I don't pressurize until I get up to 6-8,000 ft. This keeps my cabin a bit cooler and comfortable at low altitude and doesn't steal power when it's needed most ie on takeoff and early climb out. Do others do it differently?
David Weinsweig N750DW Propjet On take off the other day I was up to 2 Psid by the time I went wheels up. That was with the gold box 95% closed. Does anyone happen to have a dukes manual?
Typing and grammar errors courtesy of Siri and the iPhone.
On Mar 13, 2013, at 14:14, Colyn Case <colyncase@earthlink.net> wrote:
> If you have a vacuum system, you can hook that up.
> If you don't, you can buy a small pump and hook that up. I haven't done the latter but I've heard the door seal pump works okay for this application.
>
> Using that main vac pump almost completely eliminates the cabin pressure increase at takeoff.
>
> On Mar 13, 2013, at 1:21 PM, Todd Long wrote:
>
> How do most of you operate the pressurization system to avoid the major bumps at takeoff? My vacuum line was capped.
>
> Typing and grammar errors courtesy of Siri and the iPhone.
>
> On Mar 13, 2013, at 10:56, Paul Miller <pjdmiller@gmail.com> wrote:
>
>> Autozone, lots of smaller sizes for vacuum hose by the foot.
>> On 2013-03-13, at 10:51 AM, Colyn Case <colyncase@earthlink.net> wrote:
>>
>>> I'm looking for a minimum thickness vacuum hose just to hold the dukes pressurization valve open on takeoff. Right now I have a 1/4" i.d. .64" o.d. big fat rubber line. I don't see anything on McMaster Carr that is thinner wall. But given it probably needs to handle maybe 10 psi of vacuum, the big fat rubber hoses seem like overkill.
>>
>>
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