Gross weight (Floats)

[minton]

Anyone have any ideas why the gross weight on floats is 100 lbs less?

Anyone working on an increase?

[C170U2]

Per the A model POH the max gross weight on floats is 1975, without floats is 1900.

[GAHorn]

Per the A model POH the max gross weight on floats is 1975, without floats is 1900.

Gross wt of the landplane is 2200.

Floats impact the balked-landing-climb requirements and add stress to the doorposts, firewall, and attachpoints. Reducing the Gross Wt. reduces those problems (among other things.)

[C170U2]

Ooops, I was looking at the "Utility" portion of the manual. Sorry for the misinformation...

[minton]

Per the A model POH the max gross weight on floats is 1975, without floats is 1900.

Gross wt of the landplane is 2200.

Floats impact the balked-landing-climb requirements and add stress to the doorposts, firewall, and attachpoints. Reducing the Gross Wt. reduces those problems (among other things.)

George,

That's what I'm getting (Balked landing) C-145/0-300. With 0-360 and 175 wings (2550 gwt) STOL kit/VG's, 80 Hartzell, mine definitely performs. Rumor has it that Del-Air was looking into a GWT increase for C-170's but I've been unable to confirm it through his old outfit or Wipare.
In researching structure issues I have not found the 170B to have many negatives that would hinder an increase. Station 90 would probably need a little work. Heck 2300 lbs would be great vs 2100 (Float) now.
Anyone interested in teaming to get a DER to look into it??

[minton]

Stoots aviation sez a combination of larger engine and larger tail feathers such as the 170 "C". Anbody have pictures of such??

[minton]

In combination with Wipline 2100's you get gwt of 2200lbs. ART/WingX STC for GWT of 2400lbs is a bust. He's blow'in smoke about getting it approved in the US. Been at it for years with no results.

[kbbell]

Is the WingX approved for 2400 lbs in Canada?

[minton]

[quote="kbbell"]Is the WingX approved for 2400 lbs in Canada?

According to WingX, Yes

[CF-HEW]

I believe the 2106 lbs gross weight on floats is an Edo 2000 limitation due the the buoyancy (lack thereof) of the floats. Is it not 2200 lbs with larger floats?

[minton]

Wipline 2100A has STC for C-170 A/B 2200lb gross. (STC00804CH) the 2106 lb number shows up in the TCD sheet but doesn't mention the EDO float although it does in other areas so who knows??