C. Beaty

Chuck,

Haven't seen you in a few years. I hope I see you at Wauchula this week end. I have been to several of the Bensen Days Fly-ins, but I always seem to miss you. I don't know if Ernie has told you, I am building a Dominator. Just starting. I don't expect to build this one in a hurry as I still have my Cessna and I fly regularly so there is no hurry to get the Dominator flying. I just want something to keep me busy and away from the computer. I now have access to CAD and technology that I did not have when I was a kid in the 70's. I expect that my Dominator will really put my old VW powered Bensen to shame. I want to thank you for all the help you proivded me with in the 70's. I would never have had a gyrocopter if not for you.

Best Regards,
Phil Alvarez

G'Day Chuck,

I was hoping to meet you this year when I am in the US. Please advise if this is a possibility.

Cheers,

Mitch

rocksfly@gmail.com

Thanks & Best Regards,

Gene
You Can Respond Here or send a private message

Chuck,

Has anyone ever welded a Bensen together instead of using bolts, can it be done?

Thanks, Gary
gyro19xl

Hello mr. Beaty,
i have a question about building a KB3 from stainless steel tubes like the chassis from the european MT03 from Auto-Gyro.com.
Do you think, using same diameter of tubes is it strong enough? The prob in europe is to find 6061 T6 aluminum or similar and if you find, its very expansive.
best regards
Hermann G. from Italy

Chuck,

recently I found the answer to the question in your post #2 in this thread:
http://www.rotaryforum.com/forum/showthread.php?t=32370. I have added it at the end.

Note that I have also added links to the two Russian books which were translated in the "Technical Papers, Books, and Publications" section, so that anyone can have a look for himself.
http://www.rotaryforum.com/forum/showthread.php?t=32452
The Russian books are in DJVU format but WinDJVU is a freeware viewer which is available on the web.

Cheers,

Juergen

Hi Chuck

I have some rotor blade question I would like to ask you but not here on the forum. Can you send me your email address

Thanks John H
Millennium helicopters

Hello again.
I found this online calculator:
http://www.engineersedge.com/calcula...e_levers_2.htm
This appears to be the correct one to me.
So for a 120" lever Using 200 lbs at the end. I would just place the landing gear at 40" in order to get 600 lbs testing force.
Does this seem correct?

I am testing my main gear with 600 lbs force released at a height of 24". My design wt is somewhere around 400 lbs. I weigh about 160 dressed. I figured that dropping it at 2 feet several times would be a reasonable test in case I prang it in.
Do you agree?
Thanks for your input Chuck,
Mike

Hello Chuck.
I was hoping that you could help me calculate the forces on a landing gear test rig.
My setup would look like:
1. 10 to 12 foot lever made of 2x2 square tubing with its pivot on one end to a fixed point. ie: 3 feet high on a garage wall.

2. My landing gear that will be tested will be fixed some where near the middle.

3. About 1 foot near the other end I plan on have two 55 gallon drums of water to act as the testing force.

4. The very end of the lever, near the testing force, I will have a small, flat plate welded so as to allow me to set a 3X3 or 4X4 post that it tall enough so as to elevate the landing gear to about 2 feet above the garage floor.

5. I plan on then filling the water drums to varying amounts and then knock the support post out. The rig will then slam down and test how the gear performs.

I was hoping to find out from you what the calculation would look like.

Thanks in advance for your help.
Mike

Hi, Chuck, I have read a lot about your 3 bladed heli & gyro. There is one part I would like to understand better if possible:

How is the pitch case attched to the hub? since the flapping is don by flexible metal sheeting wont there be some kind of damper between the hub and the pitch case?