Dog Glider
Dog flies a glider, it launches by sliding down hill.
Dogs can ride snow sleds and control skateboards. (see links)
They should be able to fly gliders as well. Basically a snow sled with wings.
I'm also thinking it might be possible for them to get a rolling glider up to speed on a flat surface, jump on it and shift their weight so it aims the wing equipped skateboard up long enough to do a short glide.
No ailerons, too heavy, just the twist wing control surface like the Wright Flyer used.
Now you'd probably need the pooch to launch into a good enough headwind but it would be flying dogs, which is after all, the goal here.
Credits: doctorremulac3 of HalfBakery.
+[企画]
想像するのは楽しい。
犬の品種によっては、小さくて自力で持ち上げるのに十分な速さがあると思いますが、翼が加速を妨げる可能性があるため、特定の風速が記録されると翼が拡張し、重量を持ち上げると通常の状態に戻ることができます。ネガティブ。
だから、私は適切な速度に達すると自動的に翼を拡張する犬をイメージしています（空気を入れたピストンで簡単に行うことができ、空気を解放して収縮させ、小さなバッテリーとポンプで圧力を元に戻すことができます）
Just fun to imagine.
I guess some breeds of dogs are small and fast enough to lift off all on their own, but wings would likely impede the acceleration, so, we could make wings that expand when certain windspeed is registered, and released back to normal when lifting weight becomes negative.
So, I'm imaging a dog that expands the wings automatically, when reached appropriate speed (could be done easily with air-loaded pistons, which would release the air to retract, small battery and a pump could restitute the pressure)