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Messages - Drew

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91
Hangar Flying / LE Mods and O-320 mount
« on: September 10, 2007, 11:10:49 PM »
Don't have access to my CPs and CSA newsletters right now---but one of them has the plans for the bracket for the toyota starter.  If you get hold of the plans (1 page sheet), you can mill it----or have someone mill it for you.

92
Hangar Flying / Vortex generator installation
« on: September 09, 2007, 02:32:51 AM »
I am at COB Speicher.  Got all my gear and Army training at Ft Jackson during record breaking heat (~110F everyday---full body armor----I know---hotter in Iraq---but not nearly as muggy---I was wet for 2 weeks straight).  I found Kuwait to be extremely dry, Baghdad surprisingly humid, and Speicher not so bad (but then again, it is starting to cool).

Did you notice there is sand everywhere?  :lol:

This is my third time to Iraq (first time on the ground).  Who would have ever known that Navy guys would be on the ground in Iraq?

93
Hangar Flying / Vortilons
« on: September 06, 2007, 11:26:43 PM »
They are delineated in the CPs.  I don't have access to my CPs right now---so can't tell you which one----a fairly early one though---maybe somewhere around 30.  There is a template in there (be careful if you have a pdf of this---so that the template prints out to the right size).  It also tells you where to install on the wing.

Or you could cheat and go to Aerocad  and buy premade vortilons (if they sell them anymore) that you can almost immediately stick on with silicone.  If the area between Aerocad's vortilon does not exactly match the curvature of the wing, you can tape your wing (or whatever favorite release method you like), then tape the vortilons on with a generous amount of micro between the wing and vort.  Let it dry, pop them off, carve the base of the vort to a pleasing shape, then stick them on with silicone.

94
Hangar Flying / Vortex generator installation
« on: September 02, 2007, 10:49:22 PM »
For this type of airfoil, the 50% chord is the thickest part of the airfoil (as opposed to the quarter chord for most).  The best way to line up your line is to eyeball the end of the canard and look for the thickest portion---make a mark.  Then measure this mark from the back edge of the canard (not the elevator---but the aft edge in front of the elevator.  With an accurate measurement, you can lay out a couple of measuring marks on the "right" and "left" canard.  From here, you can snap a chalk line.  Use the template to draw the vg marks (I used a small magic marker---can't see the mark with the vg on top---even though the vg is clear.  Use silicone to attach them.

My connection in Iraq is not letting me see my homepage---but if you look on my page, you will see the layout of vgs---this will give you an idea of the layout that you need.  I had spare vgs left over when I was done.

95
Hangar Flying / crosswind controls, limits and techniques
« on: August 30, 2007, 10:43:47 AM »
Crosswind techniques are not much different for EZs.  One exception would be takeoff since you have the combination of a castering nosewheel and no prop flow over the tails.

In a stiff crosswind TO, you need to keep the nose straight but at the same time let the aircraft accelerate without you dragging the brake too much.  At the beginning of the roll, I jab the brakes as required (aircraft accels between jabs) unil the aircraft gets fast enough for rudder authority--at which time I hold enough rudder without engaging the brake.

If you are taking off from a long and wide runway (with a very stiff crosswind---beyond limits), you can line up on the downwind side, jab the brakes thru the initial takeoff roll, and let the aircraft move towards the upwind side of the runway.  This lets the aircraft get a little bit more acceleration (shorter takeoff roll) and saves the downwind brake somewhat.

96
Hangar Flying / Wheel pants venting
« on: August 29, 2007, 11:22:48 AM »
Also get hold of all the CPs.  It is crucial that the owner have the plans as well as the CPs.  I think the CPs are on line---I just use my TERF CD to look them up.

Your gear legs should have a metal sheild between the fiberglass gear leg and the axle.  This should protect the leg from the radiant heat off of the disk.  Many people also wrap the leg in this area with fiberfrax.  Make sure that the brake line is protected.

On my longez, I vented the back of the wheelpants---in otherwords, I just cut the tips off.  Then when I parked the plane nose down, all the heat went out the back.

My Cozy has a vent slots cut on top.

Bottom line---failing to protect your gear legs will get them melted.

Also---always do your flight testing with the pants off---at least the portion that involves highspeed taxi tests.

