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Author Topic: Engine Choices for new Vector 40 ARF  (Read 571 times)

Offline David Ruff

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Engine Choices for new Vector 40 ARF
« on: June 10, 2018, 06:53:49 AM »
So my current choices are:

Brodak 40
OS 35 AX by Randy
The venerable OS LA 46 (BB by Randy)
PA Fox 35 Hi Zoot by Randy
Evolution 36 (front NVA)

Based on power requirements and weight and balance issues, what sage advice can I obtain from the hive mind of Stunthanger?
Retired Army


Offline Motorman

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Re: Engine Choices for new Vector 40 ARF
« Reply #1 on: June 10, 2018, 08:17:59 AM »
I had a Vector 40 ARF with a Brodak 40, match made in heaven. The LA46 has too much power, you'll find yourself reaching for a much smaller venturi and/or running flat rich to slow it down.

 
There will be a sunny day and we will fly our airplanes.

Offline Dan McEntee

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Re: Engine Choices for new Vector 40 ARF
« Reply #2 on: June 10, 2018, 01:24:44 PM »
So my current choices are:

Brodak 40
OS 35 AX by Randy
The venerable OS LA 46 (BB by Randy)
PA Fox 35 Hi Zoot by Randy
Evolution 36 (front NVA)

Based on power requirements and weight and balance issues, what sage advice can I obtain from the hive mind of Stunthanger?

     I would give the AX .35 by Randy a try. it's a smallish case and will make for easier installation and plumbing. I've been considering one of those for my stash  since I read that they are the same basic size as the OS.32 and with Randy's touches should work very well. Next would be the Brodak .40 and if it is getting heavy the LA.46 properly set up for the weight. Save the Randy Hi Zoot Fox for a proper old time or classic airplane.  I'm not a fan of the Evo.36 and would trade/sell it for something else like the others.
  Type at you later,
   Dan McEntee
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Offline Rob Duckering

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Re: Engine Choices for new Vector 40 ARF
« Reply #3 on: June 12, 2018, 02:06:50 PM »
Had a Brodak 40 in the vector I had a few years ago. Great combo.
Duck

Offline Geoff Goodworth

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Re: Engine Choices for new Vector 40 ARF
« Reply #4 on: June 15, 2018, 07:59:33 AM »
I would say Brodak 40.

While I've seen several ARF Vectors flown with the LA 46, I think the nose is too short.

To get a good fit between the nose cone and the spinner, you have to use a spinner with a cup back like the Dubro part because, with the engine hard up on the firewall the FP 35/40 and LA 40/46 crank protrudes.

I decided I wanted to use Brodak spinners and had to add a 1/8" spacer ring to get the fit right after I had already drilled the mounts for the FP 40.


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