Official FlightLine 1600mm P-51D Mustang Thread

[xviper]

I have searched for years to find a 4-blade prop that would work on the FMS 1700mm P-51 but to no avail. The closest I came was this German company but their props are very expensive and may not be in the size I need.

https://www.ramoser.de/home_d/varioprop_d/varioprop_d.html

Most one-piece 4-bladers don't even come close to the size needed for the Mustang.

[Elbee]

Most one-piece 4-bladers don't even come close to the size needed for the Mustang.

X,

What would be the ideal size in a 4-blade prop for this model?

Have you changed out the electric motor for one with more grunt/RPM?

Back in the 'days or yore' we built larger 4-bladed props from 2 bladed props.

These were 'Rev-Up" maple props with the wide blades.

Sometimes by notching one against the other and using epoxy and metal pins to build one prop and sometimes by machining/building a back plate that would allow for using a portion of the prop & hub of four 2-bladed props.

I never had one come apart, but it certainly could depending on use/abuse.

Best, LB

[xviper]

X,

What would be the ideal size in a 4-blade prop for this model?

Have you changed out the electric motor for one with more grunt/RPM?

Back in the 'days or yore' we built larger 4-bladed props from 2 bladed props.

These were 'Rev-Up" maple props with the wide blades.

Sometimes by notching one against the other and using epoxy and metal pins to build one prop and sometimes by machining/building a back plate that would allow for using a portion of the prop & hub of four 2-bladed props.

I never had one come apart, but it certainly could depending on use/abuse.

Best, LB

Hugh and I were referencing the FMS 1700mm 'Stang. Mine is already modified with the power system from the Flightline 1600mm P-51. As such, I'm using the stock F/L prop (16x12x4) because I worry that the stock FMS prop might come apart given the F/L motor spins ~100kv faster. Ideally, I would have liked to have used the stock sized FMS prop (17x10x4). "Rule of thumb" - the F/L prop would be equivalent to a (17x11x4), so in that sense, the stock FMS prop "might" be able to take it but I didn't want to chance it as I've had a similar prop on the FMS 1700mm Corsair explode on 2 different models. One day, if I find a way to manufacture that metal brace that comes with the stock F/L and make it fit into the stock FMS prop hub, I'll give it a try.
Hugh is thinking of going with the Eflite Power 60 motor (470kv), 80kv more than the F/L motor. Using the stock FMS prop could be a risky proposition. However, having said that and knowing that RCInformer did try the same V1 FMS P-51 on 7 or 8 cells and it lived to tell the story would make me think that the stock FMS prop might take it. I'm just too chicken to try but with the metal F/L type brace, I would chance it.
I've read some modellers have considered that the proper "scale" prop for the FMS plane is closer to an 18" 4-blade and for the F/L plane, a 17" 4-blade. IMO, the F/L P-51 would look amazing with a bigger prop but one would have to take extra care so as to not nose over and break all kinds of stuff in the nose. I don't have the calculations to confirm or deny these "claims". The pitch for such props would be dependent on the motor used based upon an E-calc determination, something I'm not well versed in performing.

[Elbee]

xviper..

Makes sense, it would seem reasonable to think one could build props, even scale sized props, given current technologies.

As stated, we used to build 'em from maple 2-bladed props.

I still have a 3-bladed and a few 4-blade props I made from those days.

Best, LB

[xviper]

Those home made 4-bladers are spectacular.

[nuts-n-volts]

Scale Hamilton Standard for this 63" Mustang would be 19"

[Elbee]

Those home made 4-bladers are spectacular.

Thanks, X.

I ran those on a OS .40 FSR ABC and a OS .91S 4-Stroke.

A little much for the .40, though performance was really good and the drag at lower throttle was realistic.

The 3-blade was never run on an engine, as I didn't finish the model, Pica (Dave Platt design) Spitfire with a OS .61 FSR ABC.

Still have the partially built kit, wing needs top sheeting and fuselage needs empannage completed.

Big fun for little money in those days.

Best, LB

[Davegeee]

I just pulled the trigger on a new P-51D 1600mm model. I like the basic 357th FG paint schemes offered with the kit, but I will be changing it to an early D model without the tail fin fairing. I'll probahly use one from Pete Peterson's Hurry Home Honey aircraft paint schemes.Below is the proposed look of Pete Peterson's airplane, or one of several that he flew in combat. The picture below shows the top four aces of the 357th FG. From left to right, Richard " Pete" Peterson, Leonard "Kit" Carson, Johnny England, and Clarence "Bud" Anderson.

Davegee

[stitch]

Yup that's it,I have used gyro,s since 2015 if swings around at all turn gain down just a hair try that!😁

[xviper]

Yup that's it,I have used gyro,s since 2015 if swings around at all turn gain down just a hair try that!😁

To what is this in reference to? There is no quote.

[Davegeee]

I just pulled the trigger on a new P-51D 1600mm model. I like the basic 357th FG paint schemes offered with the kit, but I will be changing it to an early D model without the tail fin fairing. I'll probahly use one from Pete Peterson's Hurry Home Honey aircraft paint schemes.Below is the proposed look of Pete Peterson's airplane, or one of several that he flew in combat. The picture below shows the top four aces of the 357th FG. From left to right, Richard " Pete" Peterson, Leonard "Kit" Carson, Johnny England, and Clarence "Bud" Anderson.

Davegee

My new Fligthline 1600mm P-51D arrived in good shape yesterday. I immediately took everything out of the box, and was fairly impressed. A minor annoyance is the thin waterslide decals of the fuselage where the underlying colors of the invasion stripes show through. I'll have to repaint over those in time, but no big deal, for now.

I started working on the tail modification to make it an early D bubbletop before they added the vertical fin fairing or strake. They soon found out, as they did on the P-47, that cutting down the spine of the razorback on both airplanes exposed a new problem with longitudinal control of the aircraft. Kits were sent to airplanes in the field to correct this, and North American changed the production lines to include this fin, which solved the problem.

I have modified three different E Flite 1.5m P-51 models to this early D "finless" model for scale likeness to the real thing. There was absolutely no negative impact that I could tell in flying them with my mod. So, I'm going to try doing that with this new Flightline model. I started cutting on the leading edge of the vertical stab yesterday. I'll rebuild the scale looking part with balsa or bass wood. If all works out, it will look great, I think. But if it doesn't, I'm only working on the rudder/fin, and if I screw that up, I'm only out $30 as I get a new part from MRC and do a slightly "newer" version of the airplane with the strake on it as the model comes with it. I sorta look at it as the "free return" trajectory that the early Apollo missions did that would return them safely home to Earth if their plans didn't work out. I'm reasonably sure I can pull off this mod without having to do the "free return" mode and buy a new replacement rudder part. We'll see.

Cheers

Davegee

[jetfool]

Great News, Davegee. Looking forward to the mods. As well as the Corsair was constructed is the P-51 light years ahead in improvements?
My club mate has been flying the heck out of his FMS P-47 so when the winds calm down I will start flying mine. They can't all be hanger queens. LOL

Best Regards, Rex