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jwd3ca(at)gmail.com
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 Posted: Tue Mar 20, 2012 4:30 pm Post subject: Sun 'n' Fun? |
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Greetings Gear Heads ;')
Headed to Lakeland for the week (next), just wondering who on these
lists is also attending. It would be great to put faces to some of the
familiar names...
Find me in/near the white VW Eurovan pop-top van with a large Canadian
flag. The big black dog is very friendly ;')
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dwwilt
Joined: 06 Dec 2010
Posts: 192
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| Posted: Wed Mar 21, 2012 4:32 am Post subject: Sun 'n' Fun? |
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I am driving over for the day on Tuesday (shopping trip) and flying over for the weekend on Friday. Over the weekend, I'll be running all over the place and will likely be around the Lightning tent a lot of the time. Hopefully, I'll see you there.
Dennis
N616DW (Arion Lightning S/N 132)
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Dennis |
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AirEupora
Joined: 01 Nov 2009
Posts: 186
Location: Dixon, CA
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| Posted: Fri Mar 23, 2012 6:13 pm Post subject: Re: Sun 'n' Fun? |
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If it's not to late and you get a change would you check out the AP420 prop for the Jabiru. I know that one is installed on an Europa with a Jabiru 3300.
Like to hear what the numbers are. The one number that is hard to take is the price: $7000.00
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richardcoo
Joined: 24 Mar 2012
Posts: 10
Location: Wellington, New Zealand
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| Posted: Sun Mar 25, 2012 11:38 am Post subject: Re: Sun 'n' Fun? |
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There's a good deal of noise and interest re variable pitch or constant speed propeller options for the Jab' 3300. I'm considering a Lightning build myself over the southern hemisphere winter and spring months and this phase has caused me to spend more than a few hours researching options. From what I've researched, here's options so far:
Ameri-Tech - "Whirl Wind" series (2 blade - no pricing offered)
Airmaster - model AP420 (US$7,000) made in NZ
MT Propeller - model MTV-1 (EU8,200), MTV-7 (EU9,700)
Woodcomp - series SR3000, models 3B(EU5,145) and 3J (EU4,845)
Pricing all ex-works and subject to currency fluctuation and individual quotations.
All are electrically manipulated variants as best I can determine, and engage some form of controller in the instrument panel to control the propeller's angle of incidence to the free airstream ahead of the aircraft.
There's still work to be done, as Jabiru in Bundaberg, QLD (Australia) appear to have little research into variable incidence or constant speed propellers. As such the safest route is to progress with the engine manufacturers recommendation, or an option with considerable time in service of the engine as the existing Lightning options have.
That said, however and in the spirit of experimental aviation, there's basis in my opinion to consider a variable pitch or constant speed option. However caution and a well thought out strategy and testing plan as part of the aircraft's initial testing or in the case of a retrofit, separate testing is warranted to gather data, familiarise the pilot with operating techniques and demonstrate the acceptability or non-conformance of a propeller option. Maybe one of the manufacturers will get behind a well developed testing program to validate their variant on a Lightning?
In summary, proceed with caution. Utilise the resources available to you in the form of DAR, engineering, expertise, additional research and safe flying.
Kind Regards
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