Notices
Classic RC Pattern Flying Discuss here all pre 1996 RC Pattern Flying in this forum.

OS 61 Hanno Special question

Old 07-14-2022, 04:09 PM
  #51  
babbott78
 
Join Date: Jan 2007
Location: SydneyNSW, Sydney, AUSTRALIA
Posts: 127
Received 9 Likes on 7 Posts
Default

Originally Posted by TheEdge
Great to see this thread gain some new material.

Sharing this rare motor that I saw listed which may be of interest to some on here.

https://www.ebay.com/itm/144644742458
very nice!!
Old 07-14-2022, 04:45 PM
  #52  
babbott78
 
Join Date: Jan 2007
Location: SydneyNSW, Sydney, AUSTRALIA
Posts: 127
Received 9 Likes on 7 Posts
Default

Originally Posted by bjr_93tz
Yes, I've been in the game for a few years now. Was about 7.25lbs at the time, super light and I wouldn't do a snap roll with it anymore. Still with Hanno, but the pump has 140RX pump swap. It's still running on the replacement piston/liner after the original peeled but it doesn't run very often. I did get one of those Jett piston/liner and two of the ones from Graham Gardener(?).

I probably should have jumped into the pump kit that was being offered a while back, but it's really been tucked away out of sight out of mid...
i wasn’t aware there was a jett piston liner set? How do you get them? I’ve got the Brian Gardner one
Old 07-14-2022, 07:53 PM
  #53  
bjr_93tz
 
Join Date: Dec 2006
Location: ToowoombaQLD, AUSTRALIA
Posts: 1,026
Likes: 0
Received 16 Likes on 14 Posts
Default

Originally Posted by babbott78
i wasn’t aware there was a jett piston liner set? How do you get them? I’ve got the Brian Gardner one
Silly me got some names mixed up, it was in 2008 and it was made by Henry Nelson. It's an AAC liner so it's much lighter than an ABC one. I think the port timing might be tweaked too (for better or worse?) and whatever other "improvements" they claimed necessary.

So not just a reverse engineered clone (again, for better or worse?). I've never run it..

Taking Orders For Hanno Piston/Liner Sets
Old 07-14-2022, 08:23 PM
  #54  
babbott78
 
Join Date: Jan 2007
Location: SydneyNSW, Sydney, AUSTRALIA
Posts: 127
Received 9 Likes on 7 Posts
Default

Originally Posted by bjr_93tz
Silly me got some names mixed up, it was in 2008 and it was made by Henry Nelson. It's an AAC liner so it's much lighter than an ABC one. I think the port timing might be tweaked too (for better or worse?) and whatever other "improvements" they claimed necessary.

So not just a reverse engineered clone (again, for better or worse?). I've never run it..

Taking Orders For Hanno Piston/Liner Sets
the Nelson ones are supposed to be good! Wish I had have grabbed one. The Brian Gardener ones look good too, but are ABC, they are also tweaked and not an exact copy.

Would love to see your Slingshot flying!
Old 07-14-2022, 09:27 PM
  #55  
bjr_93tz
 
Join Date: Dec 2006
Location: ToowoombaQLD, AUSTRALIA
Posts: 1,026
Likes: 0
Received 16 Likes on 14 Posts
Default

Originally Posted by babbott78
the Nelson ones are supposed to be good! Wish I had have grabbed one. The Brian Gardener ones look good too, but are ABC, they are also tweaked and not an exact copy.

Would love to see your Slingshot flying!
Apologies for the video quality, it's the only video I have of it I ripped from a Hi8 camera years back. Built it in '92, competed '93 and '94, video taken in taken in 2005. Dad was just tooling around with it but he did give it the berries at the 3min mark. Probably had the 12x11apc on it and 5% nitro, about 1500ft elevation and it clearly didn't have unlimited vertical despite the low weight. We never tuned it to the ragged edge and flogged it with big nitro percentages for weekend flying.

The following users liked this post:
V1650 (07-19-2022)
Old 09-02-2022, 12:49 PM
  #56  
babbott78
 
Join Date: Jan 2007
Location: SydneyNSW, Sydney, AUSTRALIA
Posts: 127
Received 9 Likes on 7 Posts
Default

Pump kits are now being shipped, and they are quality!! Camilo has done a fantastic job




Old 07-28-2023, 06:00 AM
  #57  
Brice2
Junior Member
 
Join Date: Jul 2023
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Hi babbot78,
I have a Hanno Special I that I want to revive. I would like to purchase one of those kits.
Are they still available and who do I contact ?
I live in Canada.
Thanks

The following users liked this post:
babbott78 (07-28-2023)
Old 07-28-2023, 01:46 PM
  #58  
babbott78
 
Join Date: Jan 2007
Location: SydneyNSW, Sydney, AUSTRALIA
Posts: 127
Received 9 Likes on 7 Posts
Default

