Official Freewing JAS 39 Gripen 80mm EDF Jet

[Airguardian]

Thanks, bookmarked! ^^

[kallend]

I resized the Meteor missiles to 1:9 scale for the Gripen.

https://www.thingiverse.com/thing:5558852

[Airguardian]

Thanks it's appreciated!
Someday I'll get a friend to print these for mine :)

[BenOzzy94]

Waiting for decent weather so messing around with my new ordnance instead.

[Airguardian]

That's so sick, love it! :DDD

[WarbirdFan66]

Waiting for decent weather so messing around with my new ordnance instead....

Really nice job on the armament BenOzzy, did you use the pylons that are on thingiverse and did you modify those? Im asking because i found the originals not to be fitting that well to the wing of the Gripen, or did you design your own maybe?...yours look really nice, specially with all the missles and tanks on it.

[BenOzzy94]

Really nice job on the armament BenOzzy, did you use the pylons that are on thingiverse and did you modify those? Im asking because i found the originals not to be fitting that well to the wing of the Gripen, or did you design your own maybe?...yours look really nice, specially with all the missles and tanks on it.

I used the ones on thingiverse. I just slightly adjusted them with heat after they were printed to fit the bulges in the wings

[HockeyMac!]

Ben do you want to let me know the resizing you did for the drop tanks? Those are my design and I can make adjustments to them :)

[BenOzzy94]

Ben do you want to let me know the resizing you did for the drop tanks? Those are my design and I can make adjustments to them :)

Will do when I get a chance

[kallend]

Really nice job on the armament BenOzzy, did you use the pylons that are on thingiverse and did you modify those? Im asking because i found the originals not to be fitting that well to the wing of the Gripen, or did you design your own maybe?...yours look really nice, specially with all the missles and tanks on it.

I think he said he used my pylons from Thingiverse. They fit my Gripen perfectly (as you might expect). What problem did you have with them, exactly?

If people let me know of issues I can generally fix them pretty quickly.

[JetFun]

The Gripen is pretty wobbly with the slightest wind over the roll / aileron axis. Where do you have your CG or do you just add a gyro? First flew the F22 and afterwards the Gripen. Same conditions the F22 stable, the Gripen with lots of roll.

[BenOzzy94]

Sorry to change the subject but had a mishap today and need to get parts. Does anyone know which steering arm is needed for the gripen? I know they are listed A-F but can't see which one is needed. Alpha if you could give some insight it would be greatly appreciated.

[TangoVector]

Sorry to change the subject but had a mishap today and need to get parts. Does anyone know which steering arm is needed for the gripen? I know they are listed A-F but can't see which one is needed.

A quick search shows "Type A" as the correct one:

-------
Freewing Landing Gear Steering Arm Type A - Metal - N512

These are upgrade parts for the following Freewing aircraft:

• Dual 64mm EDF Jets (A-10)
• 70mm EDF Jets
• 80mm EDF Jets

--------
None of the other types show JAS39 as a special version.

[xviper]

The Gripen is pretty wobbly with the slightest wind over the roll / aileron axis. Where do you have your CG or do you just add a gyro? First flew the F22 and afterwards the Gripen. Same conditions the F22 stable, the Gripen with lots of roll.

Throw a cheap HobbyEagle gyro in it.

[BenOzzy94]

A quick search shows "Type A" as the correct one:

-------
Freewing Landing Gear Steering Arm Type A - Metal - N512

These are upgrade parts for the following Freewing aircraft:

• Dual 64mm EDF Jets (A-10)
• 70mm EDF Jets
• 80mm EDF Jets

--------
None of the other types show JAS39 as a special version.

Thanks buddy. I was looking specifically for it to say "Jas 39 Gripen" that's where I was going wrong

[JetFun]

Never used a gyro...

Looking at the Hobbyeagle gyros. Which is the programming card for the Eagle A3 Super 4? Seems there is none available. Can only find the Super 3 version programming card but no separate super 3 gyro.

Not too keen to use the PC to setup.

Basically I might as well get a second gyro for another aeroplane without a second card so I am looking at options.

Input appreciated...

[xviper]

Never used a gyro...

Looking at the Hobbyeagle gyros. Which is the programming card for the Eagle A3 Super 4? Seems there is none available. Can only find the Super 3 version programming card but no separate super 3 gyro.

Not too keen to use the PC to setup.

Basically I might as well get a second gyro for another aeroplane without a second card so I am looking at options.

Input appreciated...

There is no need to get the "fancy" one that needs a programming card. The cheap A3 EVO is more than adequate to solidify the Gripen. It has both 3-axis and 6-axis gyros and can be programmed using the "blink" codes (via the button). The downloadable instructions are easy to follow. 3-axis will give you the stability you need for what you want to do for this plane. The 6-axis will give you the "recovery" or "panic" mode if you so desire to have it.

https://www.rc-castle.com/index.php?route=product/product&manufacturer_id=87&product_id=9427

If you wish to buy one from MotionRC, they only have (at the moment) the A3 Lite. This one will give you the 3-axis gyro and will tame the "wobblies" on the Gripen. Programmed like the EVO via the onboard button and blinky light.

https://www.motionrc.com/products/eagle-a3-lite-3-axis-airplane-gyro-hea3lte

[JetFun]

xviper Ok thanks that's helpful.
The lite version only uses one aileron. So it seems like that is sufficient?

[xviper]

xviper Ok thanks that's helpful.
The lite version only uses one aileron. So it seems like that is sufficient?

It can be configured as a "delta wing" (elevon), in which case one elevon plugs into AIL and one plugs into ELE. The TX remains as "normal" wing and the gyro does the mixing. It will give you "gyro ON" and "gyro OFF". Don't use "LOCK" mode for this plane. If you don't hook up the "mode" lead, the gyro will simply be ON all the time. You can even have "master gain" control via the rotary knob on the TX. Turning the master gain to zero is the same as turning the gyro OFF. This is great for initial testing of how much gain you need for any given plane. Once you figure out the ideal gain, mark it on the underside of the battery hatch and always set it at that for that plane. OR, you can determine exactly how much gain is really needed and set the gain pots accordingly and disconnect the master gain lead and never worry about it again.

PS. If you choose to go this route, a tutorial can be given at the time.

[kallend]

xviper Ok thanks that's helpful.
The lite version only uses one aileron. So it seems like that is sufficient?

Negative. it has a delta wing mode for elevons.