REFLECTOR: Velocity sound (was Expensive (but cool) video)

Mark Magee edjonesbrady at gmail.com
Mon Sep 17 13:29:20 CDT 2012


Kind Doctor,
They shall have to catch me, up high and makin' thunder...

Mark B. Magee
Sent from IPhone 4S

On Sep 17, 2012, at 12:55 PM, David Rene Dugas <renedugas at gmail.com> wrote:

> Mark,
> Love the way you think but you may be placed in a tower and then beheaded. 
> 
> Rene' Dugas
> Sent from my iPhone4S
> 
> On Sep 17, 2012, at 10:06 AM, Mark Magee <edjonesbrady at gmail.com> wrote:
> 
>> What problem with noise?
>> I can't imagine a noiseless high-performance aircraft. It's a little 'thunder' inside the cowling that gives us flight.
>> Frankly, I like to let the flightless hear my thunder.
>> If the flightless choose to build a house near where the flighted make their thunder and gain flight, well...
>> All I can say is:
>> 'Quils mangent de la brioche'...
>> 
>> 
>> Let them eat cake...
>> 
>> Mark B. Magee
>> N34XL
>> Sent from IPhone 4S
>> 
>> On Sep 17, 2012, at 9:28 AM, Carl Hoffman <hoffman3 at rcn.com> wrote:
>> 
>>> Republic Seebees and Convair B-36s have a problem with noise. The Seebees have a mod that runs the exhaust thru the wing spars which exits the trailing edge past the prop. Very few flying today have the original 215 HP, 490 CI Franklin engine in them. So, the mod is done when the engine is replaced.
>>> 
>>> 
>>> Sent from my iPad 2.
>>> 
>>> 
>>> On Sep 17, 2012, at 12:06 AM, Sid Knox <sbjknox at earthlink.net> wrote:
>>> 
>>>> From: "Richard J. Gentil" 
>>>> 
>>>>> Part of the distinctive sound is the engine exhaust 
>>>>> going through the prop. 
>>>>> Richard
>>>> 
>>>> My IO360 with a three-blade MT also has a distinctive sound as heard from the ground.  I believe it is a function of the four cyl engine exhaust pulses being modulated (chopped) by the three blades which produces a complex "beat note" third frequency.
>>>> 
>>>> Sid
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> Yea, they do sound different for sure- I know when a long EZ is over my house (we are near DTO) by the sound- and we also have a Piaggio service/fit out facility at the airport, and those airplanes are very distinctive (and very noisy) I think it is because they have small diameter props and running them right at the sound barrier- not sure, but you know for sure when one of them is going out or coming in for sure. 
>>>> Fortunately, there is no development anywhere near either end of our runway (yet) the city owns most of the property going out quite a way, and they only sell to commercial development.
>>>> 
>>>> 
>>>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Geoff Gerhardt
>>>> Sent: Sunday, September 16, 2012 8:22 PM
>>>> To: Velocity Aircraft Owners and Builders list
>>>> Subject: Re: REFLECTOR: Expensive (but cool) video
>>>> 
>>>> Alex,
>>>> 
>>>> 
>>>> 
>>>> Generally, Worcester is pretty supportive of the airport.  Its a relatively quiet Class D and they're currently trying to land JetBlue.  This weekend, ORH hosted some WW2 planes (a B-17, B-24, and P-51) - kinda neat to be in the pattern with them.  I waved to the folks on the flight line for the show today as I taxied out.
>>>> 
>>>> 
>>>> 
>>>> But, funny you should mention the noise.  I talked to a guy I know who lives close to the airport and I mentioned that I'm now test flying my plane.  He says, "I know, I hear it all the time."  I didn't realize that pushers had such a distinctive sound.  He said he went outside first time he saw it on my first flight b/c it was a different sound and thought it might be me.
>>>> 
>>>> 
>>>> 
>>>> Geoff
>>>> 
>>>> On Sun, Sep 16, 2012 at 8:29 PM, Alex Balic <velocity_pilot at verizon.net> wrote:
>>>> 
>>>> 
>>>> Great perspective shots Geoff – sorry about the case coming loose……BTW ( half joking ) how long do you think before those new subdivisions on the end of the runway will start petitioning to have the airport closed/noise abatement procedures implemented?  Seen It before many times…… 
>>>> 
>>>> 
>>>> 
>>>> 
>>>> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On Behalf Of Geoff Gerhardt
>>>> Sent: Sunday, September 16, 2012 7:25 AM
>>>> To: Velocity Aircraft Owners and Builders list
>>>> Subject: REFLECTOR: Expensive (but cool) video
>>>> 
>>>> Guys,
>>>> 
>>>> 
>>>> 
>>>> How cool would it be to strap a gopro video camera to my nose gear so it retracts/deploys with the gear, right?  I found a spot to mount it and made it a secure as possible.  After mounting it, I put the plane up on jacks and exercised the gear - yep, still retracts/deploys fine.  Time to try it.  I have the "wifi backpack" for my gopro, so I can control it from the cockpit (turn it on/off, start/stop recording).  Once I got clearance to take off, I started recording.  Did a  couple takeoffs and landings, flew around for a half hour or so, then headed back to the hangar.  Once I got out, I noticed that while the camera case was still nicely attached to the nose gear, the camera case had opened up, and there was no camera inside it.  Apparently one of my landings wasn't smooth enough and it jarred the case open.  I called airport operations (ORH is class D) and told them to do a runway sweep.  A few minutes later, one of the airport ops guys came by my hanger with the camera in several pieces.
>>>> 
>>>> 
>>>> 
>>>> You can see how I had it mounted here. 
>>>> 
>>>> http://thegerhardts.com/velocity/?p=573
>>>> 
>>>> 
>>>> 
>>>> Here's the video I was able to retrieve from the SD card.  You can see where the camera case popped open and the camera is just jiggling loose inside.  On the next landing, the case must have opened up all the way and the camera popped out.
>>>> 
>>>> http://www.youtube.com/watch?v=vE78J4ahlJ4 
>>>> 
>>>> 
>>>> 
>>>> I love the whoosh sound the camera made when the nose gear dropped down. 
>>>> 
>>>> 
>>>> 
>>>> So, if you use a gopro - probably best to put a zip-tie around the case to make sure it stays closed - particularly if you mount it in a high-vibration place.  I've never had a problem with a gopro mount coming loose.
>>>> 
>>>> 
>>>> 
>>>> I sent the video to gopro's support folks - they gave me 20% off a new camera - better than a kick in the teeth.
>>>> 
>>>> 
>>>> 
>>>> Geoff
>>>> 
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>>> 
>>>> Visit the gallery!  www.tvbf.org/gallery
>>>> user:pw = tvbf:jamaicangoose
>>>> Check new archives: www.tvbf.org/pipermail
>>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>> 
>>>> _______________________________________________
>>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>>> 
>>>> Visit the gallery!  www.tvbf.org/gallery
>>>> user:pw = tvbf:jamaicangoose
>>>> Check new archives: www.tvbf.org/pipermail
>>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>> 
>>> _______________________________________________
>>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>>> 
>>> Visit the gallery!  www.tvbf.org/gallery
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives: www.tvbf.org/pipermail
>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>> 
>> _______________________________________________
>> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>> 
>> Visit the gallery!  www.tvbf.org/gallery
>> user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail
>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
> 
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
> 
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html



More information about the Reflector mailing list