Bob Hartunian's Discussions (229)

View

Discussions Replied To (26)	Replies	Latest Activity
"If you wrap/insulate exhaust pipes to retain radiant heat in pipes, the pipes will r…" Bob Hartunian replied Jul 5, 2020 to Exhaust pipe wrap	14	Nov 19, 2021 Reply by Neil Cooper
"Mogas is preferred fuel for 912 and without ethanol is better. I have 1200 hrs on en…" Bob Hartunian replied Feb 13, 2019 to Fuel	5	Feb 13, 2019 Reply by Bob Hartunian
"I'd remove from mold and have easier access to all surfaces for priming. Then attach…" Bob Hartunian replied Feb 5, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"Should be able to layup plies within ~1 hr if plies are precut. As you begin to appl…" Bob Hartunian replied Jan 22, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"-I don't see need for notched squeegee.-A roller and pan might make application easi…" Bob Hartunian replied Jan 21, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"A pair of metal snips will cut glass easily. Take a paint brush and cut off half of…" Bob Hartunian replied Jan 21, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"Substituting carbon for aluminum without redesigning the part is called "black alumi…" Bob Hartunian replied Jan 17, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"I think I've said enough about material selection. For a cowl with low loads where s…" Bob Hartunian replied Jan 16, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"Vinylesters have lower Tg (softening temp) than epoxies so I would stay with epoxy a…" Bob Hartunian replied Jan 16, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian
"Don't forget that your male mold makes the IML (inner mold line) of the cowl and wil…" Bob Hartunian replied Jan 15, 2018 to Engine Cowl and Mold construction	31	Feb 5, 2018 Reply by Bob Hartunian

RSS

Welcome to
Zenith Aircraft Builders and Flyers

Sign Up
or Sign In

Or sign in with:

New from Zenith:

Zenith Planes For Sale

Classified listing for buying or selling your Zenith building or flying related stuff...

Custom Instrument Panels
for your Zenith:

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, Dynon and Garmin avionics, and more.

Zenith Homecoming Tee:

Zenair Floats

Flying On Your Own Wings:
A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

Aircraft Insurance:

West Coast USA:

Pro Builder Assistance:

Transition training:

Lavion Aero

K&S Aviation Services

Aircraft Spruce & Specialty for all your building and pilot supplies!

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

Badges | Report an Issue | Terms of Service

Exlusive online community for active builders and pilots of Zenith Aircraft kits (Chris Heintz / Zenair light airplane designs).

Zenith Aircraft Builders and Flyers

Bob Hartunian's Discussions (229)

"If you wrap/insulate exhaust pipes to retain radiant heat in pipes, the pipes will r…"

"Mogas is preferred fuel for 912 and without ethanol is better. I have 1200 hrs on en…"

"I'd remove from mold and have easier access to all surfaces for priming. Then attach…"

"Should be able to layup plies within ~1 hr if plies are precut. As you begin to appl…"

"-I don't see need for notched squeegee.-A roller and pan might make application easi…"

"A pair of metal snips will cut glass easily. Take a paint brush and cut off half of…"

"Substituting carbon for aluminum without redesigning the part is called "black alumi…"

"I think I've said enough about material selection. For a cowl with low loads where s…"

"Vinylesters have lower Tg (softening temp) than epoxies so I would stay with epoxy a…"

"Don't forget that your male mold makes the IML (inner mold line) of the cowl and wil…"

New from Zenith:

Builder & Pilot Supplies: