Jump to content


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Ultimate capacity yet portable mount: AP 2400GTO ?

This topic has been archived. This means that you cannot reply to this topic.
32 replies to this topic

#26 RogerRZ

RogerRZ

    Whatta you lookin' at?

  • *****
  • Posts: 3143
  • Joined: 09 Jan 2006

Posted 03 March 2011 - 09:49 AM

One also has to put himself in a mount manufacturer's shoes.

Is there a market for a mount that can handle an 8" f/20 refractor. I don't know how many are actually out there, and of them how many of them would spring for a $20000 mount?

#27 dothead

dothead

    Viking 1

  • -----
  • Posts: 923
  • Joined: 13 Aug 2008

Posted 03 March 2011 - 12:53 PM

yes of course, nothing to be said against this.

But let's consider you own a CDK 20 at a private observatory.

The AP 1200 (capacity 140lbs) would struggle with this scope (140lbs OTA) and auxilliary equipment.

The AP 3600 (capacity 300+lbs) would seem to somehow be "overkill" for this setup.

The "AP2400" (capacity 200ish lbs) would be the ideal mount for this scope, and cost less than the 3600.


Regards,

Ralph

#28 wz2

wz2

    Most Boring Astronomer...

  • -----
  • Posts: 277
  • Joined: 30 Jul 2010

Posted 03 March 2011 - 07:12 PM

I don't think any manufacturer wants to proliferate mounts in this price/capacity range. There's just not a big enough market.

Plus you're talking "private observatory" and CDK20 class instruments. A CDK20 is $32k for the scope alone. What's a comparable aperture RCOS go for, $50k? With scope, mount, dome, etc you're easily looking at rigs in the $100k range +.

I suspect the price difference between a hypothetical "AP2400" and the AP3600 would be relatively immaterial to a player in this range. Hence, not much motivation for AP to market one.

Just my opinion.

Chris

#29 dothead

dothead

    Viking 1

  • -----
  • Posts: 923
  • Joined: 13 Aug 2008

Posted 03 March 2011 - 07:58 PM

so, the poor ol' 8" f/20 refractor... :bawling:

#30 wz2

wz2

    Most Boring Astronomer...

  • -----
  • Posts: 277
  • Joined: 30 Jul 2010

Posted 03 March 2011 - 08:36 PM

Ralph,

Won't this 8" f/20 scope create quite the torque moment arm across your broad German shoulders as well? It will be at least 14' long I'm assuming. You're looking for a portable mount so I'm thinking the whole set up will be portable, including scope?

Chris

ps Been to Munich - drank beer at Oktoberfest (lots) - it was fun

#31 dothead

dothead

    Viking 1

  • -----
  • Posts: 923
  • Joined: 13 Aug 2008

Posted 03 March 2011 - 08:57 PM

will transport tube and lens separately... (get modular!)

shall be "movable" until I'll manage to build a home for it...

it can be done (see Ziggy's 9" f/15 Clark).

done too many tracks in Nepal and have seen the Sherpas strut their stuff...


Ralph

#32 wz2

wz2

    Most Boring Astronomer...

  • -----
  • Posts: 277
  • Joined: 30 Jul 2010

Posted 03 March 2011 - 09:21 PM

Ralph,

Won't this thing also need a rather large (tall) tripod or pier to keep the focuser / eyepiece from scraping the ground?

Chris

Trekked Nepal myself. Flew into Lukla (before they paved the runway). I'm dating myself. :)

#33 dothead

dothead

    Viking 1

  • -----
  • Posts: 923
  • Joined: 13 Aug 2008

Posted 04 March 2011 - 01:39 PM

yes - I'll go for a height-adjustable pier (ala Pier-Tech), offered by a local company (normally for industrial applications):

minimum height: 60"
maximum height: 100"

With the additional 15" height of the mount, the eyepice will be about 25" above the ground when OTA is pointed at zenith.



Regards,

Ralph


CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.



Recent Reviews


Imaging/Sketching Contest






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics