Moment arm for W&B.

[T. C. Downey]

what measurement in inches for the main gear and the tail wheel?

[T. C. Downey]

On a B model, I believe it is 110 inches from the firewall to the main gear and another 227 inches to the tailwheel.

http://www.cessna170.org/forums/viewtop ... ce#p100488

Knowing the bottom of the fire wall is the datum, it can't be 110 inches from there to the main gear.

[T. C. Downey]

According to the W&B from Cessna on my plane it is 22" from the firewall to the mains and another 227" from the mains to the tailwheel.

That's reasonable

[T. C. Downey]

I found a photo of a 170 online with a 110" arm to the mains. Field approval?

1955_170B Cessna Ext from brochure.jpg

Photo chopping is a minor alteration.

[Bruce Fenstermacher]

From the TCDS

(a) 2 Main wheel 4 ply-rating tires, 6.00-6, 18 lb. (+22) (+22) (+22)

(a) Scott Model 3-24B, steerable 5 lb. (+246) (+246) (+246)
*(b) Scott Model 3200, steerable, swiveling 8 lb. (+249) (+249) (+249)

The A measure or distance from the datum to the main axle is 22".
The B measure or distance from the main axle to the rear axle is dependent on the tail wheel at either 224" or 227".

Of course this is under ideal conditions from the factory and in the case of the tailwheel isn't necessarily to the axle but the center cg of that part.

We all know it is not what the TCDS says but what your aircraft now actually measures. One could have 180 gear changing the main axle location and depending on the actual arc of your tailwheel spring the rear axle could be different. My own first 170 actually measured 22.4" for A and 228.68" for B when I carefully measured it over and over trying to match "factory" specs.

[johneeb]

Arish,
Is that some kind of green airplane speed mod?

[Ryan Smith]

I found a photo of a 170 online with a 110" arm to the mains. Field approval?

1955_170B Cessna Ext from brochure.jpg

You're a day late and a dollar short.

[T. C. Downey]

34v turned out heavier than I wanted at #1325, #1287 with out the rear seat out,

[T. C. Downey]

On a B model, I believe it is 110 inches* from the firewall to the main gear and another 227 inches to the tailwheel.

*EDIT/CORRECTION: It is 22" from the firewall to the main gear, not 110"

http://www.cessna170.org/forums/viewtop ... ce#p100488

I was still giggling about the numbers and the wording. firewall to gear 110" plus another 227 = 337"/12 = 28 feet, but it still fits in my 30 foot hangar with the cowl on .i'm laughing with you, not at you

[GAHorn]

On a B model, I believe it is 110 inches* from the firewall to the main gear and another 227 inches to the tailwheel.

*EDIT/CORRECTION: It is 22" from the firewall to the main gear, not 110"

From another thread:

http://www.cessna170.org/forums/viewtop ... ce#p100488

I was still giggling about the numbers and the wording. firewall to gear 110" plus another 227 = 337"/12 = 28 feet, but it still fits in my 30 foot hangar with the cowl on .i'm laughing with you, not at you

800px-Cessna.206h.stationair2.arp.jpeg

[blueldr]

George,
Has that 206H got a retractable tail wheel?

[GAHorn]

You'll have to ask the original poster. I only copied it from another thread.