Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - Dave in Eugene

Pages: 1 2 [3] 4 5 ... 13
31
Hangar Flying / Re: Synthetic oil ??
« on: January 19, 2009, 06:57:23 PM »
Hey Joe,

Good to hear ya.

I am thinking about going to a multi visc oil for the 0-235L2c. Would you recommend the same as you are using for the lyc?

thanks,

Dave

32
Hangar Flying / Re: Hi new to the forum
« on: October 21, 2008, 05:14:43 AM »
This is all good advice... A Long EZ is a lifestyle... get ready...The other owners are the dividend to the investment...exceptional brain trust....

I have flown a lot of a/c...I shake my head almost every time I fly and say "what a plane!" smooth, stable and effecient. I thought I would  need pods but I don't...My wife and I regularly fly with a tent and all the gear we need for self suffeciency...you have to learn to break down your gear and tuck it hear and there...but it all works great.

Most important I would say is buy the best one you can find...I always buy cheap then pay double over the next few years making it excellent...

I do have an 0-235 and it is amazing for the hp. Everyone says the 0-320 is the way to go ...they are probably right...I can cruise at 150knts at less than 6.5 gph.

Have fun. Stay safe ...they are great a/c

Dave

33
Hangar Flying / Re: How hard is it to install an auto-pilot?
« on: October 09, 2008, 09:57:16 PM »
http://www.trioavionics.com/

thanks...more thoughts?

Dave

34
Hangar Flying / Re: Is it a must to hangar LONG EZ?
« on: October 05, 2008, 04:40:19 PM »
Can't imagine leaving mine out...too many folks would finger it... it is a magnet for interest.... Dave

35
Hangar Flying / electric aircraft
« on: October 05, 2008, 08:57:02 AM »
this is going to be great!

http://electraflyer.com/index.html

Dave

36
Hangar Flying / How hard is it to install an auto-pilot?
« on: September 28, 2008, 08:24:44 PM »
I would like to make the improvement...I would love to hear thoughts about installations and which brand is the best....hard to beat Dynon?...don't know.

Thanks,

Dave

37
Hangar Flying / Solar Aircraft sets record
« on: August 24, 2008, 11:47:43 PM »
How to beat the high price of Avgas

http://news.bbc.co.uk/2/hi/science/nature/7577493.stm

    *
    * On This Day
    * Editors' Blog
    * BBC World Service

Site Version

    * UK Version
    * International Version
    * About the versions

   
Page last updated at 04:21 GMT, Sunday, 24 August 2008 05:21 UK
E-mail this to a friend    Printable version
Solar plane makes record flight
By Jonathan Amos
Science reporter, BBC News


Solar plane's 3 day flight

A UK-built solar-powered plane has set an unofficial world endurance record for a flight by an unmanned aircraft.

The Zephyr-6, as it is known, stayed aloft for more than three days, running through the night on batteries it had recharged in sunlight.

The flight was a demonstration for the US military, which is looking for new types of technology to support its troops on the ground.

Craft like Zephyr might make ideal platforms for reconnaissance.

They could also be used to relay battlefield communications.

Chris Kelleher, from UK defence and research firm QinetiQ, said Unmanned Aerial Vehicles (UAVs) offer advantages over traditional aircraft and even satellites.

"The principal advantage is persistence - that you would be there all the time," he told BBC News. "A satellite goes over the same part of the Earth twice a day - and one of those is at night - so it's only really getting a snapshot of activity. Zephyr would be watching all day."

Deployment close

The latest flight was conducted at the US Army's Yuma Proving Ground in Arizona.

The Zephyr flew non-stop for 82 hours, 37 minutes.
Altitude infographic NOT TO SCALE (BBC)

That time beats the current official world record for unmanned flight set by the US robot plane Global Hawk - of 30 hours, 24 minutes - and even Zephyr's own previous best of 54 hours achieved last year.

However, the Yuma mark remains "unofficial" because QinetiQ did not involve the FAI (Federation Aeronautique Internationale), the world air sports federation, which sanctions all record attempts.

The US Department of Defense funded the demonstration flight under its Joint Capability Technology Demonstration (JCTD) programme.

This programme is designed to advance the technologies American commanders would most like to see in the field.

"We think Zephyr is very close to an operational system - within the next two years is what we're aiming for," Mr Kelleher said. "We have one more step of improvements; we trying to design a robust and reliable system that will really sit up there for months; and we want to push the performance."

Energy density

The trial, which took place between 28 and 31 July, also included the participation of the UK Ministry of Defence.

The 30kg Zephyr was guided by remote control to an operating altitude in excess of 18km (60,000ft), and then flown on autopilot and via satellite communication.

It tested a communications payload weighing approximately 2kg.
Zephyr (QinetiQ)
Zephyr should be in commanders' hands within two years

At first sight, the propeller-driven Zephyr looks to be just another model aircraft, and it is even launched by hand. But this "pilotless" vehicle with its 18-metre wingspan incorporates world-leading technologies.

Its structure uses ultra-lightweight carbon-fibre material; and the plane flies on solar power generated by amorphous silicon solar arrays no thicker than sheets of paper. These are glued over the aircraft's wings.

To get through the night, the propellers are powered from lithium-sulphur batteries which are topped up during the day.

"A lot of effort has gone into power storage and light-weighting the systems," explained Mr Kelleher. "Lithium sulphur is more than double the energy density of the best alternative technology which is lithium polymer batteries.

