Bob Hartunian's Discussions (236)

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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

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