Mike,
I've been meaning to try the PJ series BETE nozzles. Have You used them, and if so, how did You like them ?
Al Belli
Search found 557 matches
- Sun May 16, 2004 10:20 pm
- Forum: Tools and Construction
- Topic: a million 12 volt fuel pumps...which one to choose??
- Replies: 13
- Views: 12344
- Sun May 16, 2004 3:00 pm
- Forum: Tools and Construction
- Topic: a million 12 volt fuel pumps...which one to choose??
- Replies: 13
- Views: 12344
Fuel pump
I am using an automotive fuel pump for my tests using gasoline. The pump is for a Ford 4, 6, or 8 cylinder engine from 1983 to 1991. The pump is available at Autozone for $76.00, or You can scout the auto scrapyards for a used unit. The pump is a Master E-2000 gearotor type, and will produce in exce...
- Sat May 15, 2004 3:24 pm
- Forum: Tools and Construction
- Topic: a million 12 volt fuel pumps...which one to choose??
- Replies: 13
- Views: 12344
Windshield washer pumps
I have used Windshield washer pumps for methanol fuel, but the pump fails almost instantly on gasoline !
Al Belli
Al Belli
- Thu May 13, 2004 8:02 pm
- Forum: Off topic forum
- Topic: whale flippers may improve airplane wing design
- Replies: 11
- Views: 8989
Schelkin spiral
Hi Bruno,
I wasn't thinking detonation, but I thought the use of the coil might help to accellerate the exhaust out the tailpipe and improve thrust.
Al Belli
I wasn't thinking detonation, but I thought the use of the coil might help to accellerate the exhaust out the tailpipe and improve thrust.
Al Belli
- Thu May 13, 2004 7:28 pm
- Forum: Off topic forum
- Topic: whale flippers may improve airplane wing design
- Replies: 11
- Views: 8989
Schelkin spiral or coil
Hi Mark,
Here's some info from a deflagration to detonation transition paper from Caltech. The Schelkin spiral used in the test of this 1 1/2" Dia. tube ( 5' l.)is 12" long x 1 1/2" od x 7/16" pitch, and is made from 5/32" Dia. wire.
Al Belli
Here's some info from a deflagration to detonation transition paper from Caltech. The Schelkin spiral used in the test of this 1 1/2" Dia. tube ( 5' l.)is 12" long x 1 1/2" od x 7/16" pitch, and is made from 5/32" Dia. wire.
Al Belli
- Thu May 13, 2004 12:44 pm
- Forum: Off topic forum
- Topic: whale flippers may improve airplane wing design
- Replies: 11
- Views: 8989
Russian engineering
Bruno,
Your story reminds Me of the American engineers laughing at the vacuum tube electronics in the MIG fighter; until they realised that the vacuum tube electronics were used to provide EMP protection in the event of an atomic blast !
Al Belli
Your story reminds Me of the American engineers laughing at the vacuum tube electronics in the MIG fighter; until they realised that the vacuum tube electronics were used to provide EMP protection in the event of an atomic blast !
Al Belli
- Thu May 13, 2004 12:22 pm
- Forum: Off topic forum
- Topic: whale flippers may improve airplane wing design
- Replies: 11
- Views: 8989
Shelkin coil
Has anyone tried adding a Shelkin coil to a pulsejet at the combustion chamber entrance to the tailpipe, and if so, how did it affect the performance of the pulsejet ?
Al Belli
Al Belli
- Thu May 13, 2004 12:17 pm
- Forum: Off topic forum
- Topic: whale flippers may improve airplane wing design
- Replies: 11
- Views: 8989
Turbulators
Model airplane gliders have been using turbulator strips applied to the upper surface of the leading edge of the wing for many years. A thin nylon monofilament streached spanwise at the leading edge, spaced about 2 to 3 MM above the top surface has proven quite effective in improving lift. The " str...
- Thu May 13, 2004 11:58 am
- Forum: Off topic forum
- Topic: whale flippers may improve airplane wing design
- Replies: 11
- Views: 8989
Lumps & Bumps
Whwn I worked at the US Rubber research center during the early 1960's,we were experimenting with a rough surfaced material patterned after the skin surface of a shark. The material was applied to an instrumented boat, and various bump shapes were evaluated. There was a significant drag reduction ef...
- Thu May 06, 2004 8:25 pm
- Forum: Off topic forum
- Topic: Playing with proportions
- Replies: 11
- Views: 9801
- Thu May 06, 2004 7:07 pm
- Forum: Off topic forum
- Topic: Playing with proportions
- Replies: 11
- Views: 9801
Treager's book on E-bay
Alan,
This has a buy-it-now price of $45.00
A very good value for the amount of information it contains !
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... eName=WDVW
Al Belli
This has a buy-it-now price of $45.00
A very good value for the amount of information it contains !
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... eName=WDVW
Al Belli
- Thu May 06, 2004 12:53 pm
- Forum: Off topic forum
- Topic: Playing with proportions
- Replies: 11
- Views: 9801
Turbojet
A very ambitious project indeed !! For an axial flow turbojet, Your compressor should give about 22 Psig. with a resulting thrust of about 17 pounds per inch of tailpipe area, assuming a compression ratio of 1.2:1 per stage. These estimated values assume that Your compressor is properly designed. I ...
- Wed May 05, 2004 12:06 pm
- Forum: Off topic forum
- Topic: Electric motors - any ideas?
- Replies: 8
- Views: 7289
Motor horsepower
Hi ,
1 Hp. = 746 Watts
3Kw. = 4 Hp.
2 Kw. =2.7 Hp.
Al Belli
1 Hp. = 746 Watts
3Kw. = 4 Hp.
2 Kw. =2.7 Hp.
Al Belli
- Tue Apr 27, 2004 8:27 pm
- Forum: Valved pulsejet forum
- Topic: Need Simple Pulse-Jet body
- Replies: 22
- Views: 23743
Balancewheel
In answer to Your questions: Do you know if the change in balance wheel spoke design came about at the same time? Do you know if there is a proper name for it? There is no apparent connection between the Incabloc bearing and the spiral spoked balancewheel. The balancewheel design predates the Incabl...
- Tue Apr 27, 2004 12:20 pm
- Forum: Valved pulsejet forum
- Topic: Need Simple Pulse-Jet body
- Replies: 22
- Views: 23743
Incabloc
The bearing suspension system called Incabloc is the shock reducing system used to support the staff that the balancewheel rotates on. The shape of the balancewheel shown in the above listing, was used to reduce the temperature expansion and distortion of the balancewheel to improve the timing accur...