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Dear Son:
Just a few lines to let you know that I'm still alive. I'm writing this letter slowly because I know that you cannot read fast. You won't know the house when you come home, we've moved.
About your father... He has a lovely new job. He has 500 men under him. He is cutting the grass at the cemetery.
There was a washing machine in the new house when we moved in, but it wasn't working too good. Last week I put 14 shirts into it, pulled the chain, and I haven't seen the shirts since.
Your sister Mary had a baby this morning. I haven't found out whether it is a boy or girl, so I don't know whether you're an aunt or uncle.
Your uncle Dick drowned last week in a vat of whiskey in a Dublin brewery. Some of his workmates dived in to save him, but he fought them off bravely. We cremated his body, and it took three days to put out the fire.
Your father didn't have much to drink at Christmas. I put a bottle of castor oil in his pint of beer. That kept him going till New Years day.
I went to the doctor on Thursday and your father came with me. The doctor put a small tube into my mouth and told me not to open it for ten minutes. Your father offered to buy it from him.
It only rained twice last week. First for 3 days, and then for 4 days. Monday it was so windy that one of our chickens laid the same egg four times.
We had a letter yesterday from the undertaker. He said if the last installment wasn't paid on your grandmother within 7 days; up she comes.
Your Loving Mother,
P. S. I was going to send you $10.00 but I had already sealed the envelope.
First run in 1937, [1] the R-2800 was America's first 18-cylinder radial engine design. The Double Wasp was more powerful than the world's only other modern eighteen, the Gnome-Rhône 18L of 3, 442 in³ (56.4 L); which itself was even larger than the contemporary American Wright Duplex-Cyclone radial of 3, 347 in³ (54.86 L) then under development[2] (and promising to be more powerful than either the P&W or Gnome-Rhone radials)[3], but the Double Wasp was much smaller in displacement than either of the other 18-cylinder designs, and heat dissipation was a greater problem. To enable more efficient cooling, the usual practice of casting or forging the cylinder head cooling fins that had been effective enough for other engine designs was discarded, and instead, much thinner and closer-pitched cooling fins were machined from the solid metal of the head forging. The fins were all cut at the same time by a gang of milling saws, automatically guided as it fed across the head in such a way that the bottom of the grooves rose and fell to make the roots of the fins follow the contour of the head. Cylinder cooling was effected by aluminum cooling muffs that were shrunk onto the steel alloy forged barrels. In addition to requiring a new cylinder head design, the Double Wasp was probably the most difficult to effectively direct a flow of cooling air around.[4] The twin ignition magnetos on the Double Wasp were prominently mounted on the upper surface of the forward gear reduction housing and almost always prominently visible within a cowling, with the driveshafts for the magnetos emerging from the gear reduction case either directly forward or directly behind the magneto's cases, or on the later C-series R-2800s with the two-piece gear reduction housings, on the "outboard" sides of the magneto casings.
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