Official Freewing Vulcan 70mm EDF Jet Thread

[kallend]

A friend with a Vulcan wanted a nozzle to finish off it's rear end but wanted something F-15 style, so I came up with one and added it to my nozzle collection. It's #10 in the list.

https://www.thingiverse.com/thing:4949975

[Fast N Light]

Lost my 1st Vulcan in San Diego Mission Bay due to Tx/Rx signal failure. Such a fun model, had to get another. Upgraded the battery tray on this one to place the satellite Rx aft of the battery.

Printed tray adds height for electronics below, length to support aft placement of battery and most importantly better battery strap placement. A little extra width makes a huge difference when securing the battery.

The print file is available here.



Also did a remix nozzle which I find to be whisper quite and to look awesome printed in Burnt Titanium ASA filament.

[Quadflyer68]

I don’t recall ever mentioning ‘that company’, since I don’t do business with them or care about them.

I hope I didn’t say anything inappropriate in my posts.

[freakbrother]

Could it be a possibility that when the name "TXXU" or variation on that theme, appeared in anyone's post, that post got UNAPPROVED immediately and after a short time if that post was not looked at and approved, the post and the "member" got deleted? Something like that happened to me when all this was going on. I mentioned the name in a post and that post was unapproved, BUT in a very short time (within a couple hrs), someone recognized me and approved it even though the name of the offending company remained in my post.
Did any of the members who lost all their posts and post count or got "banned" and had to be re-instated or re-registered, have the name of the company in a post during those times?

IIRC I put the offending name but with "*" instead of the "e" in a post in a thread about the moderators' response to the spamming. Almost immediately I was "banned permanently". After resurrection my posts were reset to zero. No big loss.

[xviper]

Could it be a possibility that when the name "TXXU" or variation on that theme, appeared in anyone's post, that post got UNAPPROVED immediately and after a short time if that post was not looked at and approved, the post and the "member" got deleted? Something like that happened to me when all this was going on. I mentioned the name in a post and that post was unapproved, BUT in a very short time (within a couple hrs), someone recognized me and approved it even though the name of the offending company remained in my post.
Did any of the members who lost all their posts and post count or got "banned" and had to be re-instated or re-registered, have the name of the company in a post during those times?

[Elbee]

Innocent victims of the spam attack, I guess. Every one of my old posts has disappeared (not that it's any great loss).

FB,

There might be something else going on here.

I recognize each of the authors listed above in this thread and would never delete posts by any of those members.

When Aros added a filter to identify the TEEmOO spammers deleting or dismissing pages of posts was the SOP.

ANY post or page of posts I deleted was also reviewed by me at the time before pressing the delete key.

If Dismissing a post or series of posts also deletes that post(s) then I am not aware of that protocol.

I cannot apologize for something I did not do, but I will take responsibility for "Dismissing" posts over the past 2 days rather than deleting those same posts.

This was a total cluster from the beginning and it is my hope that 'the powers that be' can add a layer of Identification to the member sign up that helps eliminate further spamming on any level.

Respectfully, Steve (LB)

[freakbrother]

Where are all the recent posts ?

Innocent victims of the spam attack, I guess. Every one of my old posts has disappeared (not that it's any great loss).

[Quadflyer68]

Where are all the recent posts ?

[Quadflyer68]

Very pleased with this model. My second one.

Agree the springs are on the stiff side for my flying off a dirt strip. Using Dubros low bounce tires to soften the total spring rate and add some damping. Pleased with the result.

Mine is very quiet. Woosh on full power. Using a modified J Kallend nozzle which matches the foam ID and OD to a gnats a**. Nozzle file posted here.

Excellent nozzle!

I agree - love the Vulcan. It's actually more forgiving than the Avanti when I do stupid things, lol :)

I might try some weaker springs from another jet. Stock gear are practically solid with no give.

[Quadflyer68]

Where do you see this? I've read the Vulcan manual and the ESC manual. I can't see anything about needing full rates for ESC arming. Usually, when full rates are needed, this is in reference to Spektrum's gyro settings where it needs full rates to select a switch for activating "Safe". Throttle calibration and reverse should not be affected by "rates" for the control surfaces UNLESS you've got some kind of cross-over in "channel assign" with your throttle channel or ch. 9. Sometimes, in order for throttle arming, throttle trim needs to be as low as possible. That's the only time I've a relationship between trim settings and ESC arming.

I'm experiencing it in real life :) Didn't read it anywhere, just what I have to do to arm the ESC. I agree, it's strange. None of my other jets do this, and I copy the model in the Tx to make new ones - this one was copied from the Avanti, which works fine.

I'm using LemonRx receivers in all my jets too. 7Ch Rxs in 64mm Viper and L-39. 10Ch Rxs in 80mm Avanti and 70mm Vulcan.

Same Tx, same Rx, different ESC is where my mind is going (?) Unless the Rx is flakey ...

[Fast N Light]

Sweet little jet, for sure. Landing gear springs seem a bit 'strong' given the weight of the plane (compared to the Avanti at least). I wish it sounded a little less like a hair-dryer though ;)

Very pleased with this model. My second one.

Agree the springs are on the stiff side for my flying off a dirt strip. Using Dubros low bounce tires to soften the total spring rate and add some damping. Pleased with the result.