Originally Posted by Brice2
Hi babbot78,
I have a Hanno Special I that I want to revive. I would like to purchase one of those kits.
Are they still available and who do I contact ?
I live in Canada.
Thanks
no problem, if you reach out to Camilo on rcgroups (you will see the hanno pump thread), you should be able to grab a pump kit.
Old 07-28-2023, 01:52 PM
  #59  
Brice2
Junior Member
 
Join Date: Jul 2023
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by babbott78
no problem, if you reach out to Camilo on rcgroups (you will see the hanno pump thread), you should be able to grab a pump kit.
Thanks Babbot78.
Good news.
Enjoy your flying season.
Old 07-28-2023, 02:20 PM
  #60  
babbott78
 
Join Date: Jan 2007
Location: SydneyNSW, Sydney, AUSTRALIA
Posts: 127
Received 9 Likes on 7 Posts
Default

Originally Posted by Brice2
Thanks Babbot78.
Good news.
Enjoy your flying season.
hope you get the Hanno going!! Myself and my really good friend Ben, just got into F3A with our 1991 Lotus 5’s running Hanno’s, so they can still perform




The following users liked this post:
HangarRash (07-28-2023)
Old 07-28-2023, 02:33 PM
  #61  
Brice2
Junior Member
 
Join Date: Jul 2023
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

I wish we had some F3A fliers up here in Canada. Unfortunately, it is pretty dead.
This engine was in an Aurora, built in 1989 and lost in 2012 due to the right aileron jamming to one side in mid air.
t has had at least 1200 flawless flights.
Unfortunately, it sat in the garage for about 10 years without running.
After priming it, it started right away, idled beautifully but would not hold full throttle. (No bearing problems !)
This is why I suspect the membrane in the pump.
It brings back a lot of memories.
Enjoy your F3As.
Brice

Old 07-29-2023, 12:05 PM
  #62  
flywilly
My Feedback: (121)
 
Join Date: Feb 2002
Location: glen allen, VA,
Posts: 2,257
Likes: 0
Received 28 Likes on 27 Posts
Default

Hi Brice,
At full throttle did the engine surge, die or run erratically? A few things to try while you wait for your pump rebuild kit:
1) take the fuel line off the carb, but leave attached to the pump. Gently fill the pump with fuel through the inlet nipple until it drips from the line to the carb, then attach the carb line to the inlet nipple (closed loop) and let the pump ‘soak’ for a few days. Flush and try running again.
2) make sure all the head bolts and especially the back plate bolts are tight.
3) remove the backplate pump and check for clogs/ gum in the pump holes in the backplate.
4) check/ replace the needle valve ‘O’ ring.
I’ve run Hannos for 30 years (more than 7,000 logged flights), including several that I acquired used and have always managed to use the original pump. Of course, there was no rebuild option as OS did not sell pump replacement parts.
Good luck with your engine! The Hanno is one of my all time favorites, especially with a Nelson or Gardner piston/ sleeve.
Will
Old 07-29-2023, 04:57 PM
  #63  
Brice2
Junior Member
 
Join Date: Jul 2023
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Hi Will,
This engine idles very well and run without missing a bit up to about 75% of max throttle. When the throttle is finally wide open, the engine cuts out cleanly after a second or so. It will not carry on running even if the throttle is rapidly closed and re-opened somewhat. When the glow battery is reconnected, it will start again at the first flip of the prop. This is why I think that it is the membrane of the pump.
I took the carb apart and changed the "O" rings. I had bought a lot of carb parts 12-15 years ago, but nothing was available for the pumps.
Thanks for your advice. I will definitely try to clear the gum out of the pump.
Have a good weekend.


Last edited by Brice2; 07-29-2023 at 05:02 PM. Reason: added some info.
Old 07-30-2023, 01:24 PM
  #64  
Brice2
Junior Member
 
Join Date: Jul 2023
Posts: 5
Likes: 0
Received 1 Like on 1 Post
Default

Hi again Will,
Problem solved !
I had forgotten one thing :
When a standard RC engine is too lean at WOT, it will slow down, heat up like crazy and eventually cut out. When it is too rich it will sputter and again cut out.
With a pump engine, when it is way to rich, it will just die out straight away.
When I cleaned the carb, I replaced the main needle valve at 2 1/2 turns. I found my notes and on this carb, it is supposed to be between 1/2 and 3/4 turn.
I cleared the pump as discussed and tried it again with the correct needle setting.
Voila !
Sweet transition and about 10200 rpm with a 13x9 APC pattern.

Thanks for your help.

Now I just have to build a new pattern plane. Ouch..................
Old 07-31-2023, 03:44 PM
  #65  
flywilly
My Feedback: (121)
 
Join Date: Feb 2002
Location: glen allen, VA,
Posts: 2,257
Likes: 0
Received 28 Likes on 27 Posts
Default

Great news! 10,200 on an APC 13x9 is right on the money.
Hopefully you have a kit in your ‘stash’. There are quite a few kits available. Hangar One has some nice choices. There’s always scratch building.
Good luck!

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.