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---------

Signed-off-by: Ramon Roche <mrpollo@gmail.com>
Co-authored-by: Ramon Roche <mrpollo@gmail.com>

docs/zh/frames_vtol/tailsitter.md

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+# 尾座式垂起
+
+A **Tailsitter VTOL** takes off and lands on its tail, but flips into the fixed-wing orientation for normal flight.
+The tailsitter rotors are permanently fixed in position for forward flight.
+
+Tailsitters are typically mechanically less complex than [other types of VTOL](../frames_vtol/index.md), and hence may be less expensive to build and maintain.
+However they are aerodynamically more complex, and can be harder to tune and fly for hover and transition, particularly in windy conditions.
+
+## Tailsitter Airframes
+
+:::: tabs
+
+:::tab Duo Tailsitter
+Two rotor VTOL that uses elevons to flip from hover into fixed-wing flight.
+
+![Wingtra: WingtraOne VTOL Duo Tailsitter](../../assets/airframes/vtol/wingtraone/hero.jpg)
+
+- Forward flight more efficient
+- Hover harder to fly, particularly in wind
+- Hover and transition harder to tune
+- More compact form factor
+
+:::
+
+:::tab 立式垂直起落飞机
+VTOL with optional elevons. Uses rotors to transition between modes (along with elevons if present).
+
+![Skypull SP-1 VTOL QuadTailsitter](../../assets/airframes/vtol/skypull/skypull_sp1.jpg)
+
+- Hover mode easier to fly and more stable
+- Less compact form factor (harder to transport)
+- "X" and "+" rotor configurations are supported (see Airframe Reference)
+
+:::
+
+::::
+
+Duo Tailsitters are generally more efficient in cruise flight (4 smaller propellers are less efficient than 2 larger ones) and physically more compact.
+However as they are aerodynamically much more complex in hover mode, they are much harder to tune for both hover and transition.
+Quad tailsitters are easier to fly in hover mode, and more stable in windy conditions.
+Both are supported using the same aiframe type in PX4.
+
+## Setup/Flying
+
+VTOL setup and flying are covered in the [VTOL](../frames_vtol/index.md) parent topic.
+
+:::info
+The instructions are essentially the same for all VTOL.
+The main frame-specific differences are the motor wiring, and some aspects of tuning the configuration.
+:::
+
+## Build Logs
+
+Step-by-step guides of how to set up PX4 on tailsitter frames are listed below:
+
+- [TBS Caipiroshka Tailsitter Build (Pixracer)](../frames_vtol/vtol_tailsitter_caipiroshka_pixracer.md)
+
+:::tip
+We recommend that you also review build logs for other PX4 VTOL, and Copter vehicles (most of the setup is the same).
+:::
+
+## 视频
+
+This section contains videos that are specific to Tailsitter VTOL (videos that apply to all VTOL types can be found in [VTOL](../frames_vtol/index.md)).
+
+### Duo
+
+---
+
+[TBS Caipiroshka](../frames_vtol/vtol_tailsitter_caipiroshka_pixracer.md) - Tailsitter takeoff (close up), hover, level flight, transitions.
+
+<lite-youtube videoid="acG0aTuf3f8" title="PX4 VTOL - Call for Testpilots"/>
+
+---
+
+[Woshark](http://www.laarlab.cn/#/) _PX4 Tailsitter prototype_ - Tailsitter takeoff, transition, landing.
+
+<!-- provided by slack user xdwgood: https://github.com/PX4/PX4-user_guide/issues/2328#issuecomment-1467234118 -->
+
+<!-- Update issue https://github.com/PX4/PX4-user_guide/issues/3007 -->
+
+<lite-youtube videoid="gjHj6YsxcZk" title="PX4 Autopilot Tailsitter"/>
+
+### Quad
+
+[UAV Works VALAQ Patrol Tailsitter](https://www.valaqpatrol.com/valaq_patrol_technical_data/) - Tailsitter takeoff, transition, landing.
+
+<lite-youtube videoid="pWt6uoqpPIw" title="UAV Works VALAQ"/>
+
+## Gallery
+
+<div class="grid_wrapper three_column">
+  <div class="grid_item">
+    <div class="grid_item_heading"><big><a href="https://wingtra.com/mapping-drone-wingtraone/">WingtraOne</a></big></div>
+    <div class="grid_text">
+    <img src="../../assets/airframes/vtol/wingtraone/hero.jpg" title="Wingtra: WingtraOne VTOL Duo Tailsitter" alt="wingtraone" />
+    </div>
+  </div>
+  <div class="grid_item">
+    <div class="grid_item_heading"><big><a href="https://www.skypull.technology/">Skypull</a></big></div>
+    <div class="grid_text">
+      <img title="Skypull SP-1 VTOL QuadTailsitter" src="../../assets/airframes/vtol/skypull/skypull_sp1.jpg" />
+    </div>
+  </div>
+  <div class="grid_item">
+    <div class="grid_item_heading"><big><a href="../frames_vtol/vtol_tailsitter_caipiroshka_pixracer.html">TBS Caipiroshka</a></big></div>
+    <div class="grid_text">
+      <img title="TBS Caipiroshka" src="../../assets/airframes/vtol/caipiroshka/caipiroshka.jpg" />
+    </div>
+  </div>
+  <div class="grid_item">
+    <div class="grid_item_heading"><big><a href="http://uav-cas.ac.cn/WOSHARK/">Woshark</a></big></div>
+    <div class="grid_text">
+      <img title="Woshark" src="../../assets/airframes/vtol/xdwgood_ax1800/hero.jpg" />
+    </div>
+  </div>
+  <div class="grid_item">
+    <div class="grid_item_heading"><big><a href="https://www.valaqpatrol.com/valaq_patrol_technical_data/">UAV Works VALAQ Patrol Tailsitter</a></big></div>
+    <div class="grid_text">
+      <img title="UAV Works VALAQ Patrol Tailsitter" src="../../assets/airframes/vtol/uav_works_valaq_patrol/hero.jpg" />
+    </div>
+  </div>
+</div>