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Post by Garf on Sept 30, 2005 15:12:23 GMT -7
I found this in a 1960 magazine.  |
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Post by invisible on Sept 30, 2005 17:57:40 GMT -7
The Bob Palmer tank is a uniflow, and several years earlier than the article. I think the uniflow has been independently invented several times. Clarence Idoux told me he started using them flying McCoy 49 ignition speed models on 52 ft lines. I suppose that would be in the 40's. That may well be the first published article on them, however. The basic principle and physics of same was worked out by Edme Mariotte around the mid 1600's. Notice that the uniflow in the article is at the front of the tank. This is also true of the Palmer tank, and a number of British and European copies of the Palmer tank. I have made several tanks that way and they work fine.
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Post by Garf on Sept 30, 2005 19:56:02 GMT -7
I knew the principle dated way back, but I don't know just how far back.
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Post by Bill Jacklin on Oct 1, 2005 9:20:32 GMT -7
Note also that Fig. 2 is NOT analagous to Fig. 1; the tank type that IS analogous to Fig. 1 is the 'chicken hopper' type which has been used in carrier and some combat circles with a fair degree of success.
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Post by invisible on Oct 1, 2005 9:52:59 GMT -7
Good point. It is interesting that in the chicken hopper as shown, the reservoir is a uniflow tank, but the regulating surface is actually the airsurface at the bottom of the reservoir thank. No reason to uniflow the little tank in a true chickenhopper tank.
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