Flaps for TO and Landing (Wheel Landings article)

[Kyle Wolfe]

You sure know how to make a guy envious, Dave!

Of course I could always try and trade some elk, pheasant or deer country secrets for the location of that special moose spot.

[AR Dave]

Randal's already working on you and him a hunt!

[N3067A]

My normal T/O ('53 170B) is one notch of flaps, short field-start with one notch & put in the second notch just before I pull it off, soft field-two notches from the start.
Normal Landing is three notches, strong crosswind-two notches, soft field-four notches.
I almost always wheel land except for soft fields, where I 3-point.
On normal or short field landings, after both mains are on the ground, I dump whatever flaps I landed with down to one notch ( I can go from two, three, or four down to one with just an arm movement, dumping all the way to zero requires I lean down into it which I'd rather avoid until I've slowed to taxi speed).
On a go-around, after I've applied ALL the available power (incl. carb heat-OFF) and insured that I'm holding the attitude where I want it (applying full power with the flaps & trim configured for landing WILL require you physically hold the nose down until you either re-set the flaps or the trim). Now-with go-around power and proper nose attitude I'll drop the flaps to the second notch if they were higher. Then re-start my heart and proceed like any normal climbout, positive rate of climb--flaps to one notch when accelerating--when the airspeed gets to 70, flaps to zero.
FWIW, that's my technique?
John C. Saubak
Peerless
Montana

[GAHorn]

When discussing flap settings, it might be more helpful to refer to DEGREES of flaps rather than "notches" since some airplanes have differentl flap sectors. Is ONE notch ZERO degrees? Or is it 20-degrees? (Or is it 10-degrees?)

[N3067A]

Sorry 'bout that? I "think" in terms of "notches".
no flaps--------Zero
one notch------10 degrees
two notches----20 degrees
three notches--30 degrees
four notches----40 degrees

My '53 170B was just two places ahead of your's on the assembly line,
Ser. # 25711

[jmbrwn]

My '49 C170A has four notches of flaps, but everything I've read only tells me with full flaps I have 50 degrees...not giving the degrees of the other settings. I guess I could go out to the airport and measure, but does anyone here know what they are off chance?

[N3067A]

This information is indicated in the owners manual (POH?) for the "B" model. Perhaps it's in the manual for the "A" model as well?
John C. Saubak

[jmbrwn]

Nope...I have a POH for the 'A' model...not there.

[dacker]

49' A model: 10, 20, 30, 50. But it only matters a little.
David

[jmbrwn]

Thanks Dacker....where'd you find this info anyway?

[GAHorn]

Rigging information (including flap defelctions) can be found in the Owners Manual.