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  #41  
Old 05-12-2022, 08:35 AM
Northernliving Northernliving is offline
 
Join Date: May 2005
Location: Boston, MA
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Quote:
Originally Posted by sailvi767 View Post
We added the B&C 40 amp to our Rocket and deleted the normal belt driven alternator. So far it has been perfect. Eliminating the heavy conventional alternator seemed like a no brainer. I know several others who have gone with a pad mount as their only alternator and had similar success. Had I known about this product I probably would have used it instead of the B&C. If I have a issue with the B&C this will probably be the replacement. With modern lighting and avionics many RVís are carrying extra weight producing amps they simply donít need.
If you want a nice weight reduction and better lighting this product along with modern lights is a great modification.
G
I did the same thing - went to a pad mount for my day vfr RV8. No regrets at all.

Bill, this looks really nice! At what RPM will this start generating power? The B&C pad mount pics up around 900-1000 rpm. How does yours compare?
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  #42  
Old 05-12-2022, 08:54 AM
monkworkz monkworkz is offline
 
Join Date: Aug 2021
Location: San Diego
Posts: 34
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Quote:
Originally Posted by Northernliving View Post
I did the same thing - went to a pad mount for my day vfr RV8. No regrets at all.

Bill, this looks really nice! At what RPM will this start generating power? The B&C pad mount pics up around 900-1000 rpm. How does yours compare?
You'll get 15 amps at around 1000 RPM, over 1800 you get 30 amps.

Bill
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  #43  
Old 05-17-2022, 08:57 PM
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johnbright johnbright is offline
 
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Hi Bill,

Question, does the generator run at the RPM of the coupling or is there a gearbox inside to increase RPM. A question from the Aeroelectric List.
.
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  #44  
Old 05-17-2022, 10:41 PM
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Toobuilder Toobuilder is offline
 
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Location: Mojave
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Generator is direct drive to the spline coupling.
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  #45  
Old 05-17-2022, 11:18 PM
monkworkz monkworkz is offline
 
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Default Direct Drive

Yep, it's direct drive, the only thing between the generator shaft and the vacuum spline gear is a shear coupling.

Bill
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  #46  
Old 05-18-2022, 10:20 AM
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Veetail88 Veetail88 is offline
 
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Location: Hales Corners, WI
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Hey Bill,

Is there any plan to make a belt drive version of this? I currently run a B&C dynamo on my vacuum pad and it's been trouble free for 900 hours.

The 60 amp alternator hanging on the front from the folks that buy the cheap version of the ND alternator and make it "aviation grade" I'd LOVE to replace with a better mouse trap! (and I actually do not need 60 amps...) The thing has an intermittent habit of tripping the field circuit that is annoying. It'll go for months just fine, then it'll trip a dozen times within a couple flight hours.

As I'm heading for an instrument rating I'll need to do something with that problem being an all electric airplane and all.
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  #47  
Old 05-18-2022, 02:56 PM
monkworkz monkworkz is offline
 
Join Date: Aug 2021
Location: San Diego
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Default Belt Drive

Quote:
Originally Posted by Veetail88 View Post
Hey Bill,

Is there any plan to make a belt drive version of this?
Hi Jesse,

Yes, I am working on a belt driven version. There are some mechanical hurdles so don't expect anything for quite some time but it is my intention to make one that runs on the front of the engine.

Thanks,

Bill
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  #48  
Old 05-18-2022, 03:19 PM
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Veetail88 Veetail88 is offline
 
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Location: Hales Corners, WI
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Quote:
Originally Posted by monkworkz View Post
Hi Jesse,

Yes, I am working on a belt driven version. There are some mechanical hurdles so don't expect anything for quite some time but it is my intention to make one that runs on the front of the engine.

Thanks,

Bill
Great! I'll watch for it! And when you get the lightweight aluminum brackets made, get them anodized red! Gotta look cool!
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  #49  
Old 05-19-2022, 04:40 PM
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Walt Walt is online now
 
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Install was easy, getting the larger B&C off required removing the mag for access. So far I like what I see and think it will be a winner. I was surprised how quickly it picked up the load compared to the B&C I removed. Much more compact and weight loss of about 3-4 lbs..
Voltage setting for stby use is perfect at 14.2



Added pic below for a little more reg install detail.
Used a 2 conductor shielded wire for the enable switch as suggested in the IM.

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Last edited by Walt : 05-19-2022 at 08:02 PM.
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  #50  
Old 05-19-2022, 04:45 PM
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catmandu catmandu is offline
 
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Location: Sierra Nevada
Posts: 1,073
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Walt, is that just a double Adel Clamp on the engine mount for the electronics? I do like that if so.
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