Alfa bow planes

[george]

Thank You for the lesson. Can I ask you about the last picture above? I see two little brass rod stubs, one at each bow plan, what is their function?

[He Who Shall Not Be Named]

Question about Bow planes support rods. I think the norm is to use 1/8" brass here in the West. Anyone have running experience with these? I was wondering IF because they are exposed with no support like the stern planes have. Has there been cases of shafts being bent while in normal use? IF so that would call for a thicker shaft if the bow planes are to be retractable and be able to be pivoting.
Your thoughts?

On this little 1/96 ALFA the 1/16" diameter brass bow plane operating shafts are the sacrificial element in a collision or rough handling. It's nothing to yank out the bent operating shaft (or, more likely, just bend it back) from the bow plane and replace it. The bow plane operating shaft bearing (a short length of 3/32" o.d. brass tube) is glued within the hull -- and that ain't bending!










David

[type7]

Yes the shafts of the bow planes get bent and sometimes the mounting gets torn loose of the bulkhead. The question is not if the shaft is strong enough but what do you want to give out when the bow plane strikes a hard object?

[george]

Question about Bow planes support rods. I think the norm is to use 1/8" brass here in the West. Anyone have running experience with these? I was wondering IF because they are exposed with no support like the stern planes have. Has there been cases of shafts being bent while in normal use? IF so that would call for a thicker shaft if the bow planes are to be retractable and be able to be pivoting.
Your thoughts?

[Bob Gato]

Consider using a modified version of the Bob Martin/Ed Tordahl linear servo mechanism-this way you wont have to articulate the connecting rods..

[trout]

Love your mind Scott!

[He Who Shall Not Be Named]

Wheel is still loose. Sketch attached.

Beautiful, Scott. Clean, crisp, simple. KISS.

David

[Scott T]

Wheel is still loose. Sketch attached.

[He Who Shall Not Be Named]

You picked a fine time to leave me loose wheel!

LOL! (Ellie had to explain it to me). Very good, Bob.

David

[Bob Gato]

You picked a fine time to leave me loose wheel!

[Scott T]

Maybe later. Wheels off the tractor needs a fix.

[He Who Shall Not Be Named]

ouch! Tough to ask to see better, Wait till you youngsters get old and eyes act up!

Welcome to Thunderdome.

David
Master/Blaster

[george]

ouch! Tough to ask to see better, Wait till you youngsters get old and eyes act up!

[He Who Shall Not Be Named]

Hi Scott T
Any chance you could draw that out in darker ink? Also hard to read the writing. The image is not dark enough to be seen easily for me with glasses on.
Also Thank You for stepping up with a design mechanism!!!!
George

That's right Scott! Hand it to him on a platter or you're not living up to you obligations here. You cad!

No good deed goes unpunished.

David
The Slacker

[george]

Hi Scott T
Any chance you could draw that out in darker ink? Also hard to read the writing. The image is not dark enough to be seen easily for me with glasses on.
Also Thank You for stepping up with a design mechanism!!!!
George