Official Freewing 90mm F-15C Eagle Thread

[guylookingup]

DCORSAIR,

Thanks also for the input. I watched one of the videos and noticed the "pyramids" near the rear of the exhausts. Now that I know that the vert stabs are a bit more of a struggle than I knew, I'll go ahead and make some recesses in the foam as you suggest. Thanks again for the help guys!

[DCORSAIR]

For the verticals, I just went in with a xacto knife and very carefully cut some of the foam out to the rear, if you do it right it will make a small channel for the wires to be pushed into when installing the verticals, and on my very first F-15 those small triangle looking pieces were already on but were broken in shipping so I think to many people found them broken also from shipping, so on my second F-15 I noticed I had to glue them on myself, they go on the rear in between the elev. and exhaust nozzles, you just have to line them up the best you can, there is a left and a right one, directions don't tell you which way they go.

[guylookingup]

crxmanpat,

Thanks for the information! I'll keep struggling with getting the vert. stab on knowing that others are sharing my misery! :-)

Also, thanks for the information on the "pyramids!

[crxmanpat]

Those two triangles go on the rear next to the exhaust nozzles. If you look at the pic on Page 2 of the manual, you'll see them sticking out the back of the plane. There is no step in the manual that shows their installation. I think originally they were supposed to already be glued on, but the shipping box prohibited it.

As for the verticals, that was the hardest part of the build. You just have to work everything into the channel carefully to get them to fully seat. Tweezers or small needle nose pliers help here.

[guylookingup]

Guys,

A couple of real basic questions...

I received my F-15 yesterday and pretty much have it assembled except for a couple items:

1) What are the two foam (silver) "pyramids" that are in the box? Looks like a left and right item for something...just don't see anything in the instruction manual, They are about 3 inches tall and generally triangular in shape.

2) Is there clever method of getting the vertical stab/rudders on? The rudder servo and light connectors are causing me some problems. I am trying to get the connectors down into the cavity on the fuselage but having a difficult time of it.

Other than that, I am very happy with the overall appearance and assembly of the jet. Looks like a lot of fun to fly from the videos all of you have posted!

Thanks for any help or suggestions.

[Calla]

F-15 Aggressor 8S

[gooniac33]

Finally a good video of my F-15!! My buddy and I got in a good formation flight and a local club member got video...

[LOWROLLER]

Can I use an Admiral 4500 mah pack in this jet? I know I will only get about 3 minutes of flight time, my concern is will it balance out ok with it.

[Evoman]

I have the high performace power pkg in my F-15 and was flying with all the weapons on it right from the first flight, it flew really good but had a little tracking issue I didn't like, so a few flights ago I took off the weapons and pods, Wow is all I can say, it tracked so much better and the speed of course is better, So yes it flies good with it loaded up and you don't have to fly at full power but it flies so much better clean. Hope this helps with your decision, it does look better loaded up though, looks ready for a mission.

It would be nice if there was some sort of kit on the market that allowed for the jettison of the stores. That way you can take off fully loaded then half way through the flight you drop the load, enjoy some clean flight time and land with empty stores just like a real jet would have coming back from a sortie.

[gooniac33]

You could retain the use of the air brake by connecting it to a multi switch that is controlled by the same channel as your retracts. Check out this video to see what I mean.

I don't need it. It never worked right for my style of landing anyway.

I got some more great flights with mine this past weekend! Thankfully a friend got a good high quality 4k video review of my set up. I will post before and after videos so that you can see the difference...

[DCORSAIR]

I have the high performace power pkg in my F-15 and was flying with all the weapons on it right from the first flight, it flew really good but had a little tracking issue I didn't like, so a few flights ago I took off the weapons and pods, Wow is all I can say, it tracked so much better and the speed of course is better, So yes it flies good with it loaded up and you don't have to fly at full power but it flies so much better clean. Hope this helps with your decision, it does look better loaded up though, looks ready for a mission.

[AZFlyer]

Got 3 flights on my F-15 yesterday. This plane flies so great! Just wish I could get 4+ minutes out of it. I put the HiPo fan in it, so I don't have to fly at full power most of the time. But, I'm still just getting 3 1/2 minutes from taxi out. At 1 minute I start the landing cycle and usually pull in when the clock runs out. That leaves me with 20-25% on my Admiral 6S 5000 pack. Every once and a while I'm down to 15-18%, and the battery is smokin'.

It's a great 3 1/2 minutes, though. Nothing looks better than that plane screaming by and then pulling a hard back away ----- Love it!

Anyone know how this plane flies with the missile package? I guess I'd be at full power all the time then.

[Evoman]

Ok well I got the gyro installed on the plane. Since I am using the Lemon 7ch I needed to remove the air brake servo wire which is fine with me. I rarely use it anyway and would much rather have a gyro instead of a brake that is not very useful....

You could retain the use of the air brake by connecting it to a multi switch that is controlled by the same channel as your retracts. Check out this video to see what I mean.

[gooniac33]

Well I got 3 flights on my F-15 yesterday and am now in love with it all over again. I have been fiddling with my Lemon RX w/3 axis gyro to get rid of the wiggle and finally have. What blew me away was how much rudder gain was required to do that!! The gain is almost all the way up and now the plane goes where you point it with no wibble wobble at all!! Now it flies and tracks just like the real deal! I looked amazing yesterday and now I don't want to stop flying it! Landings were buttery smooth, the approach was rock solid with no tipping. No video this time but I will get some next time. I did low slow passes and low fast passes. All were rock solid and need to be seen to be appreciated.... video to come!

[gooniac33]

Ok well I got the gyro installed on the plane. Since I am using the Lemon 7ch I needed to remove the air brake servo wire which is fine with me. I rarely use it anyway and would much rather have a gyro instead of a brake that is not very useful...it worked out pretty well but the results were puzzling. I turned down all gain and used just a tad on aileron. it helped but there was still quite a bit or wobble. So I decided to bump the rudder and see what the plane did. That is where all the wobble is coming from!! It did some wonky stuff when I touched the rudder! So the rudder or vertical stabs are the reason for the rock. I will be tweaking the rudder and aileron gain to get it all right.. I may even take a video of the results too. My landing was perfect but the landing gear had been cracked for a while and finally gave up. I will repair that and then get it back into the air...

[urrl]

[Droptanks]

I'm using a Spektrum AR9100 RX that requires 6V input so I need to replace the UBEC. Will any 6V 8A ubec suffice? Will these servos work at 6V?

thanks!

[bill34207]

Other than bummer, only one thing to say. Order quickly if you want the A-10 and don't expect it before late June. Pre-order 1 on it it should be shipping late next week (I hope)

[urrl]

The longer I own my jets the more careless I get sometimes. On the bright side now I have room for a new twin 80/90mm A-10...

[dusmmdb]

the width of your flying area...... wow