TulsaWeather
Pre-takeoff checklist
Thankfully he's still a friend.
I was riding in the backseat of a 172 while my friend flew his dual (hooded) x/c with a mutual friend/CFI in the right seat. Why not make it a trip to go eat at an on-field restaurant?
Amigo takes off, dons the foggles, and we get established on the airway nicely, and climb to altitude and he trims the plane up perfectly.
I lean all the way back, altitude increases/airspeed decreases, amigo retrims.
I lean forward to just behind the front seats, altitude decreases/airspeed increases, amigo retrims.
I repeat this cycle, unseen by either at about one minute intervals. On the third cycle, our CFI friend starts laughing w/out even looking. He had figured it out.
On about the tenth cycle, amigo finally asks on intercom why the plane isn't holding trim. CFI suggests he ask me.
Anyone need a backseat passenger?
I was riding in the backseat of a 172 while my friend flew his dual (hooded) x/c with a mutual friend/CFI in the right seat. Why not make it a trip to go eat at an on-field restaurant?
Amigo takes off, dons the foggles, and we get established on the airway nicely, and climb to altitude and he trims the plane up perfectly.
I lean all the way back, altitude increases/airspeed decreases, amigo retrims.
I lean forward to just behind the front seats, altitude decreases/airspeed increases, amigo retrims.
I repeat this cycle, unseen by either at about one minute intervals. On the third cycle, our CFI friend starts laughing w/out even looking. He had figured it out.
On about the tenth cycle, amigo finally asks on intercom why the plane isn't holding trim. CFI suggests he ask me.
Anyone need a backseat passenger?

. He didn't notice that happen as he must have had his eyes out of the plane. A minute of so later, he switched over to some ATC to request clearance to transition the airspace. I'm pretty sure it was a military base but I don't see that near Seattle right now so maybe we were elsewhere. After trying a few times and not getting any response as we got closer and closer, it finally dawned on him to check the volume.