Official FlightLine RC 2000mm B-24D/J Liberator Thread

[mshagg]

Ive had my eye on this bird for some time - it's a lot of plane for the money and looks like lots of fun customising.

Only thing putting me off is the odd battery configuration, going by the book it would require another set of packs.

Has anyone y-harnessed the two ESCs to the one pack? I've got some 6200mah 4s bricks from another plane and it would be fantastic to be able to use them.

[Mikdys]

Made a mount to fit in the front turret to hold my Muvi cam ( https://www.amazon.co.uk/Veho-Camcor...43590473&psc=1 ):

[davegee]

I really like your choice of markings, NoDirt! I remember building a Revell kit years ago and ended up modeling the exact same bird!

Nice Job on the markings and finish. Your plane is of my dad's squadron and bomb group (446th BG, 705th BS) in WWII. The tail markings were changed to what you have yours painted a few months after the unit started combat operations in December 1943. I made the markings of my dad's unit from when they first arrived in England for my plane. You can see on the vertical tails the "circle H" that was used until the high vis colors came in. Your model looks great in the air!

[WrightBrosRC]

WB, Clever video, Sir. Happy you got her back safely and kudos on the recovery on the first check flight. Best, LB

Thank you LB, very kind.

[Elbee]

Good weather is getting scarce around here. Had some sun the other day and woke up to the B24 calling my name so we went to the field for a quick flight or two. It didn't go as planned...

WB, Clever video, Sir. Happy you got her back safely and kudos on the recovery on the first check flight. Best, LB

[CarToon]

CarToon,

I put the Aspire with 2 TT-25's in both my Olive and Silver B-24, with the multi-engine sound pack. Love it. Have Mr. RC Sound also in my 1600mm Spitfire, a 1700mm P-51, a 1400mm Corsair, a P2-BiPlane and even my Beast 60E. Love the system. It was a little tough getting it in the B-24's though and added heat sink to both transducers as well as addition air scoops for cooling. Trying to get the funds allocated for the new Flightline Corsair, and you can be sure an aspire will go in that. People at the field always get a kick out of the sound, especially the gas flyers. Did the video after initial build but since that time I've do a little additional painting and built out the cockpits.

Link to a bad video of the B-24 sound system: https://youtu.be/PhoFY59hrE4

Another bad video of the system in a P-51: https://youtu.be/7dWEjPREUkA

Thanks! Nice looking Liberator, too!

[WrightBrosRC]

I enjoyed your video, that was fun to watch. That's pretty weird, maybe it was just a gremlin.

Your maiden flight however, its obvious that you broke a prop on takeoff and man you were lucky that you were able to save it! Great job.

Thx! Yeah, hard to explain the gear thing. The maiden was definitely a pilot error prop strike.

[themudduck]

I enjoyed your video, that was fun to watch. That's pretty weird, maybe it was just a gremlin.

Your maiden flight however, its obvious that you broke a prop on takeoff and man you were lucky that you were able to save it! Great job.

[Hardway]

Funny... Close call on the other bird... Wow

[WrightBrosRC]

Good weather is getting scarce around here. Had some sun the other day and woke up to the B24 calling my name so we went to the field for a quick flight or two. It didn't go as planned...

[Hardway]

Welcome to Hobby Squawk! Great job! Jerry

[Hardway]

Minor detail!

[Superbfan1980]

hey ho,

we had perfect weather conditions yesterday and i performed 3 perfect flights. Nice plane but i need to keep in mind to
release the retracts before landing :-)

thx 4 ur help guys

[F106DeltaDart]

Put 2 flights on my B-24 yesterday on 3S. Flew for 6 minutes, landed and checked voltage and had 70% left in the pack! Really love how this bird flies. I hope Flightline has another bomber in the pipeline soon!

[themudduck]

themudduck thx for your tips.

