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  • November 18, 2019, 02:17:40 PM

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Author Topic: Building a new Super 70s plane  (Read 5917 times)

Offline wwwarbird

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Re: Building a new Super 70s plane
« Reply #50 on: November 01, 2019, 10:57:02 PM »

 Welcome back Randy, looking forward to more progress.  y1
Narrowly averting disaster since 1964! 

Wayne Willey
Albert Lea, MN U.S.A. IC C/L Aircraft Modeler, Ex AMA member

Offline Randy Powell

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Re: Building a new Super 70s plane
« Reply #51 on: November 11, 2019, 01:08:04 PM »
So, a bit more progress. Fitting the jet intakes and cowl. Still haven't figured out how to set up the arming plug and start button
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Online Ken Culbertson

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Re: Building a new Super 70s plane
« Reply #52 on: November 11, 2019, 03:32:21 PM »
... Still haven't figured out how to set up the arming plug and start button
Your layout is similar to mine.  FYI I love the huge bottom hatch.  I put the arming plug in the hatch. I bend the leads on the start button and re-solder to put it right next to the timer.  Since you are going to have to flip it over to change batteries anyway, why not have access to everything.

Ken
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Offline Randy Powell

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Re: Building a new Super 70s plane
« Reply #53 on: November 11, 2019, 06:55:15 PM »
You've got about 3 times the space. It's more figuring out where to put the battery plugin. I'm using Dean's bulkhead mounts.
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Online Bob Hunt

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Re: Building a new Super 70s plane
« Reply #54 on: November 11, 2019, 07:15:43 PM »
You are bringing back great memories, Randy, and a few nightmares... Fitting and carving the intakes as I remember was a challenge.

You are doing a fantastic job! (Is anyone here surprised?)

Later - Bob Hunt

Offline wwwarbird

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Re: Building a new Super 70s plane
« Reply #55 on: November 11, 2019, 09:36:10 PM »
Still haven't figured out how to set up the arming plug and start button

 That's easy, the arming plug screws into the cylinder head and the start button is on your starter. Glad I could help.  VD~
Narrowly averting disaster since 1964! 

Wayne Willey
Albert Lea, MN U.S.A. IC C/L Aircraft Modeler, Ex AMA member

Online Ken Culbertson

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Re: Building a new Super 70s plane
« Reply #56 on: November 12, 2019, 12:37:37 AM »
You've got about 3 times the space. It's more figuring out where to put the battery plugin. I'm using Dean's bulkhead mounts.
You may be right, I kept the pipe tunnel in the design so I probably have more room at the bottom.  I used the same concept on a converted ARF Nobler and got both the timer and the arming plug into the cowling leaving the entire tank compartment for the battery with the esc between the mounts under the battery.  Still the most I could fit was a stubby 4s.  Turnegy makes a rather thin 4s and 5s in there "Nano" line that would probably fit in around the 3000 - 3300 size.  Not as light as the Thunderpower but they perform well.

I have gone to placing the esc into the wing area behind the battery to keep it from forcing cooling vents in the top and to move some weight closer to the CG.  I was tired of having to add tail weight.  Hopefully in what is left of my usable lifetime we will have a battery that doesn't weigh so much and is smaller.

It is hard with the "Classics"/N30's to find room for a decent size battery.

I absolutely love the plane so far, even if you aren't going to paint it as a Weasel!

Ken
« Last Edit: November 12, 2019, 06:20:22 AM by Ken Culbertson »
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Offline Randy Powell

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Re: Building a new Super 70s plane
« Reply #57 on: November 13, 2019, 10:55:41 PM »
Thanks for the nice comments. Glad I'm causing Bob some harsh flashbacks. It's a fun plane to build overall. Lot of challenges but hey, that's why we do this stuff.
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Offline wwwarbird

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Re: Building a new Super 70s plane
« Reply #58 on: November 14, 2019, 08:12:42 PM »
It's a fun plane to build overall. Lot of challenges but hey, that's why we do this stuff.

 Fun to watch people build these designs that can do them justice too.  y1
Narrowly averting disaster since 1964! 

Wayne Willey
Albert Lea, MN U.S.A. IC C/L Aircraft Modeler, Ex AMA member

Offline Randy Powell

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Re: Building a new Super 70s plane
« Reply #59 on: Yesterday at 04:51:50 PM »
Still working on pieces. Carving and fitting the air intakes and drop tanks. Bob had an evil turn of mind when he designed this dude. Sill messing with shapes. Started on the flaps, too. Decided to finish much of the front of the air intakes before mounting them. Later it will be too big a pain to get in there. Still fitting electronics. Another joy.
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