Official FlightLine 1600mm B-25J Mitchell PNP Thread

[borntoolate]

The B-25 spare parts are now in inventory!!!

[Enzo_K]

Also a heads up for everybody. If your prop nut comes with a metal "bar" thing inside the thread. Reach out to MRC and get a replacement. This bar thing is not supposed to be there. Forcibly screwing on the prop nut will damage your motor shaft.

I talked to Freewing about this. They found 2 of these defective prop nuts in a batch of 200 of them. That doesn't mean there are only 2 of them in the batch we are receiving now in the US. Coz I happened to receive two defects. One of the bar was not in the way of screwing on to the motor shaft. But the other one destroyed some of the threads on one of my motor shafts. Luckily I was able to clean it off with some threading tool. And there was enough thread left for the nut to lock on to.

[Enzo_K]

Got started on my build and have the following updates on the scale rims. Thingiverse

The OEM nose gear wheel measures 2.4inch and has very little radial clearance to the support strut. The Robart 2.5inch wheel measures ~2.64inch which results in interference with the support strut. I will evaluate the Robart 2.25inch wheel as a possible mitigation for this issue. Hope it fits without modification to the rim.

Metal finish on the nose gear strut look pretty bad. Hope the metal structural integrity isn't compromised.

The OEM main tires measure 3.33inch and the Robart 3.5inch measure ~3.53inch. The increased diameter can cause interference between the outboard gear door and the Robart tire. Moving the wheel inboard can address this issue. Removing the OEM 1.75mm aluminum spacer will create space for the outboard gear door to close. A ~1mm washer may replace the spacer with minor adjustment of the outer gear door push rod.

The 3.5inch looks great but the fit to the gear door remains a close fit. I don't think the tires touch the doors on my setup. However, if you prefer more clearance, Robart 3.25inch should fit on the printed rims also.

PS - Thanks JD for the feedback!

Really appreciate the effort.

Some experience sharing. Robart wheels are also a bit thicker than the stock wheels. But if you make the rim thinner. When you squish the rubber tires, they "zoom-out" some. So I think the 2.25" will probably be a better choice for the nose. Same goes for the mains.

Best of luck with the mod. Looking forward to getting this mod for mine.

[Enzo_K]

Mike, Welcome to Hobby Squawk, Sir.

If you are able, post a few pictures of your issue.

Uncertain about the heat explanation, as the whole box would have to 'heat soak' down to the paint finish.

With all that 'foam and cardboard' inbetween, the airframe is well insulated.

If there is a real issue, document it!

Motion RC has great Customer Service.

Best, LB

Have the same issue on MANY Freewing/Flightline products. Dating back as early as late 2021 (Been a Freewing customer for years, early 2022 or late 2021 was the first time I encountered this issue)

I have a whole story to share if somebody is interested. I will cut it short here: MRC CS is a joke. I don't wanna mention names. But if you are talking with someone's name starts with a D & an M. You are better off just rubbing it in.

This "Gatoring" issue has been going on for almost 2 years. And no one at MRC ever wanted to address it.

I am currently arguing with MRC about my B25. Screenshots from Arthur RC's video show how bad some of the "gatoring" is. Some of them are minor. Like my Ta152 and Mirage. You could probably deal with it. Some of them are just unbearable. Like my P38, B25 & A6.

My speculation on this is the "Gatoring" happened during sea transfers. Which I think MRC is in charge of, correct me if I'm wrong. Because none of the social media in mainland China have I ever heard about this "Gatoring" issue complain. Nor has any of my friends in China ever experienced this "Gatoring" issue from Freewing/ Flightline products. At least not on a large scale (small imperfections are acceptable, but this is way beyond).
Edited 1: I don't think it is caused by sitting at the US customs for inspections. As Arthur RC is located in France, and received his B25 in early August. Also, it doesn't explain past "Gatoring" on other models.

Here are some examples of the A6 and the B25. Open attachments to see more life-like gators! Lol


BTW, the maiden flight of my B25. And my review:

Decent flying characteristics. 15m + flight time on 6000mah 6S pack.

Goes together nicely, took me about 15m to assemble.

The details are decent in general.

Pros: Great landing gear details. Rotatable top turret (used a 360 servo to operate it). Functional bomb bay (a little bit too shallow to fit anything).

Cons: Did not come with a pitot tube on the starboard side wing (Added one myself using a coffee straw).
Added a few antenna details along the rear part of the fuselage.
A lot of the panel lines are missing. The flaps, elevators & rudders are completely blank. A few panel lines are also missing from the wing top & bottom, as well as along the fuselage. Ended up adding them myself.

https://www.youtube.com/watch?v=ha95x_uqLn4

[rlcamden]

Received my B-25 last week. Had it together in about an hour. My club had our fall fly-in the past Saturday. It was a little cold and windy, but non the less, the plane handled it perfectly. The design and flight characteristics are excellent. Keep it up Flightline.

[Fast N Light]

Anyone have the ESC calibration instructions? I didn't see anything on the Motion site. My 1st twin engine plane so I want to minimize the chances of messing up the beep, beep, beep...

