Microlighters

Is it possible for your trikes pitch pressure to increase / decrease with air pressure?

On Sat & Sunday when I pulled bar to about 80 it wasn't too hard. Today I pulled bar and it felt TOO easy infact I was doing 80 with WAY less effort? On one simulated forced landing I did 90 only saw afterwards with GPS.

I practiced many forced landings today and each time noticed bar was just MUCH lighter than norm I even looked up at wing to make sure all parts were still there...

I thought it was 1 up vs 2 up, but even still it just felt MUCH lighter than I remember from last week.

Hi Diesel
Just to say I have absolutely NO idea what you are talking about. but I hope you come right.

Cheers San

P.s. I saw noboday wants to speak to you so I thought Ill speak to you

HI Diesel

It could be that maybe cos it is hotter the air is thinner and therefore you experiance less bar pressure, or there has been changes done to the wing and or attatch point ?

Your own aerie or Schools ??

Thanks Aerosan

It's on my plane, it just seemed like I needed half the strength needed for 80 mph as opposed to norm. I think it's related to airpressure hot day / cold? Or that I just had ProNutro or Blackcat...

Seriously though can air pressure affect the forces required to hold and push bar?

Hmm, the way I understand it the thinner the air the faster you have to go to get the same mass of air over the wing to create the same lift. The harder your engine must rev because there is less airmass for it claw onto. This is simplistic know. So at cruise speed you will have the same resistance on the bar because you are flying faster to make up for the lower pressure.

But then having said that the airspeed indicator will register a lower speed than actual speed through the air because the air is less dense.

And apparently they cancel each other out. So if you normally cruise at 50mph in less dense air you will have to cruise at 55mph (true airspeed/ speed through the air) but your airspeed indicator will register 50mph still. The only indication you would have of this situation is the engine reving higher because there is less pressure on the pitch And your GPS will read higher than your airspeed so you might think you have a tail wind component.

I think that about covers it, so I have no idea why the bar would feel lighter.