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  Topic: RRHT book on Allisons
jjuutinen

Replies: 1
Views: 2949

PostForum: Book, Mags, Films, Recordings, Reference   Posted: Thu Mar 27, 2008 05:33   Subject: RRHT book on Allisons
Anyone seen what does this book include within:"The Allison Engine Catalogue 1915-2007" by J. Leonard?
  Topic: Flight Magazine Archives
jjuutinen

Replies: 1
Views: 3176

PostForum: Book, Mags, Films, Recordings, Reference   Posted: Sat Mar 08, 2008 20:43   Subject: Flight Magazine Archives
Good stuff there but really awkward and painfully slow to navigate Sad
  Topic: Automatic engine controls
jjuutinen

Replies: 2
Views: 4723

PostForum: Technical Discussion   Posted: Fri Feb 15, 2008 21:07   Subject: Automatic engine controls
That explanation does work for the major series produced ones, but even late desigs when did not really have such urgency like the F8F, F7F failed to have the level of automation that was available in ...
  Topic: Automatic engine controls
jjuutinen

Replies: 2
Views: 4723

PostForum: Technical Discussion   Posted: Fri Feb 15, 2008 12:13   Subject: Automatic engine controls
Just been wondering how far behind US engine makers were in introducing automatic engine controls to even ti their fighter engines. E.g. even late designs like the F8F had much higher pilot workload t ...
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Sun Feb 10, 2008 18:43   Subject: Funding for B-29 FIFI
If I may, it seems that the injection system used in the R-3350 is/was a poor one compared to the German systems. After all, the Finnish AF which was not the most experienced on more complicated aircr ...
  Topic: Turbochargers and Reno
jjuutinen

Replies: 5
Views: 6449

PostForum: Technical Discussion   Posted: Sun Feb 10, 2008 18:31   Subject: Turbochargers and Reno
Again, could Billīs "failure" be indeed related to the carburettorīs inability to work under positive pressure?
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Fri Feb 08, 2008 12:28   Subject: Funding for B-29 FIFI
Thanks Kip! By the way, even without water recovery system, cruyising with ADI would make sense: letīs assume that the ADI would save 15% fuel. Assume a fleet of aircraft operating from an island base ...
  Topic: Turbochargers and Reno
jjuutinen

Replies: 5
Views: 6449

PostForum: Technical Discussion   Posted: Thu Feb 07, 2008 04:26   Subject: Turbochargers and Reno
Well, to me eyes the many mods described by Grahamīs arrticles are not simple, to say the least. Fitting a turbocharger wouldnīt be that difficult. I have been thinking that perhaps the Bendix pressur ...
  Topic: Turbochargers and Reno
jjuutinen

Replies: 5
Views: 6449

PostForum: Technical Discussion   Posted: Wed Feb 06, 2008 20:22   Subject: Turbochargers and Reno
Question: why donīt Reno people remove the engine stage supercharger altogether and thus get rid of the power eating device and replace it with pure turbocharging? In virtually all other forms of moto ...
  Topic: Ethanol PN rating (lean/rich)
jjuutinen

Replies: 6
Views: 6890

PostForum: Technical Discussion   Posted: Sat Feb 02, 2008 12:12   Subject: Ethanol PN rating (lean/rich)
100 PN=100 octane
130 PN=allows 30% higher IMEP than 100 PN
150 PN=allows 50% higher IMEP than 100 PN

and so on.
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Sat Feb 02, 2008 06:20   Subject: Funding for B-29 FIFI
I beg to disagree. A condenser is a very simple device after all.

By the way, have you read William Wolfīs B-29 book? I mean that 360-page tome. Excepting a serious hiccup in the propeller section, ...
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Thu Jan 31, 2008 01:44   Subject: Funding for B-29 FIFI
Yes, the second para is correct. I disagree on the third for I donīt think the addition of ADI would make the B-29 a maintenance nightmare if it wasnīt that already!
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Tue Jan 29, 2008 10:47   Subject: Funding for B-29 FIFI
You are not arguing:) The key point on the cruising application would have been the development of a method to recover the water by condensing it from the exhaust. Had the method been devised, it woul ...
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Mon Jan 28, 2008 10:31   Subject: Funding for B-29 FIFI
Schauer, if you use ADI at constant rpm and MAP, the CHTs will be lower than without ADI. There is no technical reason why ADI couldnīt be used at the same boost. In fact, there were plans to use ADI ...
  Topic: Funding for B-29 FIFI
jjuutinen

Replies: 20
Views: 18471

PostForum: Technical Discussion   Posted: Mon Jan 28, 2008 01:50   Subject: Funding for B-29 FIFI
At 140,000 lbs or so the handbook values are 5000+ ft ground run and over 7000 ft to clear 50 ft. The Lancaster II manages (at about 70,000 TOW, practically an overload condition) to get airborne in l ...
 
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