Official Freewing 80mm A-4E/F Skyhawk Thread

[seaviper]

I dont know about zero chance. I lost a tail hook early on. Found it on the runway, pointed down range, securely hooked to a piece of grass growing along the ground like a cable.

anyway, as for the tanks, they need to be weighted so that the cg is on that eyelet for the release. Otherwise they will sit cocked in the unit and drag on the release pin.

once weighted, they drop so smoothly.

[fhhuber]

Functioning arrestor cable has been done, but a scale hook has essentially 0 chance of hooking it.

[dahawk]

Topshot

Do you also have a functioning arresting cable? That would be the bees knees!

[EA-6B Geek]

I know they had a few single seaters in TW-1 so it shouldn't look out of place. I really do like the looks of the two seater though. Nice job.

Oh yeah! And with the avionics hump to boot. Today was a missed opportunity to maiden mine. Unexpected good weather. May try tomorrow.

[seaviper]

I know they had a few single seaters in TW-1 so it shouldn't look out of place. I really do like the looks of the two seater though. Nice job.

[EA-6B Geek]

Hey Seaviper, I've beat this drum before, but can't wait to see your A-4 in a VT-7 scheme! Hope this photo helps motivate you!
Scott

[seaviper]

The payload release units are just screwed in and therefore easily replaceable. They seem to be pretty nice. And they mount very close to the CG. The area where they mount is lined with 1/16 balsa (not shown). The screw mounts are 1/8" ply. I hogged out a small channel under the pcb in order to get the cable outside. A simple y connects the two units to the receiver.
The payload release is programmable via a small pushbutton and led setup. You can daisy-chain other units and program the order of release.
So far the only testing I've been able to do has been captive carry on the driveway.
I'm gonna test fly this mod as soon as the rain quits here. If successful, then the little scoot is going in for a complete tear down, rebuild, and re-paint. She has acquired a bit of battle damage over the past six months.
A little putty, some paint, and a fresh set of TW-1 decals are in order to celebrate 100 missions which will be coming up soon.

[AceMigKiller]

Noyce!

[RCjetdude]

My scoot can jettison ord now

Now that's cool.

[seaviper]

My scoot can jettison ord now

[Topshot19]

I maidened my a4 today. It was kind of a scary flight, I’m not sure if I got the cg right. She was very rocky and needed a lot of up elevator. I did the tail hook mod, could that have added much weight? I put the battery all the way forward. I got her down in one piece. She almost stalled on the landing. It was a windy day also. Does she not like the wind ? On the second flight I used the old stile shorter battery. Think I got the cg right. But she was still very wobbely. And I still fill like she wasn’t flying quite right. How is this plane normally. Defiantly nothing like my avanti !

[RCjetdude]

Silicone will work. Can also use Foam Tac. EPO is pretty resistant to many of the solvents typically used in adhesives I believe.

[TSchwyn]

Just building my Freewing A4 from Motion RC left flap servo arm was way off. (Not aligned with other servo) Had to break glue loose and pull servo out to align arm. What glue/adhesive does Freewing use to glue in servos? Looks like white silicon, but I know some glues can attack epo foam. Recommendations? Thanks for the assistance!! Tom

[RCjetdude]

Perfect Many Thanks! Well done. This what I am going for! will post more when complete.

It will look sweet when done.

[e4dragongunner]

Perfect Many Thanks! Well done. This what I am going for! will post more when complete.

[RCjetdude]

Wow Spectacular! I am currently doing the the Diamond Back livery. I am very interested in that centerline tank. Did you modify the one of the large wing tanks that comes with the Freewing A4?

Now I want 3D printer! :-)

Yes. I cut the back off of one and the nose of the other and glued them together. It is close enough for what I am trying to do.

[e4dragongunner]

And just as a side note I replaced my elevator servo in the new A-4, Probably unnecessary but I lost my lsat A-4 due to elevator servo, My fault as I bypassed the "Captain Mike" Servo test!

[e4dragongunner]

Big shout out to Chris Wolfe, the RC Geek, for 3D printing some MER's for the Mk82's I am putting on my A-4. I modelled this plane back in the early 80's (BVM, ducted fan) but never completed the load out for it. Now I am getting to complete it with the Freewing A-4. He had to do some slight tweaking for the JHH 1/10th bombs to fit but they turned out exactly how I was hoping they would.

Wow Spectacular! I am currently doing the the Diamond Back livery. I am very interested in that centerline tank. Did you modify the one of the large wing tanks that comes with the Freewing A4?

Now I want 3D printer! :-)

[Hardway]

Awesome times!

[Hardway]

True! Landing is optional... LOL. That is why you can drop all that stuff! Ha!