"They are an exceptional performer. We've worked with the Sion Corporation. They've had them in development for years. We're actually the first application in the world for them."

Vulture venture

Zephyr has demonstrated that it can cope with extremes of temperature - from the blistering 45C heat found at ground level in Arizona's Sonoran Desert, to the minus 70C chill experienced at altitudes of more than 18km (60,000ft).

The engineers from the Farnborough-based company are now collaborating with the American aerospace giant Boeing on a defence project codenamed Vulture.

This would see the biggest plane in history take to the sky, powered by the sun and capable of carrying a 450-kilo (1,000lb) payload.

US commanders say the design must be able to maintain its position over a particular spot on the Earth's surface uninterrupted for five years.

QinetiQ is also developing UAV technology for civilian uses.

It has been working recently with Aberystwyth University on field monitoring trials, plotting areas of ground that may or may not need fertiliser applications.

Zephyr (QinetiQ)
Lightweight plane (30-34kg/70lb) is launched by hand
Coms or surveillance payload of about 2kg (4.5lb)
Flies autonomously and can climb to more than 18km (60,000ft)
By day, Zephyr flies on solar power and recharges its batteries
Advanced amorphous silicon solar arrays supplied by Unisolar
Rechargeable lithium-sulphur batteries supplied by Sion Corp

38
Hangar Flying / Link to Spaceship 2
« on: August 09, 2008, 12:25:38 PM »

39
So, there I was hanging like a Christmas tree ornament with my feet dangling 8 inches off the ground.  There was no way I was going to let go. Only seconds before I had noticed that the nose wheel was offset to one side not allowing clean entry into the gear recess.  So I had gently raise the nose kicked the tire into the correct position and in one unconscious moment taken a little peak underneath the fuselage to see if the angle was correct. I raised the fuselage just passed my normal lifting point. I heard the fuel sloshing to the back.  The nose started to rise to the heavens.  I grabbed the canard with both hands as a rose past my chin., Up, up it went.
 
My wife, only 15 feet away preparing our sleeping accommodations inside the tent, heard me calling her as my body swayed back and forth "Paam...Pam!  I could really use your help right now." From my tone of voice she knew something wasn't quite right and quickly assessed the circumstance, grabbed the nose of the aircraft and helped me ground it.
 
We were fortunate that we had the old football style wheel pants. Between my weight on the canard and the angle of the wheel pants in contact with the ground the full nose up experience was averted.
 
It's one thing to make a mistake like this in isolation. It's another to do it at the Arlington fly-In parked with no less than a dozen canard aircraft nearby. Joe Person, Tom Staggs, Dale Martin were quick to help me assess the damage to the wheel pant.  An aluminum mounting bracket had broken cleanly.  It was extracted, examined and then flown to an undisclosed location.  Joe Person fabricated and installed a new part before 10:30 AM the next day.  These guys are my heroes.  Not just because of their abilities but because of their generosity.
 
It was not long before I had heard several stories from other canard pilots of their experience watching their aircraft point skyward.  Most experiences and with broken propellers, bruised egos and fiberglass repair work to the back side of the aircraft.  One of the pilots consciously clocks his propeller such that it stops at the 3:00 and 9:00 position so that if this were to happen again at least he would not lose its propeller.
 
Unanimously everyone has had this experienced was taken aback about how quickly it occurred.
 
I wouldn't have guessed how quickly it went out of balance and that it could lift a 180 pound man off the ground and keep him hanging there indefinitely.

Thanks for the help boys (and girl).


Arlington was a blast.  Hundreds of aircraft, amazingly aerobatic demonstrations including aircraft doing aerobatic routines at night with fireworks attached to them.. .  Something Pam and I have never seen before.

Dave

40
Hangar Flying / Re: Looking for Help in Buying My Dream
« on: June 22, 2008, 08:30:30 PM »
Mike,

Glad you made it though it.

What caused the fire?

What can we learn?

Dave

41
Hangar Flying / !
« on: June 22, 2008, 08:28:06 PM »
Somebody tell me what I missed!

Dave

42
Hangar Flying / Looking for Help in Buying My Dream
« on: May 21, 2008, 10:40:08 PM »
Any updates?

Dave

43
Hangar Flying / Cockpit heater system
« on: May 06, 2008, 11:23:55 PM »
Installed the 12volt outlet prior to flight from Eugene to Columbia for the GIB. Spent $30 on a 12 seat heater (with massage option) and my sweetie kept warm with that and one of our 2 down sleep bags tucked around her...at 10k + ... easy, inexpensive and effective....


and electric socks are the answer (IMO) up front.

Dave

44
Hangar Flying / Canards de Mayo 2008
« on: May 04, 2008, 09:14:28 AM »
Don,

Thanks for your hard work...had to leave early because of a commitment but we enjoyed the slice we got..

Home at 10,500 and flew through a hole in the clouds near Eugene to get down.

2:36 Creswell to o22 with a tailwind (398 NM)
2:56 back with a headwind

See you next year and thanks for my sunglasses!

Dave and Pam

45
Hangar Flying / Canards de Mayo 2008
« on: April 30, 2008, 11:55:34 PM »
We are going to try for an afternoon departure...work and weather permitting...wish us luck,

Dave and Pam

Pages: 1 2 [3] 4 5 ... 13