Have any Dimona operators found that their bird diverges to the right when rotating for takeoff? Mine consistently does that as the tailwheel lifts off. After 400 or so flights I think I am past adding right rudder for a prop that turns contrary to all the taildraggers I have flown.
Michael Stockhill Polson MT On Jul 22, 2017 3:23 PM, "Laurie Hoffman via dog" < dog@lists.riverland.net.au> wrote: > Rob you forgot to mention that on two of those occasions when we had prop > work done, that there were other faults also. > The blades looked like they had been refinished by someone who had never > spray painted before. At least once there was an issue with seal > installation with grease being sprayed everywhere on use. > Laurie > > Sent from Yahoo7 Mail on Android > <https://overview.mail.yahoo.com/mobile/?.src=Android> > > On Sun, 23 Jul, 2017 at 6:16 am, Ian Williams > <ag...@xtra.co.nz> wrote: > 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 <post...@hotmail.com> 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:* dog@lists.riverland.net.au <dog@lists.riverland.net.au> on behalf > of Michael Stockhill <sto...@gmail.com> > *Sent:* Monday, 17 July 2017 4:23 AM > *To:* dog@lists.riverland.net.au; 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" < > dog@lists.riverland.net.au> 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 > <http://www.ebay.com.au/itm/Longacre-45423-40-Amp-Weatherproof-Toggle-switch-1731-/272686767789?epid=708201179&hash=item3f7d65dead:g:4QcAAOSw~FJZJvde> > > $ 22.95 > Longacre 45423 40 Amp Weatherproof Toggle switch #1731 | eBay > Longacre 45423 40 Amp Weatherproof Toggle switch #1731 in | eBay! > > <http://www.ebay.com.au/itm/Longacre-45423-40-Amp-Weatherproof-Toggle-switch-1731-/272686767789?epid=708201179&hash=item3f7d65dead:g:4QcAAOSw~FJZJvde> > > > 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 > <http://www.narva.com.au/products/browse/heavy-duty-2> > > Heavy Duty - Products - Narva > <http://www.narva.com.au/products/browse/heavy-duty-2> > > > 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 <sto...@gmail.com> > *To:* dog@lists.riverland.net.au > *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" <t...@ecoflight.com> 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 > <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 > <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 < > dog@lists.riverland.net.au> 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 <g...@gregwilson.id.au> > *To:* dog@lists.riverland.net.au > *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/ > <https://www.recreationalflying.com/threads/wow-these-are-good-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 > <dog-unsubscr...@lists.riverland.net.au> > > > >
