✈️ Virus SW-80 SOP – Chapter 2 | Limitations, Prohibitions & Restrictions Explained

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Virus SW-80 SOP – Chapter 2 | Limitations, Prohibitions & Restrictions Explained

Flying is not just about skill.
It is about discipline and limits.

In this blog, we cover Chapter 2 of the Virus SW-80 SOP – which defines the operational boundaries of the aircraft.



This chapter is extremely important for:

🎥 Watch the Full Video Explanation

I have explained all limitations, prohibitions, and performance effects clearly in this video:

👉 Watch here:
🔗 https://youtu.be/uuEmYLapKxM

Watch carefully — this chapter is often asked in exams and viva.

📄 Download Chapter 2 PDF (Slides)

For structured revision, download the complete slides:

👉 Download PDF:
🔗 https://drive.google.com/file/d/1TFF5zEdtU6dD2-j-C3KG2pK8bdZB6X-S/view?usp=sharing

Use the PDF for quick memorization before exams.

📘 CHAPTER II

LIMITATIONS / PROHIBITIONS / RESTRICTIONS

This chapter tells you what you can do,
what you must not do,
and under what conditions the aircraft performance changes.

🛩️ 1. MANOEUVRE LIMITATIONS

These are minimum height and speed restrictions for safe maneuvering.

(a) Power On / Off Stalls

❌ Not below 1500 ft AGL

(b) Power On / Off Lazy Eights

❌ Not below 1500 ft AGL
✔ Entry speed: 110 Kts

(c) Steep Turns

✔ Initial speed: 100 Kts

(d) Chandelle

✔ Entry speed: 120 Kts
❌ Not below 500 ft AGL

(e) Spin Initiation

❌ Not below 2500 ft AGL
✔ Recovery must start within maximum 180° of spin

(f) Operational Approval

✔ Aircraft approved for Day VFR only

No night flying.
No IFR operations.

🚫 2. PROHIBITIONS

The following operations are strictly prohibited:

❌ Flying with both doors open
❌ Flying in heavy rainfall
❌ Flying in thunderstorms / known icing
❌ Flying in blizzards
❌ Flying in IMC / IFR conditions
❌ Flying when OAT above 55°C
❌ Using fuel with more than 10% alcohol
❌ Aerobatic manoeuvres including full developed spin
❌ Take-off & landing with flaps fully retracted

If it says prohibited — there is no discussion.

⚠️ 3. LIMITATIONS / RESTRICTIONS / WARNINGS

These affect aircraft performance and safety.

🌬️ Wind Limits

  • Maximum wind for parking (without tie-down): 15 Kts
  • Maximum wind for parking (with tie-down): 40 Kts

⛽ Fuel Indication Warning

Flying in side slip turbulence may give non-precise fuel quantity indication.

🌱 Soft Grass Runway Effect

Soft/unpaved runway increases take-off performance data by 20%.

Meaning: You need more runway.

💨 Headwind Effect

Headwind reduces take-off & landing distance by:

➡ 8 meters for every 3 Kts (5 km/h) increase

🌪️ Tailwind Effect

Tailwind increases required distance by:

➡ 18–28 meters for every 3 Kts (5 km/h) increase

⚠ Tailwind affects performance more than twice as much as headwind.

Remember this line. It’s commonly asked.




🎯 Why Chapter 2 Is Very Important

This chapter builds your airmanship and judgment.

As someone preparing for SSB and aiming for Armed Forces, understand this:

An officer is judged not by how aggressively he flies —
but by how responsibly he respects limitations.

Memorize the numbers.
Understand the logic behind them.

📌 Smart Study Method

1️⃣ Watch the video fully
2️⃣ Revise using the PDF
3️⃣ Make a small notebook with all speed & altitude limits
4️⃣ Practice oral recall (important for viva)

🚀 Final Words

Chapter 2 is about discipline.

If you respect limits, you fly safely.
If you ignore them, you invite accidents.

Study this chapter seriously.

📢 Don’t forget to:

👍 Like the video
💬 Comment your doubts
🔔 Subscribe for next SOP chapter

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