Official Freewing JAS 39 Gripen 80mm EDF Jet

[Sam78EDMO]

I have all this info in the RCG thread.

The TV unit weighs 164g. The stock back part weighs 74g. Extensions are 17g.

The TV unit robs about 10% of the thrust you have with a non TV'ed Gripen.

In my opinion if you want more than 1:1 you need to go 8S.

That thrust reduction kills it otherwise it could work. A rough calculation.

2350g (pnp without lipo according to motion)
- 354g EDF (according to rccastle)
- 80g PNP ESC (rough estimation)
- 50g removing some scale parts like antennas and pilot, (rough estimation)

That would be 1866g

+ 90g TV nozzle
+ 320g FMS 80mm EDF
+ 92g Flyfun 120A ESC
+ 833g light SLS 6s/7000ma/h lipo
+ 50g receiver/telemetry/gyro etc.

That would add up to 3251g with the FMS having 3550g of thrust - 10% = 3195 of thrust
Close call maybe there is a little bit more to remove or to replace with lighter parts.

[Evan D]

I have all this info in the RCG thread.

The TV unit weighs 164g. The stock back part weighs 74g. Extensions are 17g.

The TV unit robs about 10% of the thrust you have with a non TV'ed Gripen.

In my opinion if you want more than 1:1 you need to go 8S.

[Sam78EDMO]

Hi, I'm thinking of getting the Gripen as ARF version. Ideally I want an EDF to get a thrust to weight ratio above 1. With the EDFs I checked it seems to be a very close call to get there. My question, how heavy is the ARF Version? Motionrc states 2350g for both Version PNP and ARF. How much extra weight would the thrust vectoring set add?

Thank You and best regards

[Evan D]

PNP...

[Crippe1991]

Hi I have a question about the TV for the Gripen. To install it do I need to buy servo extensions or is the TV a pnp upgrade?

[Airguardian]

Always thought FW should have made this a 90mm bird from the get go :)

Great job!

New Heavy Metal Gripen video just posted!

[Gary S.]

[Gary S.]

https://youtu.be/0ZvF6nUU6LM

[Gary S.]

Very impressive, Both the mods and your results.

Evan, That is a tremendous compliment. As you are one of my great modding heroes/ inspirations. TY

[Evan D]

Very impressive, Both the mods and your results.

[Gary S.]

My Gripen has had a great life and was already highly modded. So I was switching all my TX RX over to FrSky X20s and....well I decided to go from 80mm 8s to 10s 90mm. (lots more modding) Just had my first 6 test flights and decided to do as speed check because its moving really fast....

[kallend]

Let’s Get HIGH ALPHA and LOW
With the 80mm Gripen from Motion RC and Freewing.

TURN IT UP 🔊

Very nice, but it needs an afterburner.

[xviper]

Let’s Get HIGH ALPHA and LOW
With the 80mm Gripen from Motion RC and Freewing.

TURN IT UP 🔊

https://youtu.be/Q3TTII8MxrQ

VERY artistic and well done. The snow in the background is a nice touch.

[JLambCWU]

Let’s Get HIGH ALPHA and LOW
With the 80mm Gripen from Motion RC and Freewing.

TURN IT UP 🔊

https://youtu.be/Q3TTII8MxrQ

[Airguardian]

Congrats Naveda!
Welcome to the Gripen guru Club! :D

And Merry Xmas everyone!
Here's my special Christmas-edition video of the mighty flying-christmas-tree we all love ^^

[Naveda08]

Maiden flight

[Airguardian]

[Airguardian]

Glad to help!

[paulrkytek]

So much helpful information in that post. Thank you very much!

I installed the fms 1900kv fans in my SU35 over a year ago, sound good, perform well. I looked at the gripen but decided against it as I already had the SU35. I bought my SU35 by buying the parts and adding my own servos, fans, escs etc, worked out about the same as buying plug and play but with better components so if you are happy to `modify` to achieve the best results then SU35 is a good option.

[Thoemse]

So much helpful information in that post. Thank you very much!