Yak-List Digest Archive

Mon 05/30/11


Total Messages Posted: 10



Today's Message Index:
----------------------
 
     1. 12:40 AM - ditching a low wing radial (Elmar Hegenauer)
     2. 05:02 AM - Re: ditching a low wing radial (n395v)
     3. 05:48 AM - Ex PLAAF Helmets on ebay (mnorman)
     4. 07:41 AM - Re: ditching a low wing radial (bill wade)
     5. 08:41 AM - Re: ditching a low wing radial (Walter Lannon)
     6. 09:16 AM - Re: Whirl Wind Prop (Warren Hill)
     7. 10:00 AM - Re: Ex PLAAF Helmets on ebay (Kurt Howerton)
     8. 01:39 PM - Re: ditching a low wing radial (barryhancock)
     9. 02:09 PM - Re: Ex PLAAF Helmets on ebay (Harv)
    10. 11:14 PM - Re: ditching a low wing radial (Elmar)
 
 
 


Message 1


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    Time: 12:40:03 AM PST US
    Subject: ditching a low wing radial
    From: Elmar Hegenauer <elmar.h@shaw.ca>
    Did anybody ever hear of a successful ditching a T-28, T-6, YAK or other similar aircraft without flipping over and no harm caused to the crew? cheers Elmar


    Message 2


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    Time: 05:02:44 AM PST US
    Subject: Re: ditching a low wing radial
    From: "n395v" <Bearcat@bearcataviation.com>
    Several examples on "The Military Channel" of WWII newsreels showing successful ditchings of Grumman Wildcats/Hellcats that remain upright. -------- Milt Read this topic online here: http://forums.matronics.com/viewtopic.php?p=341448#341448


    Message 3


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    Time: 05:48:32 AM PST US
    Subject: Ex PLAAF Helmets on ebay
    From: "mnorman" <mark@albanyproperty.com.au>
    Hi All, I've found someone on Ebay selling original ex PLAAF flight helmets(TK2A). Does anyone know if the avionics in them can be made to work with a civilian style radio/intercom? Any info will be appreciated. Thanks Mark Read this topic online here: http://forums.matronics.com/viewtopic.php?p=341456#341456


    Message 4


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    Time: 07:41:10 AM PST US
    From: bill wade <bwade154@yahoo.com>
    Subject: Re: ditching a low wing radial
    There was a T-28 that went in the water in Florida this winter it had engin e =0Aproblems and couldn't make the runway I'd say about 500' short it did however =0Aflip over but the pilot and passenger got out without injury. It was on the news =0Awith video-should be able to find it on you-tube.=0A =0ABill Wade-=0A=0A=0A=0A=0A________________________________=0AFrom: Elma r Hegenauer <elmar.h@shaw.ca>=0ATo: Yak-List@matronics.com=0ASent: Mon, May 30, 2011 3:36:51 AM=0ASubject: Yak-List: ditching a low wing radial=0A=0A- d anybody ever hear of a successful ditching=0Aa T-28, T-6, YAK or other si milar aircraft=0Awithout flipping over and no harm caused to=0Athe crew?=0A ====================


    Message 5


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    Time: 08:41:02 AM PST US
    From: Walter Lannon <wlannon@persona.ca>
    Subject: Re: ditching a low wing radial
    Yes, numerous occasions over the years. One very close to your home Elmar ( no details on the list - call me). Usually always succesful as long as the gear is UP. Walt ----- Original Message ----- From: "Elmar Hegenauer" <elmar.h@shaw.ca> Sent: Monday, May 30, 2011 12:36 AM Subject: Yak-List: ditching a low wing radial > > > Did anybody ever hear of a successful ditching > a T-28, T-6, YAK or other similar aircraft > without flipping over and no harm caused to > the crew? > > cheers > > Elmar > > >


