RCU Forums - View Single Post - Another 2 stroke to 4 stroke question please
Old 07-09-2022 | 04:54 PM
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Jesse Open's Avatar
Jesse Open
 
Joined: Mar 2018
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From: 30 Miles North of Canada Border
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This comment:

Originally Posted by Jesse Open
Absolutely a great match. That four stroke can swing a nicely sized prop, makes excellent power and sounds fantastic while doing it.
Go four stroke!


I sold 50 packs of Esaki silk a few months ago for $5/pack!
Was a response to this posting:


Originally Posted by summerwind
I really tried searching for an answer to this, but topics that come up seem to go sideways after 6-10 posts and no real answer comes from it.

So to explain what I am looking into is an engine to fly a Top Flite SE5a.
Plane has a 53" span and is around 1,000 square inch wing area.
Dave Platt designed it back in the late 60's or early 70's when .60 engines were loop scavenged. Most notable were the K&B 61. Webra .61, OS 60 and Super Tigre 60 engines that were quite powerful for their time.

I am pretty much decided on the OS FSa 72II 4 stroke mainly because it fits under the cowl...............Yes I know the price is absurd, but this will be one of the last 5 planes I build and fly as I am 67 now and just don't see letting cost ruin my funAttachment 2271977

I also haven't been active in RC since 2012 so I do not know how much power modern 4 strokes put out these days.

Am I at least on the right runway with thinking the OS 72 will have the power needed to fly this plane vs an old 2 stroke 60 of the time era?

Really appreciate any input you all might be willing to share,
Mike
Not about your questions, Sorry


Originally Posted by 2W0EPI
The thing is, you comparing a 4 stroke nitro to a 4 stroke gas, this isn't a good indicator,
Yes exactly, as intended. The comment pertained directly and only to the cost of converting two basically similar engines.
In that case, a perfectly good example.
The comment was not about the cheapest route possible.


Last edited by Jesse Open; 07-09-2022 at 05:03 PM.