Sundowner Wing Flaps

A Lieberman" wrote in message
...
BTIZ wrote:

interesting... this is I presume with the flap lever in the "extended
and
locked position"..

HI BTIZ,

Yes, I pull the lever up, and the flaps go down. I put the lever down
to retract the flaps, and they stay down. "Operationally, extending the
flaps feels perfectly normal.

if you are at Ground speed zero.. on the ground.. no engine running.. than
that is perfectly normal.. just a little "drag" in the mechanism somewhere
that holds them in the down postion.

The flap lever, extends the flaps.. and it releases the flaps to either
retract or reduce to a lower flap setting.. the prop wash is enough to get
the flaps up.. the flaps are not mechanically connected to an "up lever", it
only holds and locks them down.. does that make sense.

Air loads in flight push against the "down stops" so the flap is more
responsive to the flap lever.

There are two reasons why the flaps are marked "No Step", one is they may
not support weight without being damaged, the second, if in the up position,
they may go to the down position when you step on them. (floor falling out
from under you) (trap door)

If the mechanic has looked and said they are ok.. I tend to agree.. I am not
a mechanic.

BT

BTIZ wrote:

If the mechanic has looked and said they are ok.. I tend to agree.. I am not
a mechanic.

I likewise am not a mechanic. I have owned a Cherokee whose flaps behaved in the
same way, and I was told it was not a problem. It's only annoying on the ramp
after you complete your preflight check and want to retract the flaps.

Occasionally if I put the flap handle in the fully retracted position, after
several seconds or minutes the springs would suddenly overcome the friction that
was holding the flaps extended, and the flaps would retract with a loud bang.
Scares the *%&@$ out of you, and can't be good for the flap mechanism.

Dave
Remove SHIRT to reply directly.

Just curious...What makes you think is the prop wash and not the
vibration of the engine?

Javier

[Not an A&P, haven't flown Sundowners in over 15 yrs]


"BTIZ" wrote in message news:ipuyb.333$yf.222@fed1read01...

SNIP
The flap lever, extends the flaps.. and it releases the flaps to either
retract or reduce to a lower flap setting.. the prop wash is enough to get
the flaps up..
UNSNIP
BT