Official Freewing 90mm F-16 Falcon Thread

[Phantom]

That looks like the right settings. I confess I am not an expert on timing settings but I noticed that all the Freewing PNP models come setup on medium which is actually "auto" where the ESC figures out best timing for the motor. I had a friend set timing to high once on a 90mm jet to test and yes the thrust was a bit higher but it drained his battery so fast he LVC'd in the air and had to land after just a 2min flight. Maybe someone here can explain the timing issue better?

Makes sense to me medium timing it is then. Anyone know of what the last setting is for? The reserved item, option 1 or 2 is used for?

[Phantom]

Just stuck this same 8S set up in my ARF FW F-15

Have you flown her with it yet? Your thoughts?

[Phantom]

Anyone else noticed the 2 mock barrels simulating the 20mm cannon? I just did, that's awesome!

[Phantom]

Update the 8s power setup was a winner. True vertical, 45 to 75 degree banking turns at half throttle, straight and level flight at about 30 percent throttle.

While installing this setup I noticed that the interior of the foam thrust tube has a 2 or 3 cm narrower than the exit of the 90mm fan shroud so I did a bit of carving to smooth out the exit.

There was no way to put greater than 3300mah worth of fuel on board and keep CG, without doing some more carving. I carved the fuselage walls, the top hatch, and relocated the hatch and fuselage magnets. That allowed up to 6,000mah of 8s to be installed although I only flew with 5,000mah on board.

First flight was amazing, I flew with two 4s 5,000mah 70C from CHNL. I was a little nose heavy as I chose to be conservative on the CG, that was a mistake especially with the flaps causing the nose to drop even more. Zeroed the flaps and with full up elevons and a little extra speed she landed no problems.

Decided to do a little plug and play/programming at the airfield. Change from elevons and flaps to elevator and flaperons. Went back up with a pair of CNHL Black 4s, 5,000mah 65C batteries. I preferred this set up for the majority of the flight profile, however I flaps and elevons control is much better for a landing profile. My old JR 10S radio can't be set up for both, atleast not that I have figured out. So take two will be switching to the FrSky Taranis hopefully I can program what I want for flight modes.

So I'm on the downwind I select gear down they stopped about 3/4 of the way down, so I decided to do a low pass, the plan was to recycle the gear and hope for the best. So I turned base....

Only she didn't turn base, she kept going straight on a gentle decent bleeding airspeed, I tried to power up and nothing, there were 2 nitro planes flying so I couldn't hear the whine/whoosh of the spool up. It was about that time when the stall happened and she became the prettiest lawn dart you ever did see...

[Phantom]

So the new set of wings, fuselage, hatch, and nose cone that I have on standby will be going together and everything transferred over. Don't know what happened but hopefully the new reciever will solve it.

[PaulZ]

Update the 8s power setup was a winner. True vertical, 45 to 75 degree banking turns at half throttle, straight and level flight at about 30 percent throttle.

While installing this setup I noticed that the interior of the foam thrust tube has a 2 or 3 cm narrower than the exit of the 90mm fan shroud so I did a bit of carving to smooth out the exit.

There was no way to put greater than 3300mah worth of fuel on board and keep CG, without doing some more carving. I carved the fuselage walls, the top hatch, and relocated the hatch and fuselage magnets. That allowed up to 6,000mah of 8s to be installed although I only flew with 5,000mah on board.

First flight was amazing, I flew with two 4s 5,000mah 70C from CHNL. I was a little nose heavy as I chose to be conservative on the CG, that was a mistake especially with the flaps causing the nose to drop even more. Zeroed the flaps and with full up elevons and a little extra speed she landed no problems.

Decided to do a little plug and play/programming at the airfield. Change from elevons and flaps to elevator and flaperons. Went back up with a pair of CNHL Black 4s, 5,000mah 65C batteries. I preferred this set up for the majority of the flight profile, however I flaps and elevons control is much better for a landing profile. My old JR 10S radio can't be set up for both, atleast not that I have figured out. So take two will be switching to the FrSky Taranis hopefully I can program what I want for flight modes.

So I'm on the downwind I select gear down they stopped about 3/4 of the way down, so I decided to do a low pass, the plan was to recycle the gear and hope for the best. So I turned base....

Only she didn't turn base, she kept going straight on a gentle decent bleeding airspeed, I tried to power up and nothing, there were 2 nitro planes flying so I couldn't hear the whine/whoosh of the spool up. It was about that time when the stall happened and she became the prettiest lawn dart you ever did see...

Wow! So sorry to see this Phantom...

[Phantom]

Wow! So sorry to see this Phantom...

No worries, this is probably the 4th or 5th crash over my RC hobby career that is due to low voltage cutoff, brown out, or loss of signal. It happens, and I'm good with it, I've got the stuff already at the house to fix her up like new, and now I have a power system that works, so here's to take two!

[Aros]

Sorry to hear that but awesome attitude!

[Phantom]

Some progress made on the new fuselage...removed 9mm per side to increase the width of the battery bay by 18mm

[Phantom]

The magnets will be relocated outboard on both the fuselage and the hatch

[Phantom]

Next I leveled the battery bay floor started at 2mm in the front working back to approximately 10mm at the back increasing the overall depth of the battery compartment. I figured out just how much I could remove safely by dissecting my crashed fuselage.

