ICARE Sailfish 1M F3K Sailplane

The ICARE Sailfish is a 1M class DLG suitable for intermediate and beginner sailplane pilots.

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Entry Level DLG

The ICARE Sailfish is a 1M class DLG suitable for intermediate and beginner sailplane pilots. It comes as a kit or as a PNF that is receiver ready. The kit version will take 7-10 hours to build and the PNF can be ready to fly in less than an hour. It's built with a blend of wood and composite materials and features a simple two channel design with the only controls being elevator and rudder. The flying weight is right around 4oz and it should go up in very light lift. The kit version is selling for $129 and the PNF is listed at $289.

Check out the Sailfish F3K Kit Here

Check out the Sailfish F3K PNF Here

Specifications

  • Wing Span: 900 mm (35.4")
  • Length: 680 mm (25.8")
  • Wing Area: 10 dm2 (155 sq. in.)
  • Wing Loading: 11.4 g/dm2 (3.7 oz/sq. ft.)
  • Flying Weight: 115 g (4.05 oz)

Sailfish F3K 900 (1 min 51 sec)

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Jun 01, 2018, 02:28 PM
TheyreComingToTakeMeAway!
derk's Avatar
Really cool looking plane, I like that the kit comes with the covering and glue and an assembly jig!

Also some of the pictures here don't show that the wings have sheeting on the leading edge.
Jun 02, 2018, 08:46 PM
Registered User
0.9 meters. When models get this small, it makes a difference. Per the specs, the span squared loading is a bit on the high side, equivalent to a 13 ounce 1.5 meter dlg. I wonder if some part is extra heavy or if there was a mistake in the quoted weight.
Apr 18, 2019, 08:51 PM
Registered User
agfrag's Avatar
As I don't see a lot of activity on this thread, I thought I'd post my experiences.

I purchased the latest version, the “Sailfish F3K 924” at the Toledo RC Swap meet/show, and followed the video instructions to build the kit. As a foamy guy, I ended up putting a lot more time in the build than was absolutely necessary I suppose, but it all turned out just fine. In my humble opinion as a first time DLG builder, I thought that the wordless video was not as helpful as it could have been (there is a lot of hand waving without explanation in a couple of the videos... I think they just removed the talking part to make it an international version, I could be mistaken), but I did manage to complete the build. Oh, and as I didn't like the included covering color that much, I covered it in Ultracote Transparent Purple, what the heck.

Knowing nothing about DLGs in the first place, I was pleasantly surprised to see how well it flew, and the weight I got was about 10 grams under the 135g stated weight... maybe it was because I blotted each application of CA, maybe my covering was lighter, maybe my battery was lighter, I dunno.

I was quite surprised to see how very little trim was necessary to cause a great affect on the launch angle. I found that if I changed it by even a couple degrees, it made a huge difference, like in having the plane head up at a decent angle, to having it go straight up and behind me lol. Thank heavens for the tall grass in the field!

I had the luck and opportunity to fly on a hill on a very windy day, and despite very poor landings, I did not manage to cause much more than a few scrapes on the nose and right wingtip.

To give it a true revue, I'd have to be an experienced F3K pilot, and I'm not, so for what it's worth, I am enthralled by this little DLG, and am looking forward to trying some more discus launches on a calm day, if that ever happens here in S.E. Michigan!

Here's the full, probably boring sloping attempt video I took with my head mounted GoPro, man was that fun!

First DLG Slope Attempt (14 min 55 sec)
Apr 20, 2019, 10:46 AM
Registered User
Nice video. I have my build thread over here:

https://www.rcgroups.com/forums/show...4-1M-Kit-Build


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