Official Freewing 80mm EDF F-86 Sabre Thread

[Model jet juggernaut]

I bet that can be fixed. Near boiling water and joint compound where needed. Sand n paint.

[Evoman]

I loved this edf but it need a lot of runway off grass with wind. I even upgraded from stock to a 1850kv motor and fan and went with larger wheels.
Today she flew her last flight. Dead calm full flaps and it took forever to roll out. Anyways she took flight and then my depth perception went bonkers... dead into the trees! Oops!!
She is an awesome flyer once airborne!

I think I’ll hold off on buy another until the make a larger one with more power.

Sorry about your loss. I also recently crashed my T-28. But after a closer look I realized the wings were salvageable using some good old Foam-Tac glue. Then I just bought a new fuselage.
In your case you could just rebuild it by just getting a new fuselage if you can't salvage the right wing. But a new fuselage and wings will only cost you $118. I would say its worth rebuilding it.

[Helmsman52]

So when I bought this 80mm Freewing F-86 I read through the forums about the "tail sit" and set my Admiral Pro 4000 in and hit the grass field. I set the flaps at about a third and off I went with a longer than expected roll out into a 8mph wind. She flew like a champ! So after about three more flights even one without flaps on take to notice any difference. Well, I decide to upgrade main wheels to 2.25 dave brown lite treads and a 1850kv motor and fan housing being had a CC 100 esc just laying around. After all the mods I didn't notice any difference beside the stock swoosh sound not there. So after walking about 80-90 yards to get the plane from not taking off several times I swapped out the 1750kv can/shaft and put stock fan with the 1850kv guts, swoosh is back!

Crash day I took off from the opposite side of the field because of the setting sun with full flaps and in a dead calm air the sabre took off after about 70 yards lol. made a pass around our pit area where only two trees within our flying and wham! Shred city! She hit so hard that the rx was sitting in the grass with nothing connected.

After all that I started thinking about the battery placement... if I went back a little farther, inch or so from the tail sit maybe she would have taken off a little sooner? Maybe go from a 4000 to a 5000 all the way aft?
Great little jet IMO still debating on buying another but as soon as I do there will be a V2 or a 90mm lol

[Beeg]

Its around a hundred feet with hard packed dirt/gravel.

if you set your CG back around 200 with the “Tail Sit test” you might be able to horse it off on takeoff in 100ft but you’ll need more than that for landing to get it stopped unless you land short in the grass or don’t mind over running into the grass. I’m guessing there are no fences, bleachers or back stops to worry about?
Most folks don’t set their CG far enough aft on this model. It takes off and lands much better if you cramm everything (battery, ESC, etc.) as far aft as you possibly can even if you have to do a little carving.

if you’re not familiar with the “Hondajets” “Tail Sit Test” go here and do a search for tail sit test..

https://www.rcgroups.com/forums/showthread.php?2065578-New-Freewing-80mm-F-86

[Grady.c]

Would be pretty tight even if you've flown it before and comfortable with it's performance. Without knowing how wide open the area is or how much "runway" it has it's kind of hard to say for sure.

Its around a hundred feet with hard packed dirt/gravel.

[Ron1950]

bummer...sell the parts and make some money back

[RCjetdude]

I loved this edf but it need a lot of runway off grass with wind. I even upgraded from stock to a 1850kv motor and fan and went with larger wheels.
Today she flew her last flight. Dead calm full flaps and it took forever to roll out. Anyways she took flight and then my depth perception went bonkers... dead into the trees! Oops!!
She is an awesome flyer once airborne!

I think I’ll hold off on buy another until the make a larger one with more power.

Ohh no....sorry man.

[Helmsman52]

I loved this edf but it need a lot of runway off grass with wind. I even upgraded from stock to a 1850kv motor and fan and went with larger wheels.
Today she flew her last flight. Dead calm full flaps and it took forever to roll out. Anyways she took flight and then my depth perception went bonkers... dead into the trees! Oops!!
She is an awesome flyer once airborne!

I think I’ll hold off on buy another until the make a larger one with more power.

[Beeg]

Anyone know if this bird will be okay on a softball field?

Would be pretty tight even if you've flown it before and comfortable with it's performance. Without knowing how wide open the area is or how much "runway" it has it's kind of hard to say for sure.

[Grady.c]

Anyone know if this bird will be okay on a softball field?

[Ron1950]

thanks lon I see I can make it fit

ok its a very easy upgrade if all the parts are available...but sense the 100a esc for the upgrade isn't in stock I ordered the a4/mig21 100a esc with very long battery and throttle wires and very short motor wires on other end...still no real big deal...bought 3 pecies of 8in 12 gage wire installed the 4mm connectors installed new fan and its done..cut the battery wires to about 6 inches and resoldered the ec5 connector,.I didn't cut the throttle wire that is probably a foot long just wire tied it to about 4 inches and plugged it in...easy fix even for a old fart like me....

[Lon]

anyone got pics of where they put there 100a esc for the upgrade motor? thanks

On both my F-86s, I was able to locate my upgrade ESC as in the picture. I've had no issues with the ESC temp in this location with my battery over the top of it for CG. I did a little carving of foam for the receiver in it's location...maybe just a little for the ESC.

[RCjetdude]

I will get you a pic of mine soon.

[Ron1950]

anyone got pics of where they put there 100a esc for the upgrade motor? thanks

[Ron1950]

I was told Thursday by motion that's its a very rear occurance...I told him he was wrong and that it happens all the time

[PlaneDoc]

The right gear came out on mine on its 4th flight. Also because of lack of glue.:Angry:

[Ron1950]

the 100a esc for the f86 upgrade is out of stock as most things that I need always are lol...so I got the a4 100a esc and the wires are way too long...I can cut and replace the ec5 plug but ill just coil up the throttle plug . my question is will the esc stay cool enough in the wire tunnel as it wont fit in stock location...alo do I plug the stock esc hole or leave it open for the cooling air? whats everyone else doing to set up the upgrade?

[Ron1950]

got the maiden out of the way today...all went pretty good landed a little fast so turned left and right and the left main pulled out of the wing not glued in worth a darn...friends f86 flew twice and on second landing same thing happened..his didn't have any glue on the plastic box that goes into wing...when will freewing start using some glue on these things???

[Ron1950]

got my new f86 put together after a tree jumped in front of my old one...now of course the wind is a howling here in central tx...still need too set the throws but sure helped that I just had to bind it to old settings on tx to start...also bought the 100a esc for future motor/fan upgrade

[Boots Whirlygig]

is that a4 upgrade the metal shrouded fan? the f86 fan weighs a ton!!!

The A4 and F-86 share the same metal shroud only.
The A4 uses a much lighter rotor and a higher KV motor.
The motor shaft lengths are different. The F-86 motor has a longer shaft as the rotor is longer, with higher pitch blades, so you can’t just swap in the A-4 motor without also swapping the rotor.