Notices
RC Gliders, Sailplanes and Slope Soaring Discuss rc gliders,rc sailplanes and slope soaring in this forum. Thermaling techniques, airfoils, tips, etc

Pedal Launcher

Old 12-05-2001, 08:14 PM
  #1  
SilentFlyer
Junior Member
Thread Starter
 
Join Date: Dec 2001
Location: San Jose, CA,
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default Pedal Launcher

Has anyone ever used a Pedal Launcher for launching a 2M glider from a Hi Start? I'm interested in hearing the pros and cons.
Old 12-05-2001, 10:36 PM
  #2  
Walt-RCU
Junior Member
 
Join Date: Dec 2001
Location: Coolidge, AZ
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Default Pedal Launcher

I don't know anything about a pedal launcher. I assume it's a release device. My field really doesn't surpport a Hi-Start. I use a small engine on a power pod which is a lot less gear to take to the flying field. The added weight simply acts as ballest.
I'm sorry but I can't see any advantage to using a pedal launcher.
Walt
Old 12-06-2001, 12:36 AM
  #3  
greg-RCU
Senior Member
 
Join Date: Dec 2001
Location: Gibsons, B.C.
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts
Default Hi start release

An advantage may be to get two hands on the transmitter. Having the plane come off the ground might be fun - or not. The problem would be that a Hi-start has so much tension at release that the device would be problematic and hard on the plane at the points it's holding to - tail?

If your talking about a Winch rather than a Hi-start then, I've read that, you can use them to launch a 2M plane provided your either careful with the pedal or have a strong enough wing. Many 2M planes won't take the kind of pull a Winch can deliver.

Walt, My field is small too. I just use a smaller Hi- start. Total unstreached length is under 50Meters or so. Much more convienient than batteries etc. cheaper too.
Old 12-06-2001, 01:39 AM
  #4  
SilentFlyer
Junior Member
Thread Starter
 
Join Date: Dec 2001
Location: San Jose, CA,
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default Pedal Launcher

Any Hi Start can be adapted for use with a pedal launcher by simply adding a short length of line and another ring to the existing ring. The original ring is attached to the pedal launcher and takes all the tension. The new (second) ring is attached to the tow hook on the glider.

The advantages I see in using a pedal launcher with a Hi Start are (i) the pedal launcher takes all the tension OFF the glider while you are waiting for the right moment to launch i.e. a thermal passing through and (ii) you have both hands on the Tx.

However, the disadvantage I see is that you are launching off the ground which might be a bit unpredictable and you are losing a few feet in initial launch height!

The only way you could use a pedal launcher with a winch would be to attach the ring to the tow hook only as there is no problem with tension (until you step on the winch pedal). The only real benefit is that you would have both hands on the Tx.
Old 12-06-2001, 07:59 PM
  #5  
SilentFlyer
Junior Member
Thread Starter
 
Join Date: Dec 2001
Location: San Jose, CA,
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Default Pedal Launcher

There's an article on pedal launchers in the Sept 2001 issue of S&E Modeler. It describes how to construct an adjustable one from PVC pipe.

I'm interested in hearing from anyone who has built and tried it.

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 - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.