Durafly D.H. 110 Sea Vixen – Maiden Flight

Introducing the Durafly (from Hobbyking) D.H. 110 Sea Vixen. I built it an about an hour, glueing the wings, the booms and the horizontal stabilizer. Setup was easy and balancing it was a cinch! I’m powering it with a 4-cell 2650 maH Turnigy Nana-tech 35-70 C lipo battery.

In the air

As you can see in the video, take-off was uneventful, I let it catch speed and I applied a bit of back pressure to get it airborne. Once flying, it needed a bit of down-trim to get it flying nice and stable hands-off. It is very easy to fly, thanks to the huge wing area. It just wants to glide! I set my low rates at 70% with 35% expo and it seemed perfect for normal flying. Tip stalling it is practically impossible, thanks again to the huge wing area. Landings are very easy: I just cut power when doing the final approach and the Sea Vixen just floats in.

Summary

The D.H. 110 Sea Vixen from Durafly is one of my favorite planes in my fleet. It flies even gentler than the Vampire, but when kicked into high rates, it handles acrobatic maneuvers like a champ. Flight times are about 5 minutes with a good mix of cruising and acrobatic flying. It is not super fast, but very impressive in the air, it certainly scoots along with gusto. I wonder what a 12-blade EDF fan would do to the top speed.

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BAE Hawk – Maiden flight + crash video

This is the maiden flight video and eventual crash and demise of this beautiful plane. The damage isn’t too bad, just a shattered canopy and a busted nose section. I ordered a new canopy, and I’ll start fixing the nose this week. Hopefully flight #2 will go better.

The center of gravity should’ve been set at 85mm behind the leading edge per the instruction manual, but the seller said it was wrong and it should’ve been set to 65mm. The manual for the E-Flite version of this plane says 80 – 90mm.

I balanced it at 65mm from the leading edge, after stuffing a 1000mah 3-cell in the nose to balance the plane, but after I crashed it, the very experienced fellow rc-enthusiast that was helping me out with the initial flight told me that it looked too tail-heavy.

It seemed like I had too much throw on the ailerons, even though I lowered the throw to 70% with 35% expo, per said gentleman’s recommendation. What do you think happened?

Check out the picture gallery here.

 

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DH 100 Vampire – Maiden Flight Video

The de Havilland DH.100 Vampire, made by Durafly (Hobbyking) in PNF configuration. Featuring a 70mm EDF (electric ducted fan), electric retracts, EPO construction, a custom red paint job and powered by a 2650 mah 4-cell LiPo battery. This is the maiden flight of my second vampire.

This airplane flies great: excellent slow-speed characteristics due to its light weight and huge wing surfaces. Stay tuned for a photo gallery.

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