Preparation

Tailwheel Linkage

Earlier today I went flying.  For one of the few times this year, the temperatures were down in the single digits.  After leaving the Cherokee plugged in for hours to pre-heat the motor and taping off the oil cooler inlet, I jumped in and fired up the plane.  I was suprised that the thing fired off after just a couple of blades.  Anyway, with the temperatures as cold as they were, my little Cherokee 140 got the best climb rates I have seen yet.  With me and about 25 gallons of fuel, I was seeing climb rates between 1000-1200 fpm.  I was absolutely thrilled with the performance.  Then I got to thinking that this is still only about 1/2 of what the RV-7 will be able to do.  Even though I was thrilled with the Cherokee's performance in these temperatures, it started to get me motivated to get back and work on the RV.  Anyway, enough babbling about the Cherokee.

I am in the process of wrapping up my wing kit and my attention is wandering to the next phase of the project.  One thing that has been in the back of my mind is what I was going to use for a tail wheel linkage.  The thought of using the "screen door springs" was never all that exciting to me.  I wanted something a little nicer and that is the joy of  experimental aircraft.  I can put on whatever I want.  Anyway, I was always interested in the tail wheel linkage that Terry Jantzi manufactured and then one day on Doug Reeve's site (http://www.vansairforce.net/), I came across an add for Rivethead Aero and they were manufacturing a fabulous looking tail wheel linkage.  I ended up buying the tail wheel linkage from Rivethead Aero over Terry Jantzi's model with the following considerations:

  • Rivethead Aero unit is fully sealed.  No disassembly is required and it is environmentally sealed.  If for any reason it fails, Rivethead Aero will replace the unit.
  • It is Nickel plated and is a thing of beauty.  The form and finish of the unit is fabulous.
  • Rivethead Aero's was more expensive and I always like the things that are the most expensive.  

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Just another angle.  This should really dress up the tail wheel. 

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This thing is supposed to be environmentally sealed.  I sure wish they would have sent the drawings of how this thing is put together.

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Just a pict of the other end.

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I also got their linkage arm so it matched the tail wheel linkage.  I is also nickel plated and looks great.

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If you are interested in checking out Rivethead Aero, their website is at:

http://www.rivethead-aero.com/

I also recommend checking into Terry Jantzi's tail wheel linkage at his web address (I believe that Wayne Hadath is now making the RV/Steering Link):

http://www.justplaneworks.com/

I am getting into the fuselage frame of mind.  I have barely looked at the parts in the crate and I am starting to think about interior, the radio stack, etc.  I can already see the $$$'s flowing out of my bank account at an alarming rate.

More Flight Instruments Arrive

Today, some of my "steam gauges" came from Van's.  I am going with conventional gauges on my instrument panel and I am trying to pay for these as I go.  I always like it when UPS or Fedex leaves me a package in the garage...  Just like Christmas for the last 5 months.Fuselage06

Each instrument was individually packaged, wrapped in bubble wrap and in a sealed bag with desiccant.  While I was ordering gauges, I also bought some nut rings for mounting the instruments to the panel.

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Here is my instrument line-up for instruments received today.  Add a turn coordinator (received earlier) and I am starting to have an instrument panel.  These instruments are very nice for the money.  I hope that they work as good as they look.

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For my airspeed indicator, I went with a True Airspeed Indicator.  Let me show you how ignorant I am on this instrument.  I went with a true airspeed indicator so that the white scale on the lower left of the instrument will show you a corrected airspeed based on your altitude and the outside temperature.  OKAY>>>  Turn the dial>>>  The "P. ALT" (pressure altitude) changes and the white scale below changes.  Well, the dang thing says that you have to enter your temperature too.  HUH?   If I understand this correctly, you turn the dial to put your "P. ALT" to the temperature (that is in centigrade>>  Who uses that???).  So looking at the gauge picture below, say I am at 6000 feet indicated (when altimeter is set to 29.92 inches of mercury) and the temperature is 86 degrees Fahrenheit outside the aircraft (which corresponds to +30 degrees centigrade), my true airspeed would be as indicated on the white scale at the bottom.  You can see that there is about a 20 knot error in the indicated airspeed.  The Cessna 150 I am learning in does not have anything this fancy....  Where's my GPS????

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All gauges received from Van's on this order are Falcon Gauges.  They came with certificates of calibration.  According to all of my calibration sheets, all of these calibrated to exacting tolerances.  SWEET!!!!  Be advised, after I received these gauges, I saw some bad press on other builders web site's for Van's gauges.  I look at it this way...  I spent around $500 for these three instruments.  When I went to Chief Aircraft, they wanted that much money just for the altimeter.  Don't get me wrong, these are important instruments, but I don't plan on an IFR cert and I figure if they give me problems, I can always replace them with higher quality instruments when my pocket book recovers.

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Your "run of the mill" vertical speed indicator.

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And finally for today's toys, your run of the mill altimeter calibrated in inches of Mercury (inHg).

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