Do You Know! Why fountain pen is not allowed in airplane?

Why fountain pens leak in airplane?

  • Passenger airliners fly at an altitude approaching 40,000 feet. 
  • As you know with increasing attitude Atmospheric pressure decreases.
  • The cabin pressure of an aircraft at this height is the equivalent of being at 7,500 feet which has quite a severe impact on the inside of your pen as it will still have the same pressure it did at ground level.
  • So the pressure inside the pen is more compared to the its surrounding. When we are using the pen, the ink gets spilled due to varying pressure.
  • A large collection of ink will gather near nib/feed section of the pen whilst the expanding air will push the ink out.

TIPS FOR AVOIDING LEAKAGE:

1. This issue can almost always be avoided by ensuring your fountain pen is stored with the nib held up-right. This means that when the air inside the pen matches the air outside of the pen, the nib and feed area will have no issues with the air re-entering.

Image result for fountain pen leaking up2. Ensure your fountain pen is completely empty (no ink to leak out) or completely full (no air trapped inside) when you’re travelling. Do not attempt to use your pen on your flight’s ascent or descent.
3. Put your pens into a zip lock bag and carry them in your briefcase or carry-on. Keep your pocket pen in a cigar tube. And always keep your pocket pens nib up.

 4. Recent Solution :  Platinum, the Japanese pen brand recently released a fountain pen with revolutionary ‘Slip and Seal’ functionality. In short, this airtight mechanism reduces moisture evaporation, meaning that the pen can go for long periods of time without being used and the ink won’t dry out. The device will also protect against leakage brought on by changes in atmospheric pressure, but remember: 
Keep it stored nib-side up with a full cartridge/piston or keep it completely empty!

Comments

Post a Comment

Popular posts from this blog

EASA : Module17 Propeller Question - Answer

Image
EASA : Module17 Propeller Question - Answer On which type of turbo-propeller would you expect to find a parking brake a) compounded twin spool b) free turbine c) direct coupled twin spool Ans:b * Propeller blade angle a) increases from root to tip b) decreases from root to tip c) is constant along the blade length Ans:b * The purpose of the pitch change cams is to a) convert linear motion to rotary motion. b) convert rotary motion to linear motion. c) prevent windmilling Ans:a * What does the torque meter reading indicate in a gas turbine engine? a) Torque reaction at the reduction gear b)  Engine torque c) The ratio between engine thrust and engine torque Ans:a * The gear type pump in a C.S.U. or P.C.U a) lubricates the entire propeller system b)  boosts engine oil system pressure c) assist the governor valve to move Ans:b * The gear segments on the blade roots of a hydromatic propeller mesh with the a) stationary cam b)  torque tubes and eye b...
Read more

Canted Vertical Tails - Why are the stabilizers on planes like the F-18 and F-22 slanted?

Image
Why are the stabilizers on planes like the F-18 and F-22 slanted? The tail configuration is usually referred to as canted vertical tails, since the vertical stabilizers are canted away from being 90° straight up and down. As illustrated in the below photo of the F-18 Hornet, this design has become increasingly common on modern military aircraft. Canted vertical stabilizers on the F-18 Other well-known examples of this trend include the F-22 Raptor, F-117 Nighthawk stealth fighter, and F-35 Joint Strike Fighter. The feature traces its roots back to the 1960s when canted tails were incorporated into the SR-71 Blackbird and its predecessors, as shown below. Canted vertical stabilizers on the SR-71 Lockheed designers included these canted tails based on early research into stealth technology. As far back as the 1940s, engineers had realized that perpendicular surfaces, like vertical tails, generated strong radar returns. By canting the tails away from 90°, the radar cross-section (RCS) of ...
Read more

DGCA & EASA Module 15 : Part-13 Engine Starting and Ignition Systems Question

Image
DGCA & EASA Module 15 : Part-13 Engine Starting and Ignition Systems Question-Answer 1. In the H.E.I.U. the discharge resistors. A. allows the capacitors to discharge when the unit is switched off. B. allows sufficient voltage to be stored to provide relight facilities up to 55,000 ft. C. protects the unit from excessive voltages. Ans : allows the capacitors to discharge when the unit is switched off. Explanation: NIL. 2. In the H.E.I.U. the choke. A. prolongs the life of the plug. B. protects the unit from excessive high voltages. C. prolongs the discharge. Ans : prolongs the discharge. Explanation: NIL. 3. In an electrical starting system, the slow start resistor is short circuited by the. A. centrifugal Switch. B. time switch. C. overspeed switch. Ans : centrifugal Switch. Explanation: NIL. 4. The advantage of an air starter system is. A. it provides a more rapid start. B. it is light, simple and economical. C. there is ...
Read more