Search found 557 matches
- Fri Sep 22, 2006 8:32 pm
- Forum: Valveless pulsejet forum
- Topic: First Design-mini linear
- Replies: 39
- Views: 36134
re: First Design-mini linear
Hi multispool, If You cut the threads by feeding the lathe carriage away from the bottom of the hole toward the right, the threading is much easier. I usually place the tool facing the rear of the bore, and run the spindle in reverse so that I can see the machining easier. I assume that You are usin...
- Fri Sep 22, 2006 5:07 pm
- Forum: Tools and Construction
- Topic: Has anyone used a STITCH Welder?
- Replies: 62
- Views: 56321
re: Has anyone used a STITCH Welder?
Hi Larry,
Your problem is why commercial sound distribution systems use a 70 volt high impedance output.
Each speaker has an adjustable matching transformer which allows the desired amount of volume / power to be selected.
Al Belli
Your problem is why commercial sound distribution systems use a 70 volt high impedance output.
Each speaker has an adjustable matching transformer which allows the desired amount of volume / power to be selected.
Al Belli
- Tue Sep 12, 2006 3:32 pm
- Forum: Valved pulsejet forum
- Topic: Questions/comments about my Pulsejet Design.
- Replies: 9
- Views: 8562
re: Questions/comments about my Pulsejet Design.
Hi Najm, The lengths of the system's parts are more important than the diameters. According to Tharratt, the thrust of the pulsejet can be calculated by the following formula : ( Total system volume in cubic feet / total system length in feet ) X 316 I have found this formula very useful to evaluate...
- Fri Sep 08, 2006 6:37 pm
- Forum: Valveless pulsejet forum
- Topic: Copper pulsejet?
- Replies: 34
- Views: 27067
re: Copper pulsejet?
Hi Larry,
See the attachment for a phase diagram of copper / aluminum alloy.
Continued heating cycles will produce precipitates that harden and strengthen the alloy.
Al Belli
See the attachment for a phase diagram of copper / aluminum alloy.
Continued heating cycles will produce precipitates that harden and strengthen the alloy.
Al Belli
- Fri Sep 08, 2006 6:07 pm
- Forum: Valveless pulsejet forum
- Topic: K-PT 07c thrust fix -- K-PT 07X release
- Replies: 21
- Views: 20351
re: K-PT 07c thrust fix -- K-PT 07X release
Hi Larry,
See-Saw in German is " schaukel "
Al Belli
See-Saw in German is " schaukel "
Al Belli
- Fri Sep 01, 2006 8:04 pm
- Forum: Valveless pulsejet forum
- Topic: Prettiest FWE (?) - the 'Lady Anne Boleyn'
- Replies: 133
- Views: 147044
re: Prettiest FWE (?) - the 'Lady Anne Boleyn'
Hi Larry,
Don't You ever eat sardines; and get " baited " breath. :)
"Bated breath" has been around a long time. Here's the first cite in the Oxford English Dictionary: "1596 Shakespeare, Merchant of Venice i. iii. 125 'With bated breath, and whispring humblenesse.'"
Al Belli
Don't You ever eat sardines; and get " baited " breath. :)
"Bated breath" has been around a long time. Here's the first cite in the Oxford English Dictionary: "1596 Shakespeare, Merchant of Venice i. iii. 125 'With bated breath, and whispring humblenesse.'"
Al Belli
- Mon Aug 21, 2006 4:20 pm
- Forum: Tools and Construction
- Topic: Uflow usable for pulsejets?
- Replies: 16
- Views: 20724
re: Uflow usable for pulsejets?
Hi Najm,
Here's the Zipped file in the attachment.
Al Belli
Here's the Zipped file in the attachment.
Al Belli
- Sat Aug 19, 2006 9:49 pm
- Forum: Tools and Construction
- Topic: Has anyone used a STITCH Welder?
- Replies: 62
- Views: 56321
re: Has anyone used a STITCH Welder?
Hi,
A commercially made stitch welder is inexpensive, see:
http://www.automotivesquare.com/sku19045.html
Al Belli
A commercially made stitch welder is inexpensive, see:
http://www.automotivesquare.com/sku19045.html
Al Belli
- Tue Aug 15, 2006 1:41 pm
- Forum: Off topic forum
- Topic: Speed of sound
- Replies: 7
- Views: 6074
re: Speed of sound
Hi Zippiot, Is sea level of the Atlantic and Pacific oceans the same? If so why are locks required in Panama? Sea level is about 20 cm higher on the Pacific side than the Atlantic due to the water being less dense on average on the Pacific side and due to the prevailing weather and ocean conditions....
- Sat Aug 05, 2006 6:45 pm
- Forum: Off topic forum
- Topic: How much power is needed to spin a radial compressor?
- Replies: 10
- Views: 8626
re: How much power is needed to spin a radial compressor?
Hi,
The formula for horsepower required to compress air is:
Horsepower = 0.2267 x CFM (( PSI/14.7 +1) raised to the 0.283 power -1))
An example:
A compressor moving one pound of air a second and giving 8.8 PSIG
will require 25.3 Hp.
Al Belli
The formula for horsepower required to compress air is:
Horsepower = 0.2267 x CFM (( PSI/14.7 +1) raised to the 0.283 power -1))
An example:
A compressor moving one pound of air a second and giving 8.8 PSIG
will require 25.3 Hp.
Al Belli
- Fri Jul 28, 2006 12:31 pm
- Forum: Valveless pulsejet forum
- Topic: Small.... copper pulsejet, some questions.
- Replies: 7
- Views: 7013
re: Small.... copper pulsejet, some questions.
Hi Mark van Werven ,
Go to the pulsejet section of this site, and download the calculator V1.4
Eric Beck Lockwood/SNECMA beta version- valveless .
Al Belli
Go to the pulsejet section of this site, and download the calculator V1.4
Eric Beck Lockwood/SNECMA beta version- valveless .
Al Belli
- Fri Jul 28, 2006 12:26 pm
- Forum: Valveless pulsejet forum
- Topic: Small.... copper pulsejet, some questions.
- Replies: 7
- Views: 7013
re: Small.... copper pulsejet, some questions.
Hi Mark van Werven ,
Go to the pulsejet section of this site, and download the calculator V1.4
Al Belli
Go to the pulsejet section of this site, and download the calculator V1.4
Al Belli
- Sun Jul 23, 2006 7:32 pm
- Forum: Off topic forum
- Topic: Insanity test
- Replies: 5
- Views: 4849
re: Insanity test
Hi,
That audio, in the insanity test ,really brings back memories of my SAAB-93
Al Belli
That audio, in the insanity test ,really brings back memories of my SAAB-93
Al Belli
- Wed Jul 19, 2006 2:24 pm
- Forum: Off topic forum
- Topic: Nature's Children
- Replies: 700
- Views: 359484
re: Nature's Children
Hi, The tree must be a Pussy Willow !!! Salix caprea, French Pussy Willows are large upright growing shrubs or multi-stemmed small trees. The large, fuzzy, silvery catkins open in late winter or very early spring. A Great plant for winter stems to force the buds to bloom for flower arrangements. Pre...
- Tue Jul 11, 2006 1:46 pm
- Forum: Ramjet forum
- Topic: Motorjet
- Replies: 56
- Views: 73286
re: Motorjet
Hi,
I don't know of anything that will withstand the high temperatures.
Al Belli
I don't know of anything that will withstand the high temperatures.
Al Belli