ZUCZZ

So, the discussion gets as heated as the armchair is uncomfortable! Here we sit with perfect hindsight and have as many opinions as there are people reading the topic. Me, I think that all the years of experience, together with a dollop of good fortune saved the day! There is simply no way that the PIC, as hot as they may deem themselves to be, is going to attempt this sort of maneuvre, knowing that this could be a terminal excercise. (Bin Laden's sidekicks excluded) My own rule for me (but you are welcome to adapt this for you too ) is not to critize the PIC in a crash or event such as this ... you see, I could have made worse calls if I were in their shoes. My happiness stems from the fact that all survived and we have a video to see the buckets full of luck being dished out to all aboard. Those people don't have to play the LOTTO for awhile, they have used it all up I hope to have as much skill & luck when this comes my way ... and you fine folks may fill the pages of the net with opions, I'll just consider my enormous amount of luck as I sit back to enjoy another day on this earth

I did the flow test like that ... gravity wise and proved (to myself) that if it all turned pearshaped that you could keep the show in the air with the flow available ... fuel flow wise, that is without motor turning :-) regards

A few more hours of work on this Monday & I'll punish the red wine myself!

Are they shooting at us, or is that the HUD showing the follow-me-line?

The reading suggested above is not applicable to pusher type a/c, if I understand anything at all ... The Cafe Foundation does have a lot of info on their site, also mostly on tractor set-up planes ... cannot help but wonder why However, in the exhaust section at : http://www.cafefoundation.org/v2/pdf_cafe_reports/EPG%20PART%20IV.pdf the following interesting tidbit is extracted from page 11: 8. Exhaust jet thrust was measured and calculated for several exit sizes, RPM’s and fuel flows. It can produce significant thrust at high power settings, especially at cruising altitudes.6 But my question still stands ... what is the airspeed of the air as it leaves the cowling. Regards

Cb, I obviously did not know, what with living in darkest africa & all.

This may not be the pertinent information that I am looking for. It deals with the flow as experienced by the "puller" type plane. An RV feller here in South Africa installed an air speed probe in an RV plane and measured 35 Mph at the cowling exit. This is my real question, what is our airspeed as it exits the cowling. Where would be the best position to measure this ... I am to install an airspeed probe & lead this to the front of the Cozy to take a reading. My first position is inside the cowl, facing forward between my exhausts & the flange. closer to the exhausts (may want to fix to that) Your suggestions welcome!

Thank you for the link, will do the reading. Regards

My question on this topic is "what is the airspeed" as it leaves the cowling? Does it create drag? if so how much? How can one get the best exit speed while maintaing the efficient cooling that the standard cowl gives. OK, I do have in cowl pipes & no more than 1/2" spacing anywhere to the motor. Just wondering.

For sticky stuff I used candlewax. Works in holes too. FWIW

Don't think Nat used a bandsaw, I have suspicion that the plane was put together with all the spare bits that he had lying around in his workshop ... judging by some of the odd sizes etc No ill meant whatsoever - all in jest!

I'll agree with "wait till the strakes are in" mostly because you will be able to adjust for any inaccuracies. Having said that - the plans work - everything ends up in the right place anyway

I never had a bandsaw & my Cozy is complete ... why did no one tell me that i REALLY needed one ... I feel deprived! My life would have been complete!

Sorry I can't help, too far away in Africa. Don't underestimate the value of getting used to the sidestick on a flight simulator ... use any plane & the kids single joystick. (I used 210) Best of luck!

Sorry for the very late reply. My Cozy was started 01 May 1995 & completed somewhere in 2005. Plans stuff was completed somewhere in 2002/3, that's when the money started flowing. If I had to do it again, the price would probably still be close to this. Our South African currency went for a loop during this period and the exchange rate went from (initially) R3/U$1 to almost R15/U$1, averaging on my costs at just over R8,50/U$1. Currently we look stronger because the U$ went a little weaker - good, stimulates your economy!

Great! We'll be watching

You are right, we can do it alone on ours, but I'd rather have someone standing by ... stuff happens

Methinks that aerobatics executed in a LongEze (saw this at Osh 1994) were the most elegant flying that I had seen, since seeing a display by a glider! Yeah, the Pitts does it differently, but that sort of extreme flying does not intrigue me

Work: Self employed as an Architect I earn my keep. For extra fun we also run a Construction Company. We do Schools, Hospitals, Factories & even Residencial work (most fun) Have served on the SAIA communications committee for a few years. Fun: Have been involved with EAA in various positions (Vice Pres, Pres, Safety Officer x 2, Newsletter Editor) in the EAA South African National Council, as well as Newsletter Editor for Chapter 322 for a few years. Also involved with the Aeroclub of South Africa on a "need help" basis. Own & Fly: Cozy Mk IV ZU-CZZ Aeronca Chief ZS-UVC Partenavia P64B ZS-FSH

My Cozy operates out of a 900m strip in Johannesburg South Africa. (FASY) On landing it needs taking power to prevent a full stop after the 500m mark, so I would guess that the full stop would occur around the 800m mark. That is with the nosewheel down on the ground . With the nosewheel retracted it stops under 500m - 150m from hockeypuck contact without using the brakes. BTDT

Around our patch in South Africa, there is a huge hullabaloo going on presently. After we have flown off the 25 or 40 hours with your Amateur Built plane during the "Proving Flight" period, then you get issued an "Authority to Fly" This in real terms contains no restrictions, if you read the SACAA laws, regs & ANR's. However we have some bureaucrats in our system that have taken it upon themselves to issue you with the AtF document with various restrictions, such as NO flight over Built Up areas, no night flying and don't even mention IFR! In fact they don't want us at any airport open to the public without prior arrangements. However we are taking them to task

Hi Jon Matcho & others, About this time in 2004. Septemberish All made out of plans materials, some from the USA, a lot locally sourced & lots of parts self made. The average exhange rate was R8/1U$, but it peaked in 2004 at R12/U$1. But my records do show about U$ 15K at the various conversion rates total at that time. Then the money started rolling on the finishing, motor, electrics etc. To date I have a total of U$ 50,543,50 in the project and 4150 productive activity hours to completion. Time to fly 20 hours has taken from 9/11 2005 today ... but I am slow! regards

my airframe costs came in at about U$ 15,000 (no motor, nothing but the plans goodies to make the surfaces work etc) ... then add everything you would like. Not included here is the transport, taxes etc to South Africa.

The plans for the hidden bellhorns are retrofit, so you could just run them straight. That's what I did, works fine for me.