Van's Air Force
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VFR vs IFR Static Leak Down Rates
- Thread starter Piper J3
- Start date
Bayou Bert
Well Known Member
The Real Test?
Walt, that's the real test?
Pump system up to 1000' and time leak down,
and it has to be no more than 100'/min?
Thanks
Walt, that's the real test?
Pump system up to 1000' and time leak down,
and it has to be no more than 100'/min?
Thanks
Walt
Well Known Member
That is correct. (1000ft above current elevation)
Piper J3
Well Known Member
So let me ask you this... If my static system leaks more than 100'/min is it OK to schedule a VFR transponder certification test?
RV3bpilot
Well Known Member
I would not accept any leakage, but that's me. I found that my Vertical speed indicator glass was leaking so I put a thin coat of epoxy around the edges of the glass and so far all is good.
Then I found that air was passing from the static side to the pitot side of the air speed indicator, {not fixable and it was new} so I purchased a new one.
Then I found some plastic fittings leaking...Ahhhhhhh
Yes very time consuming to get it right...
Be patient you will get it right..
Then I found that air was passing from the static side to the pitot side of the air speed indicator, {not fixable and it was new} so I purchased a new one.
Then I found some plastic fittings leaking...Ahhhhhhh
Yes very time consuming to get it right...
Be patient you will get it right..
I don't think Mode C transponder test has any thing to do with static leak test. But finding a leak might not be that difficult and worth fixing.
Walt
Well Known Member
Yes, there is no requirement to test this for a 'VFR' transponder check. Would it be a good idea to fix it... yes, but don't let that stop you from getting the xpdr checked.
