8S. ESC and batteries are a given. Prop? Motor? Add a BEC?

[Eddie P]

Pylon racers and go fast guys always win 🥇 🤠🎸

I’m in for 8s if it doesn’t break the bank. I’m already underwater just on the purchase price 😂

just kidding. I know this thing is obviously over the line cost-wise for most of us. But I’m still in for 8s if there is a decent and reasonable solution. I’m too busty to do my own legwork right now. Perhaps… Later this summer I might find the time. if no one else beats be to it. Come on guys.. someone beat me to it…

[Evan D]

You win, go 8S!

[Merlinfan]

First it’s FreeWing/ Flightline. Motion just sells them. I fly mine with a 5300 HV and it has just about unlimited vertical. This is not a pylon racer. I fly mostly half throttle and get 12 minutes.

Maybe I need HV packs. Not a pylon racer? Come on!

[Chillibadger]

Did you need to adjust anything on the Esc for the high voltage as I was thinking of using my Turnigy Bolt 5400

I have flown mine on a BoltX 5400mah fine, I even left the xt90 on it and put an ec5 adapter on the pack which I normally don't like doing

[Evan D]

No. Just use it like any other LiPo.

[paulrkytek]

First it’s FreeWing/ Flightline. Motion just sells them. I fly mine with a 5300 HV and it has just about unlimited vertical. This is not a pylon racer. I fly mostly half throttle and get 12 minutes.

Did you need to adjust anything on the Esc for the high voltage as I was thinking of using my Turnigy Bolt 5400

[GliderGuy]

I maidened mine yesterday and my impression is this plane needs 8s! Motion should offer a plug and play 8s system that would fit the prop backplate.

Flying mostly at 1/2 throttle with the ability to go almost unlimited vertical at full power on the stock 6S power system will likely meet a majority of the buyer needs. And...8 to 12 minutes is plenty good for most folks.

In my experience, 8S is overkill for this well balanced (performance) fun flyer...not intended to be a pylon racer.

-GG

[Evan D]

First it’s FreeWing/ Flightline. Motion just sells them. I fly mine with a 5300 HV and it has just about unlimited vertical. This is not a pylon racer. I fly mostly half throttle and get 12 minutes.