EAA CHAPTER 614
*Meetings: First Tuesday*	*November Newsletter*

Fall Fly-In Time..........

November is going to be a busy month for the chapter. On November 2, we have the garage sale. It will be at Jim and Nancy's house. That way we get to catch all the people before they go to the Pecan Festival in Colfax. This is always a great money maker for the chapter. If you have anything for us to sell, you can take it to the hanger. Just call Margaret (445-1772) or Bill (445-8291) so we can make the hanger available to you.

November 2^nd is also the next Pancake Breakfast. Okay, girls and boys, who will make the most money this time? Remember the Garage Sale Girls won last time. Can you keep up with us, Pancake Pilots?

November 5^th is the next chapter meeting. We will be meeting at the Pride Aviation. Agenda includes final plans for the Fly-In.

And on November 8^th - 10^th is the Annual Fly-In, ah, sorry, Veteran's Day Memorial Fly-In. Young Eagles on Friday afternoon. The Chapter Banquet is Friday Night beginning at 6:00. Breakfast Saturday morning, Lunch beginning about 11:00. Left overs for Supper on Saturday night and Breakfast again on Sunday Morning. To accomplish all this we will need plenty of volunteers to cook, serve, and clean-up as well as park planes, register incoming pilots and fly Young Eagles. There will be awards for many of the pilots. Some of the Warbirds will be on hand from one of the local Confederate Air Force Units in Texas

If we get rained out we will try again on November 15^th - 17^th.

President's Note

Fellow Members,

I'm sitting brooding because it looks like Reklaw is going to be rained out. Maybe the weather man will be wrong. Anyway, we've got quite a few events of our own coming up that definitely WON'T BE RAINED OUT.

As usual, we will be having our Saturday Pancake breakfast on Nov 2nd. If you hadn't made one these yet, you need to come out and enjoy a really great breakfast with a view to kill for. Even a little Cajun music when Ed can get the radio to work.

On Tues, Nov 5th at 6:00 PM we will have our meeting at Pride. Please try to make this meeting as we will be discussing last minute details of our upcoming Fly-In at Pineville on Nov 8th, 9th and 10th. Please plan on attending the Fly-In, I've ordered perfect weather and the camping ought to be great. Also we will be having a Young Eagle Rally on Friday Nov 8th from 3:00 until. We really need planes and pilots to help with this. This will be followed by a delicious Fried Turkey, Fried Fish and Brisket dinner at our building at the Pineville Airport. We asking everyone to bring a pot luck dish, ie. veggies, salad, fruit, dessert, what ever your special dish is. In addition to the meat, the chapter will supply tea, soft drinks and bread. This is always a lot fun and a great opportunity to introduce a potential new member to our Chapter.

Also, keep in mind that our Garage Sale is coming up in Nov and we need items to sell. Please look around your house and bring a few of those old items you really don't want, but hate to throw away, and bring them to the next meeting. This is great way to make some money for our Chapter.

Hope you see all of your smiling faces at the upcoming events.

Jim

443-7173 - wk, 473-6029 - pg, 793-2992 - hm

"Wrenching Stuff" From Karl Comeaux

Judging from questions I've been hit with over the years there appears to be a myth regarding Lycoming piston engines. This myth seems to be prevalent among aircraft owners and homebuilders. In the minds of these individuals, each Lycoming engine series is essentially the same. For example, all 360 cubic inch displacement engines are inherently the same except for differences in fuel metering or turbocharging. The idea that these engines are the same is false. A few specific examples may help to put this myth to rest.

Lycoming builds 0-320 engines that produce 150 HP or 160 HP. The 150 HP O-320-E series engines operate at a compression ratio of 7.0:1. The 0-320-D series has high compression pistons which raise the compression ratio to 8.5:1, and increase rated output to 160 HP. Those who believe that the pistons are the only difference in these engines will be disappointed when they plan to upgrade their 0-320-E to the higher horsepower by simply changing pistons. Many models in the 0-320-E series were designed for the purpose of keeping the cost down. Thousands of these low compression engines were built with plain steel cylinder barrels instead of the nitrided barrels used in the 0-320-D series engines. They also had two narrow bearings instead of one long front main bearing. The engines were certified at 150 HP and were not intended to withstand the additional stress of higher horsepower.

Because of the similarity in designation, it would be easy to believe that the 0-360-AlA and the I0-360-A1A are the same engine except that the first engine has a carburetor and the second a fuel injection system. Here are some features of each engine for comparison. The 0-360-AlA has a bottom mounted updraft carburetor, parallel valves, 8.5:1 compression ratio, and produces 180 HP. The IO-360-AlA features a horizontal front mounted fuel injector, angle valves, 8.7:1 compression ratio, and is rated at 200 HP. The I0-360-A1A also incorporates these design items which are not included in the 0-360: piston cooling nozzles, stronger crankshaft, tongue and groove connecting rods with stretch bolts, tuned intake system, and rotator type intake valves. There are actually few similarities except for the 360 cubic inch displacement.

There are individuals who have suggested that by putting 10:1 compression ratio pistons in an I0-360 engine, it could be the same as the HIO-360-D1A. These are some characteristics of the HI0-360-D1A helicopter engine that can be compared with the data on the I0-360 listed in the previous paragraph. To start, the HIO has conical rather than dynafocal mounts. The main bearing is a thick wall bearing instead of the thin wall, high crush bearing used in the I0-360. Other differences include: crankshaft designed for small crankpins, high speed camshaft, rear mounted RSA7AA1 fuel injector, large intake valves, and torsional vibration damper magneto drives. By making comparisons of

Christmas Party

The Christmas Party is coming up very quickly. It will be held at 232 Main in Pineville. They have great food and it is a beautiful restaurant.

Call Margaret or Gayle and let them know if you are coming. We need to let the restaurant know before long.

of various parts and accessories used in engine models which some individuals have considered to be much the same, it is possible to illustrate the differences. Although some Lycoming models are closely related, this cannot be assumed. A review of the engineering parts list for each engine model by a knowledgeable individual is the only sure way of establishing similarities and differences. For those who may have been taken in by the myth that all Lycoming engines of a particular displacement are very much the same, you are now armed with a better knowledge of this subject.

Treasurer's Report

Debits:

Postage: $74.00
Printing: $17.50
CLECO: $24.37
Ryan's Tip: $40.00
TOTAL: $155.87

Credits:

Pancake Breakfast: $55.00

Bank Balance: $3697.54 (10/25)

Return to the Home Page