Hi Rob, Can you explain the difference in TBO between the BT and T blades ? I thought both were the same. Best regards Ian Williams
Sent from my iPad > On 22/07/2017, at 7:51 PM, Rob Thompson <[email protected]> wrote: > > I just heard that GFA has adopted the CASA rules on overhauling propellers. > See http://services.casa.gov.au/airworth/airwd/ADfiles/equip/prop/PROP-001.pdf > > > This means that as soon as it is documented in the system there is no longer > a calendar time for overhauls. > > Ian McPhee has been dealing with Prop Care (www.propcare.com.au) in Brisbane > for Hoffman overhauls and hopefully they will be soon doing work on Hoffman > props. > > We are continuing to have a nightmare run with Eric at Australian Air Props > at Bankstown. 3 times in the past 2 years our prop has come back to us with > problems. Once WAY out of balance then next time set much too coarse and only > pulling 2000 at full power. Then recently he sent it back to us with the > counterweights set incorrectly and the rpm was fluctuating on run up and > early take off roll. > > Add to that he charges a fortune because he knows that the only other option > in Australia is to send the props to Germany. Up near $4000 now for about > 10-15 hours work. > > Fingers crossed that the Brisbane mob will be able to do them. > > Rob Thompson > 0429 493 828 > > > > > > From: [email protected] <[email protected]> on behalf of > Michael Stockhill <[email protected]> > Sent: Monday, 17 July 2017 4:23 AM > To: [email protected]; Laurie Hoffman > Subject: Re: [DOG mailing list] H36 Ignition Switch (and brakes) > > For what it is worth, the mag switches on my Aztec with similar magnetos are > rated at 6 amps 125V a.c./dc. The p lead grounds the primary coil. I found > one source that says the primary coil puts out about 150 volts. The secondary > coil puts out 10-15000 Volts. 40 amp or even 20 amp rated switch looks like > overkill for whatever reason. Maybe consevative because we only get one of > them. > > Michael > >> On Jul 15, 2017 1:29 AM, "Laurie Hoffman via dog" >> <[email protected]> wrote: >> Hi Tom and Mike, >> >> Rob and I have the wreck of an H36 from which we have salvaged many parts >> for our functioning H36, especially the L2400 which we had top overhauled. >> >> Tom, I gritted my teeth and dived back into the wreck to recover the >> ignition switch and a panel switch. The wreck is already well dismantled >> however I still had a cow of a job getting access to the switches and >> removing these. I dread to think how much time it would take to install a >> new switch in the original position in a complete panel. My strong >> recommendation is that if you have an ignition switch failure seriously >> consider installing a new switch in another location on the panel, simply >> reroute the wiring from the old to the new and then cover up the old switch >> and placard the new. >> >> Although psychically the switch toggles and bodies appear the same, the >> switches have a very different rating. The panel switch is rated 15A while >> the ignition switch is rated 40A! >> >> The link that you posted to a new switch I just noticed is only rated 20A. >> Maybe something like this one Tom.... >> Longacre 45423 40 Amp Weatherproof Toggle switch #1731 | eBay >> >> $ 22.95 >> >> Longacre 45423 40 Amp Weatherproof Toggle switch #1731 | eBay >> Longacre 45423 40 Amp Weatherproof Toggle switch #1731 in | eBay! >> >> >> In Oz I have found Narva (driving light manufacturers) switches which look >> suitable. Heavy duty and this one rated at 50A for 12v. >> >> Heavy Duty - Products - Narva >> >> Heavy Duty - Products - Narva >> >> >> The wreck is a Mk2 by the way while our operational H36 is a Mk1 so if >> anyone needs a good Mk2 wing or two, let us know! >> >> >> >> Re hydraulic fluid, we use only OM16 which I gather is equivalent to 5606. >> >> Best Regards >> Laurie >> >> >> >> >> From: Michael Stockhill <[email protected]> >> To: [email protected] >> Sent: Saturday, 15 July 2017, 10:13 >> Subject: Re: [DOG mailing list] H36 Ignition Switch (and brakes) >> >> Hi Tom et al >> >> I think I found that the MS O rings are okay. Mine were fine through two >> rebuilds (preventative maintenance each time I put on new tires) over 16 >> years. >> >> Mike >> >> >> On Jul 14, 2017 10:01 AM, "Tom Preisser" <[email protected]> wrote: >> Hi Laurie, >> >> I have what I believe to be an ignition switch in my spares. Can't be >> positive without digging behind the panel to look at my installed switch, >> but you can check your removed switch against it. The spec is MS 35058-22 >> http://www.bandc.aero/ toggleswitch-MS35058-22.aspx >> >> And I think it could be a different spec to the other fuel pump, etc >> switches (beefier), given that it has a separate entry than the 15A switches >> in the old H36 parts manual (with part numbers no longer valid for >> Diamond)... >> >> BTW on brakes (and thanks Mike for your advice)... just now installing a new >> caliper piston which makes the O ring fit much better in the cylinder (seems >> I had to take off too much corroded material from the groove of the original >> installed one, so it no longer sealed tightly)... >> >> For those of you running DOT3 fluid, I have obtained some EPDM O-rings to >> use rather than the BNR (nitrile) MS-28775-218 O-rings supplied to me by >> Diamond (which they may have sent probably because the HK36 and DA20 use >> 5606 aviation brake fluid). See this RAS thread for the details on why BNR >> is not suitable for DOT3... >> https://groups.google.com/ forum/#!topic/rec.aviation. soaring/4MiwHrkryFg >> >> And I talked to a lady who has worked at Cleveland Brakes for decades, and >> she gasped!! when I said that Hoffmann used DOT3. She says Cleveland only >> recommends aviation brake fluid - but I'm sticking with DOT3 as per the US >> type certificate! >> >> Cheers, >> >> Tom >> >> >> On Thu, Jul 13, 2017 at 7:26 PM, Laurie Hoffman via dog >> <[email protected]> wrote: >> Hi All, >> >> After extensive investigation into intermittent electrical problems >> eventually developing into a situation where the motor had to be shut down >> in flight due to rough running, it appears that the culprit is the ignition >> switch. >> >> Physically, the switch appears identical to the other original panel toggle >> switches operating fuel pump, avionics, strobe etc. >> >> Does anyone know if they are the same switch and also is there anyone out >> there in DOG land who might have specs for the switches? >> >> Best Regards >> Laurie >> >> >> >> >> >> From: Greg Wilson <[email protected]> >> To: [email protected] >> Sent: Sunday, 18 June 2017, 8:10 >> Subject: [DOG mailing list] Easy fit ADSB >> >> These are a very easy install and cheap too. >> >> https://www.recreationalflying .com/threads/wow-these-are-goo >> d-looking-gadjets.161803/ >> >> >> Greg Wilson >> >> >> >> >> >> >> >> >> >> ------------------------------ ------------------------------ --------- >> You are subscribed to the Dimona Owners Group mailing list. >> To unsubscribe, send email to: dog-unsubscribe@lists. riverland.net.au >> >>
