Search found 557 matches

by Al Belli
Mon Jan 10, 2011 8:11 pm
Forum: Off topic forum
Topic: Alan E. Belli, 68
Replies: 3
Views: 831

Alan E. Belli, 68

No farewell words were spoken, no time to say goodbye, you were gone before we knew it, and only God knows why..Alan E. Belli, 68, passed away peacefully in his sleep on Monday morning, January 10, 2011. He was born on February 1, 1942 in Passiac, NJ a son of the late John B. and Elsie (Kanis) Belli...
by Al Belli
Sat Aug 28, 2010 2:38 pm
Forum: Off topic forum
Topic: (Honeywell) Missile Rate Gyroscope
Replies: 14
Views: 3452

Re: (Honeywell) Missile Rate Gyroscope

Hi,

I think You mean Hz. NOT Mhz.

Al Belli
by Al Belli
Mon May 04, 2009 8:18 pm
Forum: Valved pulsejet forum
Topic: Essential reading
Replies: 4
Views: 8337

Re: Essential reading

Hi, I am having the Russian pulsejet book ( that Mike Everman posted ) translated into English, and would like to know how many forum members would be interested in purchasing a CD, or printed copy. The translation is being done by an American aerospace engineer ( rocket scientist ) who has worked e...
by Al Belli
Thu Feb 26, 2009 2:18 pm
Forum: Valved pulsejet forum
Topic: Caged Ball Valves
Replies: 14
Views: 4409

Re: Caged Ball Valves

Hi,

McMaster Carr has a hollow stainless steel 1" ball that may be useful as a valve component.

Part Number: 9327K33
$8.83 Each
Material
Tough Wear-Resistant Stainless Steel (Type 440A)


Ball Type
Hollow
Diameter
1"
Diameter Tolerance
±.005"
Sphericity
.001"

Rockwell C54-60

Al Belli
by Al Belli
Mon Feb 09, 2009 11:51 pm
Forum: Valveless pulsejet forum
Topic: What Fuel
Replies: 39
Views: 3604

Re: What Fuel

Hi pyrojoe,

The cracks that occur in old brass items are a metallurgical problem called " season cracking " .

This condition rarely occurs in modern brass products that are properly heat treated during manufacture.

www.hghouston.com/coppers/brass77.htm for more information.

Al Belli
by Al Belli
Wed Oct 08, 2008 2:53 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1692
Views: 244923

Re: Odds and ends

Hi Mark,

The guy said that the blades weighed 22,000 pounds each !!!!!!

Al Belli
by Al Belli
Tue Sep 30, 2008 1:25 pm
Forum: Jet Vehicles, All Types
Topic: Miss Galveston - Land, Water or In the Air
Replies: 15
Views: 3881

Re: Miss Galveston - Land, Water or In the Air

Hi Irvine.J,

Music wire is high carbon steel which is pre - hardened during the drawing process, and is about as hard as any tool steel tool that You might use to try to cut it.
The best method for cutting it is to use an abrasive cutoff wheel or the corner of a grinding wheel.

Al Belli
by Al Belli
Wed Sep 24, 2008 2:05 pm
Forum: Off topic forum
Topic: Making a vacuum tube from scratch
Replies: 10
Views: 1638

Re: Making a vacuum tube from scratch

Hi Larry,

A 1/4 wave antenna at 1040 Khz. is ( 234/1.040) feet = 225 feet high, assuming a velocity factor of 1.0

Al Belli
by Al Belli
Thu Sep 04, 2008 1:23 pm
Forum: Valveless pulsejet forum
Topic: Glass CC
Replies: 15
Views: 2098

Re: Glass CC

Hi Larry, The glass seals were made using a nickel based alloy, Kovar. Frim Wiki--- Kovar (trademark of Carpenter Technology Corporation) is a nickel-cobalt ferrous alloy designed to be compatible with the thermal expansion characteristics of borosilicate glass (~5×10-6 /K between 30 and 200°C, to ~...
by Al Belli
Wed Jun 04, 2008 8:23 pm
Forum: Valved pulsejet forum
Topic: Self-starting VALVED ! ! ! (patent)
Replies: 4
Views: 1803

Re: Self-starting VALVED ! ! ! (patent)

Hi,

Figure 29 in the Russian pulsejet manual shows two rectangular floppy valves, but since I can't read Russian I don't know what the article says.

Al Belli
by Al Belli
Thu Apr 10, 2008 7:33 pm
Forum: Tools and Construction
Topic: Rotational channel
Replies: 4
Views: 1185

vortex

Hi pyrojoe,

The item is defined as a vortex cavity or vortex cell. It might be referred to
by adding circumferential to the description, if it is in a tubular combustor.

Al Belli
by Al Belli
Thu Apr 10, 2008 7:19 pm
Forum: Gas turbine forum
Topic: Gas turbine BBQ
Replies: 11
Views: 2847

castor oil

Hi Jim,

I don't think that the ex-Cuban dictator makes castor oil, but Castrol does.

Sorry, sometime I can't restrain My warped sense of humor.

Al Belli
by Al Belli
Sun Mar 02, 2008 9:30 pm
Forum: Valveless pulsejet forum
Topic: Thrust Augmentor Calculation Help
Replies: 1
Views: 608

Augmentors

Hi,

See Bruno's post on thrust augmentors in the FAQ section of this site.

You can expect 1.8 to 2 times thrust augmentation.

Al Belli
by Al Belli
Sun Mar 02, 2008 9:27 pm
Forum: Valved pulsejet forum
Topic: Thrust Augmentor Calculation Help
Replies: 2
Views: 1648

Augmentor calculations

Hi,

See Bruno's post on thrust augmentors in the FAQ section of this site.

You can expect 1.8 to 2 times thrust augmentation.

Al Belli
by Al Belli
Fri Feb 29, 2008 3:57 pm
Forum: Tools and Construction
Topic: Long Tail Cone Fabrication
Replies: 13
Views: 2860

metric adjustable wrench

Hi,

Here is a scan of My metric adjustable wrench.

Al Belli