All my rc-planes are equipped with 4s batterys , so i will stay on 4s with the liberator to keep it simple for me :-)

Right now i added 30g lead( 15g each side) on the back-console at it seems perfectly balanced with the 2 x 4S 4000mAh. ( just a little „touch“ of nose-heavy)

( unfortunately i had to insert the machineguns to fit the b-24 fully into my car)

Just waiting for better weather conditions to peform the next flight. Germany => always rain :-(

Superbfan1980, we will anxiously wait for your flight report as soon as it stops raining!!

[Superbfan1980]

themudduck thx for your tips.

All my rc-planes are equipped with 4s batterys , so i will stay on 4s with the liberator to keep it simple for me :-)

Right now i added 30g lead( 15g each side) on the back-console at it seems perfectly balanced with the 2 x 4S 4000mAh. ( just a little „touch“ of nose-heavy)

( unfortunately i had to insert the machineguns to fit the b-24 fully into my car)

Just waiting for better weather conditions to peform the next flight. Germany => always rain :-(

[themudduck]

Hey there Superbfan1980, welcome to the group. The manual specifies that the CG should be 76mm back from the LE of the wing.
Exactly as in your picture.

With this model, there is not a big difference with the landing gear up or down, but most of us feel that you should balance with the landing gear UP (since that is the flying position). With the gear down, the CG will move slightly backwards but only a very small amount and its not enough to make any difference with this model.

So at 76mm... with this model you will find that if you set it here, it is actually nose-heavy. You will have an easier time pulling the nose up for landing if you balance it a little further back, say 78 or 79mm. Motion tends to recommend a nose-heavy starting point on most of their planes, which is an excellent way to start. Nose-heavy planes fly very well. But you can move it back a little.

Where does your model balance with the batteries positioned as shown in your picture?

If you need to move the batteries forward, try using a bigger battery instead of lead (plum).

Many of us have found that this model flies very well using 3-cell packs. With the 4-cell pack that Motion recommends, this model flies at about 600mph (scale speed) and will go straight up vertical and accelerate. With a 3-cell pack it is still overpowered. With 3-cell packs the plane is lighter and flies for a long time.

One piece of advice from me to you..... be very careful during takeoff, avoid letting the outboard propeller hit the ground. That is the only thing you need to worry about - this plane is a really nice flying model, very easy to handle, it is stable and responsive and easy to land. (My advice is worth at least 2 cents!)

[Superbfan1980]

Superbfan1980 Welcome to Hobby Squawk, Superbfan1980! I hope you find a nice hobby home here.

Where and how are you measuring the CG for your B-24? Model upright with gear down? Or? I've been flying this bird for almost three years and have never needed to add any ballast (I assume that's what you mean when you say "add some plum). Would you be able to post a photo of your current pack location and CG measurement?

Hi Alpha, thx for ur fast reply.
i measured 76mm of the front-wing.
I mixed up the languages , J.
“plum“ is the latin word for „lead“.
( i am from Germany)


pictures attached

[Alpha]

Hi Folks ,

hope u r doing well.

Just received a Freewing B-24 and already assembled.
i will use some 4S 4000mAh Batterys , but i am not really
sure about the cg. The manual shows 76mm, but with the
installed batterys its really tail-heavy at 76mm.

I ve got only 7mm to move the batteries forward or backward.

Iam not sure if i need to add some plum ?

Superbfan1980 Welcome to Hobby Squawk, Superbfan1980! I hope you find a nice hobby home here.

Where and how are you measuring the CG for your B-24? Model upright with gear down? Or? I've been flying this bird for almost three years and have never needed to add any ballast (I assume that's what you mean when you say "add some plum). Would you be able to post a photo of your current pack location and CG measurement?

[Superbfan1980]

Hi Folks ,

hope u r doing well.

Just received a Freewing B-24 and already assembled.
i will use some 4S 4000mAh Batterys , but i am not really
sure about the cg. The manual shows 76mm, but with the
installed batterys its really tail-heavy at 76mm.

I ve got only 7mm to move the batteries forward or backward.

Iam not sure if i need to add some plum ?