The easiest test for a functioning alternator is to read the voltage on the 12V bus. The battery without alternator will be 12.6 volts or less. A functioning alternator will show more than 12.6 volts.

An open alternator output, for example 50a breaker tripped or disconnected wire could cause the field breaker to blow only if the regulator suppling full voltage to the field draws enough current to t

Right on. A simple test is with power on and engine not running check voltage at alternator output, the large wire. You will see battery voltage if right or zero if the output circuit or breaker is op

The 50/60a breaker protects you from shorted diodes and disconnects the alternator output from the main power bus. The 5a breaker disconnects voltage to the regulator and alternator field. If the 5a t

Don’t know. Jim retired before I did and last I heard had moved to Thailand home of his wife. Sonia and Rick Hole Email: r.hole@...

Before retiring from Velocity I did a lot of firberglass work. Repairing spars, no. Safer to build from new. I’ve built two sets of wings/canards for Q2. LS1 spar canards under tutelage of Velocity’s

To answer the question RFI / EMI. Electromagnetic interference is the broader category which include Radio Frequency Interference. When I wrote RFI it was because the interference is known to be cause

Transponders are in the 1 GHz (microwave) range. Whether the same ferrite beads will be effective there I can’t predict. It wouldn’t hurt to try it. My guess would be since the transponder is a fixed

Bruce, you will remember me from my years at Velocity. I made and installed countless antennas before retiring. RG-400 is indeed superior and all but eliminates RF radiating from the center conductor

I didn't remember the losses by the numbers so I looked them up. Pasternak.com has long been reliable for UHF and above. RG58 at 1000 MHz is 20 dB per 100 feet, RG400 is 14.7. That's a large differenc

Transponders transmit high power pulses at a low duty cycle. Antenna heating is unlikely. If the antenna installation, as in Mike's case, gives good range you can be sure the antenna is working with a

Rich, you may be on to something important. But all we have is research information, theoretical. Would you be willing to build a set of wings and submit them to destructive testing? Only then would w

Hi Vic, welcome to Q-List Good to hear of you again Rick Hole

NO interest in Facebook from me. Rick Hole

Please check that the attachment of the ailerons to the aileron torque tube is solid. Any motion between those two will call for rebuilding the aileron. You can hold the opposite aileron immobile whil

I would suggest taking the mold from the outside of the cowl after it is smoothed with micro and primed. That way the parts pulled from the mold will have a smooth outside surface which helps with the

You might pole the group for others interested in your cowling. It is not difficult to make a mold so duplicates could be produced easily. I work at Velocity where we do the same types of things (the

You might try the VDO web site. Seems like if they are anywhere, they will be here: http://www.vdo-instruments.com/sensors.html Rick HOle

Located a Velocity, Sebastian, FL airport X26: Q2 parts for sale. Aircraft partially built and owner has died. Aircraft left outside in the sun with no primer and is no longer considered airworthy. En

Has anyone had experience with MIL-PRF-83282 or MIL-PRF-87257 with improved fire resistant composition? Rick Hole