News:


  • July 15, 2024, 06:35:28 AM

Login with username, password and session length

Author Topic: Ringmaster Oldie  (Read 467 times)

Offline Dave Moritz

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 415
Ringmaster Oldie
« on: July 10, 2024, 12:25:41 PM »
Hello to the bros here:

Looking for some advice or perspective on flying this model for fun. It was saved from the dumpster and is older than the hills, with original tissue/dope. I scrounged up a Veco 19 for power. It's scary weak on the wingovers and loops. Here are the stats:
- 32 oz. weight
- 10,500 rpm takeoff
- 5.2 second laps
- 58 feet of .014 stranded
- prop 9 x 3.5 (Top Fite 10" cut to 9")
- Fuel 8-24

I could go through a bunch of permutations but thought I'd check here first. My inclination is that I need more horsies up front (Fox 35 perhaps).

What do you think?

Dave Mo...
Itís a very strange world we live in, Master Jack.Ē (4 Jacks and a Jill)

Online Dave_Trible

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 6220
Re: Ringmaster Oldie
« Reply #1 on: July 10, 2024, 12:34:42 PM »
Yes more ponies always helps.  However that is an awful flat pitched prop too.  Try a 9-5 or 9-6.   That's what we used on a lot of .19s--accept Enya .19.  These can go like a bat out of haties with an APC 9-4.  Another option would be to go with 55' or 56' lines.   I'm flying my Fox .35 classic airplanes on 56' and like it.

Dave
AMA 20934
FAA Certificate FA3ATY4T94

Offline Dave Moritz

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 415
Re: Ringmaster Oldie
« Reply #2 on: July 10, 2024, 07:23:40 PM »
Dave

A couple of very good suggestions there - more prop and shorter lines. Perhaps thatíll do the job.

Many thanks.

Dave MoÖ
Itís a very strange world we live in, Master Jack.Ē (4 Jacks and a Jill)

Offline Brett Buck

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 13838
Re: Ringmaster Oldie
« Reply #3 on: July 10, 2024, 08:09:10 PM »
Hello to the bros here:

Looking for some advice or perspective on flying this model for fun. It was saved from the dumpster and is older than the hills, with original tissue/dope. I scrounged up a Veco 19 for power. It's scary weak on the wingovers and loops. Here are the stats:
- 32 oz. weight
- 10,500 rpm takeoff
- 5.2 second laps
- 58 feet of .014 stranded
- prop 9 x 3.5 (Top Fite 10" cut to 9")
- Fuel 8-24

I could go through a bunch of permutations but thought I'd check here first. My inclination is that I need more horsies up front (Fox 35 perhaps).

What do you think?

Dave Mo...

   9-4 APC!

    A Fox 35 is *not* more horsies, I would guess a Veco 19BB in proper condition and set up correctly is 25% more powerful.

     Brett

Offline Dennis Toth

  • 2020 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4286
Re: Ringmaster Oldie
« Reply #4 on: July 11, 2024, 07:58:54 AM »
Dave,
The Ringmasters like a little bit more speed than you are flyng speed on 58' lines about a 4.8 sec ish lap time. If your Veco 19 is the later BB version it can do the APC 9x4 set for a 2-2-2 run style. If it is the original Veco plain bearing go with the APC 9 x 5-6 still set for the 2-2-2 just on the rich side (use fuel with at least 25% total oil, 50/50 is OK).

Best,   DennisT

Offline Dave Moritz

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 415
Re: Ringmaster Oldie
« Reply #5 on: July 11, 2024, 11:14:07 AM »
Dennis and Brett

My Veco is the BB version, so I take it that a Fox 35 would be a step down. The standard APC 9-4 comes to the rescue again. Thanks, Brett.

Dennis, I wasnít aware this model likes faster laps. Iíll gladly shoot for that number.

Much obliged to both brothers of the ring!

Dave MoÖ
Itís a very strange world we live in, Master Jack.Ē (4 Jacks and a Jill)

Offline Dave Moritz

  • 24 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 415
Re: Ringmaster Oldie
« Reply #6 on: Yesterday at 06:09:32 PM »
Success! The 9X4 APC and 55-feet lines did the trick. In spite of my making two changes at the same time, Iíve got a sweet fly iní model now. You gentsí experience and generosity really helped. Thanks.

Dave MoÖ
Itís a very strange world we live in, Master Jack.Ē (4 Jacks and a Jill)

Offline Brett Buck

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 13838
Re: Ringmaster Oldie
« Reply #7 on: Yesterday at 06:26:06 PM »
Success! The 9X4 APC and 55-feet lines did the trick. In spite of my making two changes at the same time, Iíve got a sweet fly iní model now. You gentsí experience and generosity really helped. Thanks.

Dave MoÖ

   55 foot lines!!! That's got to be crazy short lap times.

    Brett

Offline Gary Dowler

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 1021
Re: Ringmaster Oldie
« Reply #8 on: Today at 01:44:29 AM »
On top of anything Brett tells you to do, Id suggest going back to 60' lines, straighten out any rudder offset and engine offset and try it again.  Rudder offset is counterproductive to maintaining line tension overhead. It hurts more than it helps.  Getting the aircraft to fly as tangent to the circle as reasonably possible is what you want.  Yaw increases drag which kills energy, especially overhead where you need it the most.  Speed is your friend here, which yaw kills.

Gary
Profanity is the crutch of the illiterate mind


Advertise Here
Tags: