Official Freewing Vulcan 70mm EDF Jet Thread

[GBLynden]

This is the Maiden Flight Review!

[Skosh25]

First video of my repainted Vulcan with the blue lightburner. Such a fun little jet!

[xviper]

I've flown my Vulcan a few times now and there were no surprises. It flew well, never a problem and it even takes off well from grass. At 3500 feet altitude, this jet is not as fast as I had hoped it would be but since it so trouble free and flies well enough, I'm happy with it. Not needing to be disassembled, it can be easily thrown in the car and doesn't take up a lot of storage space. From my previous post, I did get the Stinger 90 and have flown it a few times as well. By far, it is still one of my most satisfying jets I have. It's up there amongst my top few faves.

[GBLynden]

This is my Unboxing for my new Vulcan!

[kallend]

Someone wrote to me that his Vulcan had a slightly different size rear end than the one I created the nozzles for, so I designed a slightly bigger one to fit his plane. It's #5b in the set on Thingiverse, in case anyone else has the same problem.

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

(I don't have a Vulcan of my own so I made these according to dimensions people sent me).

At long last I got access to a Vulcan and measured the outlet for myself. The one I measured was 1mm larger in both OD and ID than the values that I had been sent and which I used when designing the various nozzles.

I have started modifying the files on Thingiverse, and the larger nozzles have a "b" suffix in the filename. As I get time I will get "b" versions for all the nozzles.

[toomarc]

Has anyone seen this quick connect for the wings mentioned on motionRC page?


Features:

• Removable wings with quick disconnect wiring plug

Neither of mine had quick wiring disconnects.

Also has anyone else had issues with the Ailerons breaking off with less then 10 flights?

[Airguardian]

[Airguardian]

Now THAT'S CLEVER!

-GG

Glad you liked it!


So, flew a bit more today, CG further aft, more expo on the elevator, thing flies better now but still feels hella nose heavy.
What are you guys flying this jet at in terms of CG?

[xviper]

Just got this Vulcan myself. It's all built and set-up. Just hanging from the ceiling waiting for spring. I had the Avanti S but sold it a couple seasons ago to make room for something else at that time. I missed it but remembering what my Stinger 90 was like, I decided to get the Stinger instead. I just preferred the looks and the way the Stinger flies over the Avanti. Both were excellent airplanes. I'm hoping the Vulcan will be just as satisfying.

[GliderGuy]

Now THAT'S CLEVER!

-GG

[Airguardian]

[Chrisrhays]

issue solved. So I can’t delete my post, it’s all setup and came in a 1528g without battery and 2162g with battery

[Evan D]

They fly very similar. I would say they are both as smooth but the Vulcan is faster. The Avanti has gear doors and lights and some like one scheme over the other. Both are really good flyers.

If you already have the batteries for one over the other that may make a difference too.

Fancy this Vulcan, just need a fun EDF. This Vulcan looks to fit the bill. Just wonder how it compares with 80mm Avanti. The 70mm Vulcan is cheaper and I just want a fun EDF to fly over the winter but is it worth paying the extra and get the Avanti????

[Chrisrhays]

Does anyone have a picture on how all the wires are hooked up with the receiver and the blue box? I have power everywhere except the wheels. Only the nose gear operates. I am using a graupner radio that I don’t have a lot of experience with. Thanks!

[Tigerman]

Fancy this Vulcan, just need a fun EDF. This Vulcan looks to fit the bill. Just wonder how it compares with 80mm Avanti. The 70mm Vulcan is cheaper and I just want a fun EDF to fly over the winter but is it worth paying the extra and get the Avanti????

[paulrkytek]

Well given its stock speed at sea level is 120 mph and at >5000 ft (with the attachment) I got a listed top speed of 125 mph plus I got an extra 30 seconds of flight time going pretty hard than on James' video. Other than speed and time, I don't have other hard data, but from what I've seen I'd call it a great performance increase! Hope this helps :)

Am I missing something here, just that 4 percent increase does not seem to be a great performance increase, 25% does. Bearing in mind the accuracy of speed recorders and the fact that the air is less dense at 5000 feet above sea level I would have expected an increase in speed of the stock system anyway by around 5% or more . Perhaps you might give this some further thought. The only way to be certain would have been to test the stock setup v the altered setup at the same field and maybe do at least 5 speed runs on each, taking the average and then looking at the results.

[kallend]

Well given its stock speed at sea level is 120 mph and at >5000 ft (with the attachment) I got a listed top speed of 125 mph plus I got an extra 30 seconds of flight time going pretty hard than on James' video. Other than speed and time, I don't have other hard data, but from what I've seen I'd call it a great performance increase! Hope this helps :)

My (full size) Mooney goes faster at 5,000ft than at sea level. It's atmospheric physics and can't be attributed to any modification.

IF you had a before and after thrust measurement under the exact same conditions, then I'd be inclined to believe you.

[DaFlyingSnek]

How do you know it gives "Great performance increase" (according to your thingiverse write up) if you hadn't maidened it? Did you measure any thrust increase? Change in current?

Well given its stock speed at sea level is 120 mph and at >5000 ft (with the attachment) I got a listed top speed of 125 mph plus I got an extra 30 seconds of flight time going pretty hard than on James' video. Other than speed and time, I don't have other hard data, but from what I've seen I'd call it a great performance increase! Hope this helps :)

[xviper]

Does anyone know if I can use a AR631 reciver in a ultimate 3D plane?

This thread is about the Vulcan EDF jet. Your question is better asked in another appropriate thread or you can start a new one in the appropriate forum.

[kallend]

Hello all!

I had received a Vulcan for my b-day (today) from my incredible family, and being at a mile up in altitude I wanted to improve the performance but still be able to transfer it (college student) in the box (no external parts), so I spent far too long making an inlet duct splitter! Essentially it goes over the stock splitter (seen when you take the wing off) and it should improve airflow to the EDF. I put one in my 90mm F-22 and there was a very noticeable performance increase so I'm hoping this one goes well!

. . . .
-Chris

(also I still need to maiden it. It's my first sport jet, and I've been flying scale for 7 years, but I love it so much already)

How do you know it gives "Great performance increase" (according to your thingiverse write up) if you hadn't maidened it? Did you measure any thrust increase? Change in current?