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Jack Morrison

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Posts posted by Jack Morrison

    Winglet Design

    in Other Modifications

    Posted

    Way to go on the winglets Wayne. You should see about 10 mph increase from the info I have. I showed a 10-11 kt increase on my E Racer but that intersection has a little more drag than the Long, no one knows how much, but there is a slight difference. Besides the increase in airspeed, it really looks neat.

     

    Jack

    Trim Problem

    in Long-EZ

    Posted

    Beside doing what has already been suggested,I would also take a very close look at the airfoils on the elevator and canard and the gap between the two. Full forward stick and flutter could be a disaster waiting to happen. Be carefull.

     

    Jack

    Seatbelt Attach layup oops

    in Chapter 8

    Posted

    I agree with Kent. I had two true tests of the strength of the plans seat belt construction. First was when I was doing the testing of the supercharging system on my E Racer in 2000. Was on a extended downwind for rw33 and on my turn to final, 1/2 mile out at 400 ft the engine quit. would not restart and I did a gear up landing in a bean field about 1/8 mile short of rw33. The groung was soft from two days of rain and when the AC was at 2ft, the right dug into the raising terrain and exploded(blew of the right wing ) flew 300 feet behind the AC. It felt like I hit a solid rock. Point being, the seat belt anchors were not compromized in any way. Second, When I had the inflight fire incident last year, I put the AC on the runway hard and fast, 200 mph, colapsed the left main grae and slid down the runway 1500 ft, still did not compromize the seat belt anchors. That is until the fire consumed the AC. My opinion, move on, that little air bubble will make no difference in the safety of the seatbelt system.

     

    Jack

    E Racer Extreme

    Cozy vs E-Racer specs

    in E-Racer

    Posted

    The 10540 was fine after my incident. I went to high compression pistons, klaus duel electronic ign and airflow performance fuel injection, 325 hp at 2800 rpm. Fuel burn at altitude should be 11 gph at 200 kts true. Top end should be 275 mph. Everything was set up for the lyc. engine and I have an option of several cooling systems. Because of all the changes I have made to the new AC, I cannot call it an E Racer. Testing will tell exactly the performance and modifications will tell their worth.

     

    Jack

    Cozy vs E-Racer specs

    in E-Racer

    Posted

    The proto type had a CM F58 olds basic aluminum V8. bored and stroked with cut down chev. 327 rods, a combination of many engins with an end result of 289 cu-in about 225 hp at rpm NA. I had a all aluminum 4.3 chev V6, srroked to 4.9 with a vortec supercharger, 365 lbs, 280 hp at 4000 engine rpm, above 300 at higher rpm. It was also mounted in front of the firewall as per plans, in my opion not a good design. My new AC will have the 10540 with high compression pistons, twin Klaus ign. and an airflow performance injection, 325 hp. Weight should come in around 415 lbs, I will know for sure when I weigh the completed engine which should be very soon. Project is moving right along.

     

    Jack

    N200LZ: Chapter 10 - Part Two

    in Long-EZ

    Posted

    Funny about weighing product going on a project. When I painted my E Racer, I weighed all the product to paint the AC, less packaging and can weight came to 97 lbs. Weighed the AC before painting, all preped for paint and weighed after completed. Painted AC weighed +23 lbs. Go figure.

     

    Jack

    OpenEZ Plans update, pdf

    in Open-EZ

    Posted

    Mr Aiman from location: none. Not sure where that planet is located but give me some time, it might come to me. Being one of those gentle readers I thought I needed to respond. Marc Zetlin has given more free advice and answered more aernautical questions on this forum and other forums than anyone I know. Something he is not required to do. He does not have to stand on a soap box like you as he answers all questions with responsible and accurate answers. He does this for the safety of experimental aircraft and trying to keep other builders from making any foolish mistakes or errors in their build. If you have some positive or constructive information to add to the forum or a subject, go for it, otherwise go back to planet None.

     

    Jack Morrison

    E Racer Extreme

    Magnesium or Aluminum Wheels

    in Landing Gear

    Posted

    I also like the Matco brakes. The only problem is their linings or pads. Use the Cleveland linings and you will be very happy. I could stop my E Racer at MGW of 2200 lbs (80 kts) and stop in 1200 ft with the Cleveland linings. It would take another 400 ft with the Matco linings. I questioned Matco about that and they did not have an answer why. I had the dual puc arrangement, also going on the new AC.

     

    Jack

The Canard Zone

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