Mine is very quiet. Woosh on full power. Using a modified J Kallend nozzle which matches the foam ID and OD to a gnats a**. Nozzle file posted here.

[Evan D]

Why have rates on throttle anyway?

[xviper]

Question regarding the ESC. Why would I have to have high/full rates (100%) selected in order for the ESC to arm? I calibrated the throttle (it needs high rates to calibrate too), and hooked the reverse lead to CH9 on the LemonRx. In the monitor screen on the NX10 I can see CH9 always puts out -100/+100 regardless of the rates selected. Same for the throttle channel.

If I unplug the reverse lead from the Rx, then the ESC will arm at any rate setting (I have 60-80-100). Seems odd ... unless it's stupidly simple and I'm missing it.

Where do you see this? I've read the Vulcan manual and the ESC manual. I can't see anything about needing full rates for ESC arming. Usually, when full rates are needed, this is in reference to Spektrum's gyro settings where it needs full rates to select a switch for activating "Safe". Throttle calibration and reverse should not be affected by "rates" for the control surfaces UNLESS you've got some kind of cross-over in "channel assign" with your throttle channel or ch. 9. Sometimes, in order for throttle arming, throttle trim needs to be as low as possible. That's the only time I've a relationship between trim settings and ESC arming.

[Quadflyer68]

Sweet little jet, for sure. Landing gear springs seem a bit 'strong' given the weight of the plane (compared to the Avanti at least). I wish it sounded a little less like a hair-dryer though ;)

Question regarding the ESC. Why would I have to have high/full rates (100%) selected in order for the ESC to arm? I calibrated the throttle (it needs high rates to calibrate too), and hooked the reverse lead to CH9 on the LemonRx. In the monitor screen on the NX10 I can see CH9 always puts out -100/+100 regardless of the rates selected. Same for the throttle channel.

I have throttle cut on a switch that buries the throttle to -150. Doesn't matter if this is enabled or not.

If I unplug the reverse lead from the Rx, then the ESC will arm at any rate setting (I have 60-80-100). Seems odd ... unless it's stupidly simple and I'm missing it.

[CF-105]

Finally got some Sky under my Vulcan for the first time in a long while (at least a year?). Previous was using some 6S 5000s that, quite frankly, were too worn out for EDF use. 3:30 on the timer with small margin for a missed approach, and they were pretty warm. Now flying on SMC HV2 6S 4900s. What a difference! 5 minutes with a couple of full throttle runs, barely warm and still at about 54% once back on the ground.

[xviper]

Purely in jest, no disrespect intended

No harm, no foul, not disrespected. We good.



Just as a further clarification for "runamuk0", Hi Perf. Vulcans did not have reversing ESCs. I sort of recall that mine did not have it. This is also the answer given on the Vulcan webpage "Q&A" section where MotionRC replied to "Adam" when he asked this question. This was from Aug./2025.

Motion RC 08/05/2025
Hello Adam, This model does not have reverse thrust at the moment; however, the ESC could be replaced with a reverse thrust-capable unit.

https://www.motionrc.com/products/freewing-vulcan-high-performance-70mm-edf-sport-jet-pnp-fj21911p

[Alphonso]

Purely in jest, no disrespect intended

[xviper]

mines 2 years old and came with an 80A reversing esc. I've never used it but it's there, 4th yellow wire with a plug on the end yes?

I've contradicted you twice in different threads now, not my intention honestly, I really am quite a pleasant person.

Yes, it's the 4th yellow wire with plug is the reverse. I sold mine a few months ago, so can't check but I can't remember if it had reverse or not.
Here's the replacement ESC for the 6s Vulcan:

https://www.motionrc.com/products/freewing-80-amp-brushless-esc-049d002002

As you can see, there is no 4th yellow wire.

Here is the replacement ESC for the 4s Vulcan:

https://www.motionrc.com/products/freewing-60-amp-brushless-esc-for-70mm-f-16-v2-049d002001

You can clearly see the 4th wire.

In any case, the key point is that 4th yellow wire. If it has it, then it's got reverse.

PS. Contradicting me is not a big deal, so not really all that noteworthy. I'm not always right and don't get worked up when someone points it out.

[Alphonso]

No. How you can tell is if the throttle lead has a 4th wire ending in a servo plug of its own. If that's the case, you plug that into any empty RX port and assign a switch to that channel. You can also buy an ESC that has reversing capabilities or you can buy a Spektrum smart ESC and use a Spektrum smart RX and "forward program" reverse. (Spektrum does not have a wired reverse lead.)

mines 2 years old and came with an 80A reversing esc. I've never used it but it's there, 4th yellow wire with a plug on the end yes?

I've contradicted you twice in different threads now, not my intention honestly, I really am quite a pleasant person.

[xviper]

Does the ESC support thrust reverse? If so, how do I set it up?

No. How you can tell is if the throttle lead has a 4th wire ending in a servo plug of its own. If that's the case, you plug that into any empty RX port and assign a switch to that channel. You can also buy an ESC that has reversing capabilities or you can buy a Spektrum smart ESC and use a Spektrum smart RX and "forward program" reverse. (Spektrum does not have a wired reverse lead.)