Thanks for the info.

I have 38 flights on mine, gear is holding up.
Have a spare set of pins standing by.

Fortunately have a nice smooth runway also.
I strive to have the mains take the load on landing.

Originally Posted by green_flyer

I don't know, it seems to me the new Pro fan produces the same thrust as the V2 with either the original 1850kv motor or with the new Pro 1900kv motor.
In the Su-35 thread I see people who posted Pro 1900 fan installed thrust numbers posted around 1800g to 1900g installed thrust and around 68A on low timing. My friend's Eflite Viper with the stock fan (1850) also produces 1900g thrust. This would translate to roughly 2200g thrust with fan on stand.
So this leads me to believe the new Pro fan produces almost identical thrust as the V2 fan, so its probably the same rotor with a fancy spinner.

The difference may be in some people using different (high) timing on the ESC?
That's why its useful to know the amps.

Original Eflite 70mm 1850kv 'V2' fan

https://www.youtube.com/watch?v=cosUPf7WEF0

Original Eflite 70mm V2 fan with new Pro 1900kv motor
(admittedly I took 10 seconds longer to reach full throttle, so if I went to full throttle quicker the voltage may have sagged less and maybe it could have registered 50g~100g more thrust?)

https://www.youtube.com/watch?v=1CgRcB-LEoc

It is good to know the difference between those Different FMS 70mm fans.
Thx.
..

Well, as far as thrust difference, I've been flying mine since they came out with the stock 1850 kv V1 EDF. Back this past April I upgraded to the FMS V2 Pro 1900kv EDF unit and upgraded the ESC as well…
…I noticed the increase in thrust and performance immediately. I could be in 60-degree nose up high alpha at a crawl, and then initiate a slow climb at nearly a 80-90 degree nose up. I could not do this with the stock 1850kv motor. Nothing else was changed…same batteries.
DB

Originally Posted by deadbug

Well, as far as thrust difference, I've been flying mine since they came out with the stock 1850 kv V1 EDF. Back this past April I upgraded to the FMS V2 Pro 1900kv EDF unit and upgraded the ESC as well…
…I noticed the increase in thrust and performance immediately. I could be in 60-degree nose up high alpha at a crawl, and then initiate a slow climb at nearly a 80-90 degree nose up. I could not do this with the stock 1850kv motor. Nothing else was changed…same batteries.
DB

Awesome, that is a big difference! Are you saying the thrust is greater than 1:1? Also, what size battery are you using?

I just received the 1900kv FMS pro EDF. On the weekend I will put it in the test jig and measure the thrust . I will also measure the stock EDF using the same battery and post the results here.

Also, have a Thrust vector unit on the way. Really looking forward to that!!!!

Originally Posted by Tronn

Awesome, that is a big difference! Are you saying the thrust is greater than 1:1? Also, what size battery are you using?

I just received the 1900kv FMS pro EDF. On the weekend I will put it in the test jig and measure the thrust . I will also measure the stock EDF using the same battery and post the results here.

Also, have a Thrust vector unit on the way. Really looking forward to that!!!!

This was with a Hobbystar 4200 lipo—see HERE. It is a very light battery at around 515 grams for the capacity.
It was just a bit better than 1:1 for a little bit, but I don't think it would sustain it as the burst amps start dropping, but it was significantly better than the stock 1850kv unit. Bystanders sure noticed, then some folks who had one of these wanted the upgrade also…darnit…lol.
DB

Originally Posted by deadbug

This was with a Hobbystar 4200 lipo—see HERE. It is a very light battery at around 515 grams for the capacity.
It was just a bit better than 1:1 for a little bit, but I don't think it would sustain it as the burst amps start dropping, but it was significantly better than the stock 1850kv unit. Bystanders sure noticed, then some folks who had one of these wanted the upgrade also…darnit…lol.
DB

That is a really light battery for 4200mah!

Originally Posted by deadbug

This was with a Hobbystar 4200 lipo—see HERE. It is a very light battery at around 515 grams for the capacity.
It was just a bit better than 1:1 for a little bit, but I don't think it would sustain it as the burst amps start dropping, but it was significantly better than the stock 1850kv unit. Bystanders sure noticed, then some folks who had one of these wanted the upgrade also…darnit…lol.
DB

That is nice. Very nice with hobbystar 4200 6s. 515gr .
What is the AUW of your jet?
Thanks .
.

Originally Posted by flylow2011

That is nice. Very nice with hobbystar 4200 6s. 515gr .
What is the AUW of your jet?
Thanks .
.

I've never computed the AUW, but I fly it as it came out of the box (BNF) with missle rails only and the Hobbystar 4200.

Originally Posted by CR5

I wasn't aware there was a V3 fan unit, I bought my F-18 marketed as a v2 with 1900Kv and the Avanti is labeled a V3 but I thought that was the model not the fan unit as I can't tell the difference between the two or the one I bought to throw in the F-16, they all have 1900Kv motor.

My understanding is

The early FMS 70mm fan has 2 versions : V1 and V2 . Which have the same motor 1850 kv ,
only different is The cone :-)
The Eflite F16, FMS F16, FMS F18 V1 have FMS 70mm 1850kv V2 fan.

Then the latest fan called FMS 70mm Pro,
That has new rotor, new 1900kv motor.

And the FMS F18 V2, Yak 130 V2 have the
FMS 70mm Pro 1900kv and new ESC.
.
.

Eflite F16 Thunderbirds 118 MPH on 8s (3 min 43 sec)

Nevada, can't see your t-bird in the air. I used to fly it off grass, but man I was always messing with landing gear. I now fly off a paved runway and have no issues after many flights with my newest T-bird. Love this airplane.

Originally Posted by naveda_08

https://youtu.be/bA0SDYdo90Q

Nice!

Afterburner from RC Castle...

Alan's Eflite 70mm F-16 Thunderbird Afterburner Mod (1 min 38 sec)

Originally Posted by J3 guy

Thanks for the info.

I have 38 flights on mine, gear is holding up.
Have a spare set of pins standing by.

Fortunately have a nice smooth runway also.
I strive to have the mains take the load on landing.

For the Main wheels of the F16, replace
Them with Dave Brown low bounce wheels and enjoy.
I think the F16 main wheel is 1.75 inches .

.
.

Originally Posted by flylow2011

For the Main wheels of the F16, replace
Them with Dave Brown low bounce wheels and enjoy.
I think the F16 main wheel is 1.75 inches .

.
.

I can't get those in Australia. Do you think the Dubro 1.75" low bounce wheels would be as good?