[Phantom]

The pile of foam removed...

[Phantom]

Increasing the battery position options and adding additional straps and the tray from the wrecked fuselage...

[Hugh Wiedman]

Increasing the battery position options and adding additional straps and the tray from the wrecked fuselage...

WOW, you my friend, have some serious skills, and I'm sure a large amount of patience. I LIKE IT!

[Phantom]

Thanks Hugh,

Next I removed all excess foam on the hatch and the 9mm on either side to widen it to match the battery bay. Magnets moved to the edges.

[Phantom]

Just about got everything swapped over to the new fuselage, checking all electronics as I go... I went to power up the motor and nothing. The ESC is the Hobbywing Flyfun 150A-HV-8S with no BEC. It comes with the a Hobbywing UBEC 5A, Max 7.5A output. The UBEC comes on with the appropriate line per the manual. The ESC flashes twice, pause then flashes twice again. This pattern is continuous. No beeping no sound whatsoever.

So I plug in the Hobbywing programming card to perhaps reload the settings. As per the instructions and the first time I did it, I plugged in the 4.8v reciever battery, then the short lead programming lead on the ESC to the programming card, then per the instructions just like when I initially programmed it I plugged in the main battery, the first time the card lit up and I proceeded to program it. This time, the card doesn't light up at all.

It's Christmas of course, so no help from MRC today, so I thought I'd get a jump on possible advice from the forum here.

Guessing this may be the reason for my mishap...I'd hate to think that after only 4 flights my 139.00 ESC has kicked the bucket...

[Bellke]

Ok, this plane is going to drive me up the wall. I've gotten past the issues of getting the new EDF to fit and I'm at the point I think I'm moving forward, then I literally take 2 steps back. Can anyone shed light on these?

1. Was able to bind the receiver and centered all the control services, everything looking good. Then one time after I plug the battery in I don't get the 6 beeps telling me all is good. I get the slow beeps about 1 sec apart. Plug it in a couple more time and all of a sudden everything works again. Now I go to check a couple of things and I'm not getting any power to the receiver. The lead from the ESC is plugged into the board, everything seems tight but no power to the receiver so I keep getting the slow beep. Any thoughts on what is causing this?

2. The other issue I had right before I ran into the receiver issue. I check the direction of aileron movement to make sure they're correct and I get full up deflection on the elevator in addition to the aileron movement. Ailerons the other direction give me full down elevator in addition to the aileron movement. Why the **^_&$%#* am I getting this??? I'm not doing anything fancy, no flaperons or elevons or anything. The radio is set for 1 aileron and elevator since to me, the board is acting like a Y connector and I have only 1 lead for the receiver for each control surface. But I was going to change it to the 2 ailerons and elevators to see if that was the issue, until I ran into the receiver issue.

I would appreciate any thoughts on either or both of these issues.

Thanks

[DCORSAIR]

Ok, this plane is going to drive me up the wall. I've gotten past the issues of getting the new EDF to fit and I'm at the point I think I'm moving forward, then I literally take 2 steps back. Can anyone shed light on these?

1. Was able to bind the receiver and centered all the control services, everything looking good. Then one time after I plug the battery in I don't get the 6 beeps telling me all is good. I get the slow beeps about 1 sec apart. Plug it in a couple more time and all of a sudden everything works again. Now I go to check a couple of things and I'm not getting any power to the receiver. The lead from the ESC is plugged into the board, everything seems tight but no power to the receiver so I keep getting the slow beep. Any thoughts on what is causing this?

2. The other issue I had right before I ran into the receiver issue. I check the direction of aileron movement to make sure they're correct and I get full up deflection on the elevator in addition to the aileron movement. Ailerons the other direction give me full down elevator in addition to the aileron movement. Why the **^_&$%#* am I getting this??? I'm not doing anything fancy, no flaperons or elevons or anything. The radio is set for 1 aileron and elevator since to me, the board is acting like a Y connector and I have only 1 lead for the receiver for each control surface. But I was going to change it to the 2 ailerons and elevators to see if that was the issue, until I ran into the receiver issue.

I would appreciate any thoughts on either or both of these issues.

Thanks

I have had five of the F-16 and not one issue, don't know why your having so much trouble with yours, call me again and maybe we can go over it, I would try a new board just for fun, I know you shouldn't have to replace it but for $11 I know I would try that. I think you need to trace down each servo and plug directly into your rx and bypass the board for now, just do one servo at a time and use a 4.8v Nicad or NiMH battery pk to power your rx and make sure all your controls are working properly, make sure your radio is on a new model as well and start all over, you need to post some pics of your radio and rx so we know what your using.

[C17loadmaster]

Sure! I used this fan/motor: http://www.fmsmodel.com/fms-90mm-12-...fan-with-motor and upgraded to this ESC: https://hobbyking.com/en_us/yep-150a...ontroller.html. Using the stock ESC is possible, but has has mixed results. My stock ESC died when using the FMS fan (even set to low timing), but others have used it with success. As Gooniac said, it is not all that much faster, but is much lighter and has much improved vertical climb performance.

That’s the same exact setup I have in mine. It seriously is the best. I have video of stock and FMS flights off grass I will get together.

[e4dragongunner]

That’s the same exact setup I have in mine. It seriously is the best. I have video of stock and FMS flights off grass I will get together.

Awesome, would love to see the comparison! :-)