Official Freewing 80mm MiG-21 Fishbed Thread

[paulrkytek]

todays test flight with new 1920kv 9 blade in-runner went well. sounds good, plenty of power flew off grass 1/2 flaps into 5mph wind no problem.

[paulrkytek]

After previous flight in totally grey skies I decided to improve visibility with a few more red highlights, now moving towards Russian Knights colours. For some reason the external shots are pink as opposed to the internal shots which are the correct red ?

[rms]

Began to fly low High Alpha stuff...got to low speed on a dogleg landing, ending i broken landing gears...So nice this types of planes are easy to fix...

https://www.youtube.com/watch?v=k8FaluORA-s

[rms]

More Mig 21 flying

https://www.youtube.com/watch?v=k8FaluORA-s

[rms]

Installed new Freewing 9 blade 1920kv in-runner in the Mig today. Very well balanced fan out of the box. Thrust feels good. Will test fly tomorrow. Power meter readings static in the plane on a 6s 4500mah 40c zippy. 24.6v 85 amps 1997 watts.. For anyone interested I found basic motor power details on this link : -
https://fr.aliexpress.com/item/40010...19419660%22%7D

Very nice colors 👍

[rms]

More Mig 21 flying...Very nice flying plane. Did a nice last landing👍

https://www.youtube.com/watch?v=nNZ7FfrSAZA

[Dave Wave]

Is there a 3DP .STL file for a centerline fuel tank for this model? I did not find one on Thingiverse.

Thanks!

[SanExup]

Dave Wave I've seen two Mig21s with centerline tanks. They just used one of the supplied tanks and installed the mounts from a spare plastic parts set from another plane. I can't remember the which spare parts set but it looked like such a clean and easy mod that I plan on doing it on my Mig and maybe on the Mirage as well using a smaller tank than the scale ones supplied.

[T- Elbert]

San exup is correct , I did a centerline tank
mod on 2 mig 21’s using the stock tanks and hardware then added rocket pods to the wings

[MeyerVW]

Thinking about one of these. I see the blue version now has a 90mm fan. Has it always had that? How does it compare to the silver 80mm version? I fly off asphalt.

[paulrkytek]

Thinking about one of these. I see the blue version now has a 90mm fan. Has it always had that? How does it compare to the silver 80mm version? I fly off asphalt.

80mm on USA and EU website so where did you get that info ?

[MeyerVW]

Motion rc site say new motor and fan.
Features:

• New! 90mm 9-blade ducted fan and powerful 3658-1920Kv brushless inrunner motor provides awesome power and incredible real life jet turbine sound

Is that an error on their end? Seems like that should say 80mm.

[MeyerVW]

I bought the silver/green version. Happy to have one one the way.

[paulrkytek]

I bought the silver/green version. Happy to have one one the way.

• NEW! Powered by a new 9-blade EDF with all-new 3658-1920Kv brushless inrunner motor and 100A ESC is what it says ight now but definitely80mm not 90mm so are you sure ????. the 3658-1920kv motor refers to the 80mm edf, I have 3 of them in my Avanti, L39 and the Mig 21 in my post 784 above.

[radfordc]

Motion rc site say new motor and fan.
Features:

• New! 90mm 9-blade ducted fan and powerful 3658-1920Kv brushless inrunner motor provides awesome power and incredible real life jet turbine sound

Is that an error on their end? Seems like that should say 80mm.

Pretty sure it's a typo.

[MeyerVW]

That was only for the blue grey version. The green silver version did not say that.

[paulrkytek]

That was only for the blue grey version. The green silver version did not say that.

USA site only, Typo , 2 places states 80mm, it states 90mm under the features part of the description, no doubt lack of proof reading once again!!! It Is supposed to be a new website layout so no doubt there will be a few anomalies.

[Dave Wave]

I am trying to get the stock MLG wheels off. The grub screw looks like it has loctite on it and a 1.5 mm hex is a loose fit. I tried heating with a soldering iron, but no luck. Any tips/ tricks to getting the screw out?

[MeyerVW]

I am trying to get the stock MLG wheels off. The grub screw looks like it has loctite on it and a 1.5 mm hex is a loose fit. I tried heating with a soldering iron, but no luck. Any tips/ tricks to getting the screw out?

I have found that SAE allens will fit better in some metric grub screws. And some metrics will fit better in SAE grub screws. I use both knowing the hardware is most likely metric. Also put the allen in the screw and give it a few taps with a hammer to loosen it up. Heat works too sometimes.

[MeyerVW]

Here it is. Love the look I got and I am very happy so far. Waiting on a nose brace and fire booty. When flap are deployed is there any need for elevator trim?