Foamboard SAAB JAS-39 Gripen EDF (images, plans, build)

[blitzr3n3l]

Alright guys thrust to weight is excellent almost done with the build

 

[Bayboos]

Wow, you are quick! Good luck with the maiden!

 

[Peeradol]

Update almost finish and waiting for battery charger

 

[blitzr3n3l]

View attachment 131961
Update almost finish and waiting for battery charger

That's cleannnn

 

[Peeradol]

That's cleannnn

How's your plane?

 

[blitzr3n3l]

How's your plane?

Still on the bench

 

[Widkin]

Update almost finish and waiting for battery charger

Hi, since you are waiting for a battery charger, I just want to ask: Is this your first plane?

En EDF is not a good first plane, and especially not this one, you need a bit of flying experience under the belt. Just want to say that, I don't want you to crash and undo all of that great build work.

 

[Peeradol]

Hi, since you are waiting for a battery charger, I just want to ask: Is this your first plane?

En EDF is not a good first plane, and especially not this one, you need a bit of flying experience under the belt. Just want to say that, I don't want you to crash and undo all of that great build work.

It's not my first plane. but it is my first edf plane.

This is what i fly before with futaba t6j radio control and another plane p47 my first plane.

 

[Peeradol]

Today i already fly it and the result is this plane can fly but i flew it into the tree. Here is some picture of it right now.

 

[Peeradol]

This is what i gonna fix. I decided to cut broken part and replace the new one.

 

[Widkin]

Ouch! But seems like relatively easy fixes. God luck with the re-maiden

 

[Bayboos]

Welcome to the "not so shiny anymore" club Good luck and have fun!

 

[Peeradol]

Already fix for tail.

 

[Peeradol]

Wing

 

[Peeradol]

I broke my fuselage. That's make me really mad right now haha

 

[Peeradol]

Canard

 

[Peeradol]

Finish!!! Not beautiful anymore

 

[Bayboos]

My Gripen flew again today. No photos or video this time, but believe me: it was a blast! I added additional carbon spar parallel to the leading edge, approx. 1 inch away from it. That was enough to completely get rid of the "suicidal dive" tendency. Now the plane flies straight(ish) and true(ish, as far as the plane after three serious crashes can) at any speed, including full throttle dives on 4s. One downside is that the ESC becomes really hot after such flight and I need to wait at least 20 minutes before the next one... But it's nice to finally have just this kind of problems

Now I need to finish up the airframe and find some reliable camera operator...

 

[Peeradol]

My Gripen flew again today. No photos or video this time, but believe me: it was a blast! I added additional carbon spar parallel to the leading edge, approx. 1 inch away from it. That was enough to completely get rid of the "suicidal dive" tendency. Now the plane flies straight(ish) and true(ish, as far as the plane after three serious crashes can) at any speed, including full throttle dives on 4s. One downside is that the ESC becomes really hot after such flight and I need to wait at least 20 minutes before the next one... But it's nice to finally have just this kind of problems

Now I need to finish up the airframe and find some reliable camera operator...

Im gonna fly it today too haha

 

[Peeradol]

Update re-maiden flight is success!!!
I will update video for your guy later.