97
Hangar Flying / Successful bailouts?
« on: August 29, 2007, 11:13:31 AM »
Both the longez and cozy canopy want to lift open in flight if not locked down.  Don't ask me how I know!! :roll:

98
Hangar Flying / Looking for Help in Buying My Dream
« on: August 25, 2007, 12:35:44 AM »
As others have mentioned---don't cash out!  I am a simple military guy who has been owning a Longez and then a Cozy since my early 30s (I am 2 years older than you---wife and daughter).  My approach to life was to first fund all of my requirements
-1st: make sure that I could live in retirement (IRAs/TSP---max non tax accounts---then supplement with other retirement income until reaching comfortable levels)
-2nd: make sure education accounts appropriate for daughter
-3rd: what is left over is for everything else (1st and 2nd are untouchable).  I could get a really big house and a nice car but then there would not be anything left for a plane.  So the trick was to live below my means (smaller house, used car, etc) to reach goal

For those not used to budgeting, you would be surprise to find out how much beer, smoking, and Starbucks coffee costs you per year.

If you can't talk yourself into the smaller house, used cars, ditching the Starbucks, then partnerships are another way to go

Bottom line----my guess from your post---is that you can afford to take the plunge.  But do you have the discipline to make the numbers work out (you can't have it all----can you really choose what is important to you?)

99
Hangar Flying / GU Canard
« on: August 23, 2007, 03:36:01 AM »
Actually the canard should not stall either---it is just getting on the other side of the peak (reduced lift----pitch bob) and gaining speed before a stall.

The vgs I used were installed aft of the 50% chord line----which if I understand correctly, won't screw with when it peaks but does keep the flow attached with moisture/dirt/bug contamination.  Also, if I understand right, going forward of the 50% chord puts you in danger of doing what you said----upsetting the balance between the canard and main wing.

For what it is worth, the VGs completely tamed my GU canard----and "stall" testing went perfectly---nice pitch bobbing.

100
Hangar Flying / GU Canard
« on: August 20, 2007, 10:57:54 AM »
Once attached with RTV, they won't come off.  Not only does rain effect the GU canard, but so does bugs, dirt, and clouds.

101
Hangar Flying / Build my confidence...please!
« on: August 05, 2007, 06:02:10 PM »
The bolts that hold the wing and canard on are pretty much overkill.  People have gotten hurt (and killed) by putting the canard on and failing to fasten it.

I seem to remember a elevator flutter accident in the Banning Pass that ripped the canard off (but the bolts were probably still firmly attached-----with bulkhead material ripping away).

One of the most critical areas on the airplane is the elevator.  If you did not build the elevator, take it off and weigh it to make sure it falls within standards.

Make yourself a comprehensive test plan so that you can incrementally check things off in proper sequence with proper build up.  This would include functional checks, taxi tests, etc.

102
Hangar Flying / NACA Scoop
« on: August 05, 2007, 08:31:34 AM »
You can see my baffles on my website---and see how simple it is.  I copied my inlets from George Shell.  You can do a search for him and see some detailed photos of his baffles.  Mine are somewhat different---but it all does the same thing.  Unlike George, I had a  door in the left pressure plenum so that I could check the oil.  With my pressure plenums up from the strake and away from the fuselage, I had no probs.  Others have had good results with small Naca scoops on the top.

I still had my bottom Naca.  I walled it off and installed a bunch of round circle thingys to attach scat to.  Oil cooling came thru one of these (completely separate from engine cooling.  I also had a rectangular slip joint on this wall that gave me ram air to the carb.

103
Hangar Flying / ELT location
« on: August 05, 2007, 08:19:14 AM »
The ELT has to be placed parallel to the longitudinal axis with the arrow facing forward.  I can't see it being placed on the back of the front seat unless you have a bracket to make it lay flat---then it would be kind of sticking out weird.

104
Hangar Flying / NACA Scoop
« on: August 03, 2007, 04:00:23 PM »
Just one more opinion.  I have both updrafted (according to plans using a NACA scoop) and downdrafted a Longez.

The mods to the cowl for downdraft were not a big deal.  The baffle job for downdraft was muuuuuccccccchhhhh easier and cleaner than the updraft.  I had lots of problems cooling my O235 in a updraft configuration.  I had no problems with an O320 in a downdraft config.

For updraft---all the stuff you have to baffle around  (pipes, alternator, starter, breather (for some))----as well as getting a good seal with the lower cowl-------all go away with downdraft cooling.

Good luck bending lots of metal and trying to seal off your updraft.

BTW, I still run updraft on my Cozy with good results---I just hate all the stuff the aft baffle has to get around.

105
Hangar Flying / ASI colour markings
« on: August 03, 2007, 03:52:37 PM »
Go to 3000 ft in the clean configuration and slow down until the nose decides to fall----use that speed.

Then do the same with the gear and brake down.

Don't mark the flap configuration.  

The airspeed indicator should be marked for your airplane.

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