    Message 6


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    Time: 09:16:35 AM PST US
    Subject: Re: Whirl Wind Prop
    From: Warren Hill <k7wx@earthlink.net>
    Gents, Now have about 20 hours on the WhirlWind V530-WT composite blades on a zero time M-14P engine. Coming from the Housai-6 and those Chinese metal blades, this has been major step up. Here is some of my experience. This is a big prop. 8 feet, 2.5 inches in length, but relatively light weight. Blade angle is critical. At 21.5 degrees, was only able to get 84% RPM on takeoff. At 17.5 degrees it gave 98% static RPM and 101% on takeoff. It was interesting to chart the increase in the max static RPM with each small change in the blade angle. Almost linear. At 17.5 degrees, full aft on the prop and throttle at 120 knots, it will go down to 56%. The blade angle is easy to adjust with the tool that comes from WhirlWind and a digital inclinometer, such as the Sears Craftsman Digital Torpedo Level. There is also a very clever iPhone 4 app that does the same thing called TiltMeter, which is equally accurate to within 0.1 degree and a lot less expensive. As expected, this is an amazing climb prop. In formation, I keep the prop between 72% and 78%, depending on how responsive I want the CJ to be. A few weeks ago on the way to a fly-in, did a side-by-side comparison with Munchie who has a CJ with the new M-14P Inc. V530C composite prop from Jill Gernetzke. From cruse power to everything forward, we both accelerated quickly, but Scott was able to pull away from me. The initial impression was that Scott's CJ with Jill's prop was also a little more responsive. At cruise, his power settings were also a little lower than mine for the same airspeed. If I had to do this again, I would seriously consider Jill's composite prop design, which is about 4 inches larger than the standard V-530 blades and 1/2 inch shorter than the Whirlwind V530-WT. I'll try to record some typical power settings at various airspeeds on the next long cross country flight. Warren N464TW On Jan 18, 2011, at 2:37 AM, ssssskippy wrote: > > Just an other question: > > Did you notice a real improvement of the cruising speed? any numbers? > > Thanks > > Olivier > > -----Message d'origine----- > De : owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] De la part de Warren Hill > Envoy : mardi 18 janvier 2011 03:13 > : yak-list@matronics.com > Objet : Re: Yak-List: Whirl Wind Prop > > Oliver, > > Flew my CJ-6A with the new Whirl Wind V530-WT composite blades for the first > time on Saturday. Some observations... > > Performance is very good in the climb. > > Not a surprise, there is drag at reduced power / RPM. Landing required > some power to maintain airspeed. No problem, just different. > > May require some hub changes. When Bill Blackwell did the first test > flight last week, RPMs jumped up past 160 KIAS. I noticed the same. Jill and > Carl will chase this for me. > > Initial experience is very positive. Here is a picture with the airplane now > back in my hanger at FFZ. > > Warren Hill > N464TW > > > > > > > >


    Message 7


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    Time: 10:00:32 AM PST US
    Subject: Re: Ex PLAAF Helmets on ebay
    From: Kurt Howerton <grabstein@gmail.com>
    I have two that we sent to Oregon Aero to have US Civilian electronics installed. They work beautifully. ________________________________________ Kurt "It" Howerton N923YK 530-312-1299 http://cj6.scitechsys.com http://www.baybombersquadron.com On Mon, May 30, 2011 at 5:46 AM, mnorman <mark@albanyproperty.com.au> wrote: > > Hi All, > > I've found someone on Ebay selling original ex PLAAF flight helmets(TK2A). > Does anyone know if the avionics in them can be made to work with a > civilian style radio/intercom? > > Any info will be appreciated. > > Thanks > > Mark > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=341456#341456 > >


    Message 8


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    Time: 01:39:07 PM PST US
    Subject: Re: ditching a low wing radial
    From: "barryhancock" <bhancock@worldwidewarbirds.com>
    If you look at that T-28 crash it has the gear down and full flaps deployed.....and doesn't make the runway. Like Wayne Handley told me during my time with him last fall, "you're only as good as you last practice was recent...if you're lucky." In other words, don't expect to survive an engine failure unless you practice them. Doug Sapp offered up several hundred dollars of gas money for people that would go out and practice engine failures with an IP in the back. There were no takers....amazing. I fear we don't rehearse our EP's often enough, either by chair flying, or real flying. Spot landing a powerless airplane is a fun way to spend a few minutes of flying....and may just save your life. Happy Flying, Barry -------- Barry Hancock Worldwide Warbirds, Inc. (909) 606-4444 www.worldwidewarbirds.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=341512#341512


    Message 9


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    Time: 02:09:23 PM PST US
    Subject: Re: Ex PLAAF Helmets on ebay
    From: "Harv" <martin.harvey@kbr.com>
    Hi My experience is the same as Kurt but I converted them myself. All you need to do is purchase the Oregon Aero boom round mount electret mic, GA dual plug harness and a pair of gel ear seals. The stock PLA helmet speakers (they come still fitted inside the helmets) work just fine. Rgs Harv :D Read this topic online here: http://forums.matronics.com/viewtopic.php?p=341514#341514


    Message 10


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    Time: 11:14:54 PM PST US
    Subject: Re: ditching a low wing radial
    From: Elmar <elmar.h@shaw.ca>
    Thank you everyone who has responded to my posting, very much appreciated. I live on Vancouver Island and we have nothing but big rocks, tall conifers and lots of water. Forced landings around here are a kind of Russian roulette. The other day I had the pleasure to meet a radial engine pilot with 26,000+ hours (who owns a very nice Nanchang as well). As far as I've understood him, I would not have the best of chances to survive ditching a CJ due the NACA cowling and the cockpit/canopy design, he rather would try to put it down in the trees. Those are merrymaking and backslapping prospects, eh? cheers Elmar




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