Official Freewing 90mm F-16 V2 EDF Jet Thread

[Evan D]

I don't have a gyro in mine at that point.

[f4u ausie]

Oh wow. Mine is now 10 mm. Bhind Should I b nervous.. maybe sneek back to25 or just go to it. It has a plus as3x in it

[Evan D]

Where's your balance? About 25mm behind the factory CG is about right.

[f4u ausie]

Think I had to much elevator 8 mm more than high factory... Did that when on 6s. To pop it off the grass. 8 s gets off easily have reduced. Will try nose high bit further out.

[xviper]

Mine is also 8S. I fly it as it came. I can slow it down by opening up the speed brakes on final and getting into a nose high attitude about 100' from the apron. Then regulate the throttle so it doesn't fall too fast while keeping the nose high-ish. 8S, for me, tends to have plenty of poop and when I want a little more, I just use HV bats. The difference is noticeable but not enough to make me get more HV batteries. Today's newer batteries, even the lesser known ones seem to work quite well in my jets, even though the high "C" ratings are very much exaggerated.

[f4u ausie]

As always great info guys. The car analogy good!!! Evan at this stage it's regarding V2 F16.. we both have 8s. Think I will leave mine alone.. having enuf trouble landing it(compared to f4 phantom easy). My friend is retired so has more time to experiment .. but we r having a blast and do Wana get better thanx again

[Evan D]

Craig, what planes and set ups? Absolutely put a watt meter on anything first and after any changes. Many of the current FreeWing jets are at or even well over the rated amperage of the ESC in it. My 80mm's are 105-125A out of the box with a 100A. My 8S 90's are 115-125A on a 125A ESC. These are all on standard voltage batteries. HV are significantly more,

[xviper]

Timing change can be a tricky business. In general, increasing timing on EDFs may give a slight bump in power delivery at the expense of higher fuel consumption. I see it akin to timing on cars when we used to use timing lights and adjusting the distributor position (degrees advance or retard). For high performance engines, one could get an increase in output (with an increase in advance timing), giving the car a bit more get up and go, but if you kept the change over a period of time, you would notice it sucked more fuel. Keep increasing it and you eventually arrive at a point where the engine begins to stumble and hesitate. This is not entirely different from increasing gain on an RC airplane. Increase gain a bit too much and you get oscillation as speed increases, then you have to back it off. With a car, we used to have other parameters that could be adjusted to go along with timing to make it all run "better", such as, carb sizes, intake and exhaust tuning. On our planes, there is little else that is readily changeable to help accommodate timing changes, maybe bigger ESC (like large fuel line), more mah (like bigger gas tank) higher C (like stronger fuel pump), higher voltage (better fuel/additives).

For your EDF, try going to the next step up in timing and see how you like it. Reduce your flight time a little so you don't run out of battery and have to dead stick it in. Check battery usage at the end of the flight and compare with previous flights at the old (default) timing. Usually, default timing is more than adequate for how most people fly. If you look at the ESC's manual under the timing line, you will see (*) to show what the default setting is. You can try the next higher one and see what that does for you. Do a couple of ground runs up and down the runway (but don't take off) and if you notice and oddity in the way the EDF sounds, then put it back to default. Timing on these things usually are: low, medium, high, with some ESCs giving one other level thrown in there. Most of us will likely not feel or notice much difference.

Other opinion may vary.

[f4u ausie]

Hey guys hope U all well now the Nitty gritty.. my friend and I. Have now bought a machine to do change or adjust the ESC timing. A good thing. Mmm anyway I did the beep thing couple years ago with X vipers help. He sorted my problem so is. changing timing from factory settings. An advantage.. or r factory freewing settings generally good. I guess this applies to all. Or most 70 to 90 mm jets. What may. Be a reason to change timing . A different thread may have been order of th day... But this is it. Thanx in advance Craig

[Airguardian]

Lucky you!

[urrl]

Markham Park has lakes and canals near the airfield so that could be why there is almost always ground fog early mornings. Love it.😊

[Airguardian]

+1
Very rare around here though.

[EDF-Jetpilot]

Absolutely cool, I also enjoy flying when there's little fog!

[urrl]

[Airguardian]

Outstanding flying, as usual, and beautiful landing. Have to complement the video work as well, first class and excellent time of day to really show it off
🤙

Thanks!

The smoothness of the video is a mix of dad's dedication and quest to hold the camera as still as possible with a boatload of postprocessing I do afterwards on computer. Each video I post easily takes 1-2 days of work to smooth out. :')

[f4u ausie]

My dx7 was purchased as a 7 channel only I had to upgrade it.to plus.. To b a 14. 7 of which r ghost as hugh calls em. Not that I no how to use them. Mr tech not

[Evan D]

And while many Spektrum receivers with gyros do have the extra channels, virtual is what I call them, not all do especially older ones.

[Hugh Wiedman]

Hugh Wiedman,

When I grow up I want to be you.

Even my ol' Futaba 8J still confuses me.

Best, LB

Careful what you wish for.

Rereading that post I made several errors, not surprisingly. The channels don't go up to Aux 20, only Aux 15, as channels 1-5 are assigned throttle/aileron/elevator/rudder/gear, depending on the aircraft type you input because if you don't use a standard wing type and say if you program 2 separate flap servos, 2 aileron servos, 2 rudder servos and 2 elevator servos each will show left and right and you'll have 4 less Aux numbers (still 20 in total) but you'll need a 10 plug in servo channel RX with that, minimum.

So my flaps end up on Aux 1, and with standard wing types the Aux channels go to 15.

Confused yet, I am but that's my normal state. 🤯

[Elbee]

Hugh Wiedman,

When I grow up I want to be you.

Even my ol' Futaba 8J still confuses me.

Best, LB

[Hugh Wiedman]

Yes, exactly, that matches your explanation of the channels... but there's another one for the gyro control (theoretical channel), so as you wrote, you need at least 9 channels. Since 9-channel receivers are usually unavailable, Spektrum receivers always end up being a 10-channel model. How it can work with fewer channels, always including gyro functions, is beyond me.

All Spektrum gyro receivers actually have 20 channels. The 6/8/10 models have that many "plug in" channels, the rest are referred to as "ghost" channels. So things like gyro controls (such as in flight gain controls and FM) you can assign to a switch and it corresponds to Aux 7-20 (on the 6 channel RX). Only servo plug ins need to go in the 6/8/10 channels. Mixes can also be in ghost channels. 😱

If you have a 20 channel TX, all ghost channels show up all the way to Aux20. A 10 channel TX will only show up to Aux 10. That's why people buy 14 and 20 channel TX's. No 20 channel plug in servo RX's. With a 6 channel RX, you can always get a channel expander or 2 and take advantage of those 20 channels, as long as your TX has 20 channels.

These ghost channels also allow you to assign more than one thing to a single switch. For example, my flaps are assigned to channel 6, Aux 6 and assigned to switch D, a 3 position switch. I also assign ghost channel Aux 20 (or any other unused Aux channel) to the 3 position Switch D and assign Aux 20 as my 3 Flight Modes in the gyro setup. That way, when I deploy flaps, the gains increase with flap deflection that I set gains for flaps up fly around, increasing for take off flaps, and increasing for landing flaps. Gains change automatically as my flaps change. 😁

I do similar things like with the Aux channels assigning TV nozzles to a switch for on/off and tailerons to off/50%/75-100% with a 3 position switch, though the servos are plugged into specific channels.