Did the basics: Tx on, 100% full throttle, motor on switch. Connect battery to ESC, beep beep, move throttle to 0%. Heard beep beep beep beep beep beep. Seems to be working OK.

[Fast N Light]

Got started on my build and have the following updates on the scale rims. Thingiverse

The OEM nose gear wheel measures 2.4inch and has very little radial clearance to the support strut. The Robart 2.5inch wheel measures ~2.64inch which results in interference with the support strut. I will evaluate the Robart 2.25inch wheel as a possible mitigation for this issue. Hope it fits without modification to the rim.

Metal finish on the nose gear strut look pretty bad. Hope the metal structural integrity isn't compromised.

The OEM main tires measure 3.33inch and the Robart 3.5inch measure ~3.53inch. The increased diameter can cause interference between the outboard gear door and the Robart tire. Moving the wheel inboard can address this issue. Removing the OEM 1.75mm aluminum spacer will create space for the outboard gear door to close. A ~1mm washer may replace the spacer with minor adjustment of the outer gear door push rod.

The 3.5inch looks great but the fit to the gear door remains a close fit. I don't think the tires touch the doors on my setup. However, if you prefer more clearance, Robart 3.25inch should fit on the printed rims also.

PS - Thanks JD for the feedback!

[Jdcrow]

It is such a nice warbird. And thankfully as a bomber, it actually has that capability.

[Fast N Light]

Look who showed up this evening....

[desertdrifter7]

I have quite a bit more flaps in mine, 3/4 and 1 1/2” from memory. I have maybe 60 flights on mine that way.

Evan, I saw your posting. That would be 19 and 38.1 mm respectively. I will give that a shot. Thank you.

[Evan D]

I have quite a bit more flaps in mine, 3/4 and 1 1/2” from memory. I have maybe 60 flights on mine that way.

[desertdrifter7]

Have mercy. I must be brain dead. I reviewed the manual again and lo and behold, I found the flap settings. Completely missed them.

[desertdrifter7]

Question: What are you guys using as flap settings. I am going to review the previous posts but I thought I would ask. If the flap settings are in the manual, I must have missed them. I saw the elevator mix suggestion in the manual.

[desertdrifter7]

I put my plane together. Although the cardboard box was extremely damaged, not even a scratch on the plane itself. Everything was perfect thanks to the way MotionRC packs their planes for shipping. The plane itself went together even more easily than the videos demonstrated. The only challenge I had was getting the wing spars lined up. The wing takedown is marvelous. My spectrum receiver, that was a problem but that isn't MotionRC's concern. Got that squared away as well.

[RCAZDES20]

I finally received mine and the surfaces of -some- parts (especially the main fuselage) are definitely rougher than any of the online pictures or videos indicate they should be (foam appears somewhat more gatored, with large swaths of visible foam cells).

Would excessive heat exposure during shipping cause these surfaces to become more pebbled?

-Mike

Possibly-maybe if it was packed on the top and/or sides of the intermodal container. Temps in the California holding yard for all them weeks was probably very warm-and very toasty inside the metal oven container unless it was staged inside a building or under cover all them weeks in the queue. I received my today and every part is in pristine condition true to MRC QC I've experienced in the past. MY only gripe for now is the cheap latching method used for the canopy. The retractable pin in the fuse just sticks into foam in the canopy. At this price point MRC should have provided a plastic reinforcement hard point to receive the pin. Yes, they did this also on the Bronco OV10 I have but its only a $400 plane.

[Elbee]

I finally received mine and the surfaces of -some- parts (especially the main fuselage) are definitely rougher than any of the online pictures or videos indicate they should be (foam appears somewhat more gatored, with large swaths of visible foam cells).

Would excessive heat exposure during shipping cause these surfaces to become more pebbled?

-Mike

Mike, Welcome to Hobby Squawk, Sir.

If you are able, post a few pictures of your issue.

Uncertain about the heat explanation, as the whole box would have to 'heat soak' down to the paint finish.

With all that 'foam and cardboard' inbetween, the airframe is well insulated.

If there is a real issue, document it!

Motion RC has great Customer Service.

Best, LB

[Pboilermaker]

I finally received mine and the surfaces of -some- parts (especially the main fuselage) are definitely rougher than any of the online pictures or videos indicate they should be (foam appears somewhat more gatored, with large swaths of visible foam cells).

Would excessive heat exposure during shipping cause these surfaces to become more pebbled?

-Mike

[Evan D]

I’d have that open so fast….

is there any damage???

[davegee]

I received my B-25 today. When it was delivered the package looked like somebody had tried to skin it. I have notified Motion RC in the even I find damaged parts when I unbox it tomorrow. But I can tell you I wasn't a happy camper.

Looks like Ace Ventura delivered it! Hopefully the interior is in good shape.

Davegee

[desertdrifter7]

I received my B-25 today. When it was delivered the package looked like somebody had tried to skin it. I have notified Motion RC in the even I find damaged parts when I unbox it tomorrow. But I can tell you I wasn't a happy camper.