Two engraved black throttle knobs for sale

[Joel Severinghaus]

I don't remember why I made extras, but I have two new black plastic throttle knobs (from Aircraft Spruce) that I paid a trophy company to laser-engrave with the "throttle push to open" wording that matches the original Taylorcraft throttle knobs.

They look like the black knob on the right in the attached photo, but you'll need to put the white paint in the engraved lettering yourself.

$25 each, which includes postage.

[1938BF50]

Re: Two engraved black throttle knobs for sale

Joel,

Do you remember the thread size?

[Bird]

Re: Two engraved black throttle knobs for sale

I sent you a e-mail I'd like to get 1 please.

[1938BF50]

Re: Two engraved black throttle knobs for sale

Joel,

I want the other one if it will fit my factory "B" setup. Thanx.

[Joel Severinghaus]

Re: Two engraved black throttle knobs for sale

Bird, got your email, I'll put a knob in the mail to you tomorrow.

1938BF50, the knob has 1/4-28 internal threads. Will that fit your throttle shaft? If so, the second knob is yours -- PM me your mailing address.

[Joel Severinghaus]

Re: Two engraved black throttle knobs for sale

Both knobs SOLD to Michael in North Carolina and Mike in Wisconsin.

If anyone else needs a throttle knob, it's Aircraft Spruce p/n 05-29100, 2" diameter, $4.50. I took a new black knob and an original red knob to a trophy shop and asked them to laser-engrave wording that matched the font and letter heights on the original knob. The engraving cost about $25.

See also our other thread about original red throttle knobs.

[Larry Lyons]

Re: Two engraved black throttle knobs for sale

Question: can you powder coat the black plastic knob red? If no knows for sure I may have to experiment a bit. The knob is made of a thermal set type plastic and might just take the heat of powder coating. Then engrave and fill in the engraving with a white grease pencil. I have been working on my A-7 mag switch and with a bit of work it looks like the grease pencil is going to work great in the embossed lettering on my switch. I plan on clear coating the switch to protect the lettering.
Larry

[Robert Lees]

Re: Two engraved black throttle knobs for sale

Powder coating is an electrostatic process...so if it's not made of conductive material, you can't do it.

[Hank Jarrett]

Re: Two engraved black throttle knobs for sale

You "can" do it, but you don't want to. We did some experiments when I was doing engineering for NAVAIR where we coated non-conductive materials with carbon based conductive lacquer. We then did a copper plate over the carbon and chrome over that. Powder coat would work just as well.
On a bet we chrome plated a pile of dog "dropping". Didn't take long for it to get stolen. Wonder what happened when it inevitably got dropped and cracked open.

Anyway, it CAN be done, but you don't want to see what it would cost, and the weak link is the bond between the lacquer and the plastic. Lacquer isn't as good as powder coat and lacquer with carbon doesn't stick as well as straight lacquer. We never ended up using the process for anything but research.

I would just paint the ball with Epoxy.

Hank