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Official Freewing JAS 39 Gripen 80mm EDF Jet
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Originally posted by janmb View Post
This!
A little bit of me dies whenever I read someone talking about whether or not a model NEEDS a gyro.
Your car doesn't NEED power steering or cruise control either, but it is damn nice to have anyway. It is virtually never about need.
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Originally posted by xviper View PostThis is nothing new. I had hoped this wasn't the case for the Gripen but I guess I'll have to deal with it. My FMS F7F was so bad, I had to do an inverted pass just to get the nose gear door to close. I've changed retract motors and still the same. Now, I just don't bother and let the door/wheel hang done a bit during flight. The FMS 1700mm Corsair is the same. They need to make stronger retracts.
Even my F-18 seems to have caught this bug on the nose gear door. I even swapped the retract with a new one to no effect.
Fortunately, except for the Mirage, pulling vertical seems to do the trick.
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You should be good then.
That said, if you have not installed the EDF yet, try to move it aft, or you will struggle to get decent CGs.
I moved mine as aft as I could without hacking foam open and despite the EDF and ESC being heavier, and me still having 130g of ballast in the tail it's really not enough.
I'm considering hacking the foam to install the EDF much further aft to really get rid of the useless ballast while still being able to use bigger batts.
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I use a 9mm cutting blade knife because the blade bends easily. It's the one that you can break off small sections from, but I don't do that. I extend the knife all the way and by pushing it, it bends and it is very easy to shave the foam. It is like using the cheap version of a wood carving knife. Then I use a Dremel for some of the precission-work, but the sharp knife is approx 95%. I can take a picture next week, am away at work at the moment.
Oh, and I cut the tail in half for easy access, it was easy with the sharp knife and it will not show once glued back.
2 Photos
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Originally posted by TangoVector View Post
YES, hack the foam!
My Gripen tail is getting there.
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Buttoned up the airbrakes this morning and I think this Gripen is done! With luck it'll be an early spring and the re-maiden can happen sooner than later. A short video:
Freewing Saab JAS-39 Gripen in fictional Canadian demo bird scheme. Modifications include functional LE flaps, airbrakes, cockpit and pilot.
Tom
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That cockpit and airbrakes look total badass Pogo, love it!
I remaidened my Gripen today with the Jetfan.
Cut my flights short to 2-2:30min for the time being to avoid more nasty surprises but she's back in the air. Repairs went well. :)
It was turbulent though, and the plane flew like crap, but that's nothing new with this jet, lol.
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Finally got the turbine converted gripen going. 6 flights yesterday, 7 more today.
Nothing huge yet, just trying to get it dialed in (which is giving me more headaches than any other delta I have owned), but slowly getting there.
Flying high alpha with a 3-4 second throttle response is a whole new world of angst lol (hence why you don't see a whole lot of it)
Freewing A-10 turbine conversion: http://fb.me/FreewingA10TurbineConversion
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Originally posted by Airguardian View PostThat cockpit and airbrakes look total badass Pogo, love it!
I remaidened my Gripen today with the Jetfan.
Cut my flights short to 2-2:30min for the time being to avoid more nasty surprises but she's back in the air. Repairs went well. :)
It was turbulent though, and the plane flew like crap, but that's nothing new with this jet, lol.
Tom
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