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NCS

Home NCS Treetown Free Stuff More C/L Links Contest Calendar Photo Album Searches, etc.

Home
NCS
Treetown
Free Stuff
More C/L Links
Contest Calendar
Photo Album
Searches, etc.


Join the NCS. Send your Name, Address and AMA number to:
Navy Carrier Society, 225 W. Orchid Lane, Phoenix, AZ. 85021
Membership is $6.00 (USD) per year
Non US membership is slightly higher.
NCS

The Navy Carrier Society is the AMA recognized Special Interest Group for C/L Carrier flyers. There are 3 official carrier events flown around the United States, Class I, Class II and Profile Carrier. There are also several unofficial events, Sportsman Profile Carrier, .15 Carrier, Sig Skyray .35 Carrier and Nostalgia Carrier. Almost all of the events are scored and flown the same way.

Click here to download the Navy Carrier Scoring Program for Windows.

Click here for .15 Carrier Rules

  • 1. High Speed Score. The model is timed from a standing start until it has flown 1/2 mile, usually 7 laps. The time is converted to mph and that is the high speed score.
  • 2. Low Speed. The pilot signals and the next lap begins the low speed flight. The object is to fly as slow as possible during this period without stopping, touching down, stopping forward motion or exceeding 60 degrees nose high attitude (3 warnings are given on 60 degrees). The time is again converted to mph and the score is calculated as 10 X ( High Speed / Low Speed)
  • 3. Scale Points. Profile and Sportsman Profile Carrier award 10 points if the model closely resembles a Navy Carrier plane. Class I and II award 100 points if the model is built to within +/- 5% of scale of a Navy Carrier plane.
  • 4. Landing Points. The pilot signals intent to land on the next lap the landing phase begins. If the pilot lands in a normal attitude, stopped by the arresting hook then 100 points are awarded. If the model arrests with the model in other than a normal attitude then 50 points are awarded. If the model arrests but flips over on it's back or drops 1 wheel off the deck then 25 points are awarded.

The is a wide diversity of scores earned. High speeds can range from around 70 mph all the way to 120 mph. Low speeds can get as slow as 4-8 mph average. Many times it is difficult to judge whether or not the model is stopped.

Control surfaces and throttle.  Our models tend to be a bit more complex than the typical C/L model.  A typical model will have up and down elevator, throttle and tail hook.  Other controls can be added such as flaps, ailerons and rudder.   With the exception of the elevator and throttle, the other controls are usually only deployed once, after the high speed.  They lock into position and stay there.

Throttle control.  There are two popular ways of providing throttle control, using a mechanical or an electronic servo.

  • The mechanical system is accomplished by using a 3-line bellcrank and 3-line handle.  This system provides up and down elevator, just like a standard 2-line system.  It also adds an additional control throw used to control the throttle.   This throttle control fore-aft movement is accomplished by actually letting the bellcrank move back and forth about 1" from the handle end of the system.  Sound complicated? It is, but the bellcrank and handle do all the work for you and are commercially available.  The handle and bellcranks are manufactured by Brodak and sold by them and Sig.  Check with your hobby store.  There are several styles of bellcranks, I prefer the long span ones.  Make sure that when you buy one, that it is correct for your carburetor.
  • Electronic controls.  Fred Cronenwett, from Southern California has been championing the electronic control system.  I have flown one of his planes and it works very nicely.  You still control elevation with the handle, but throttle, rudder, hook, flaps, aileron, retracts, etc. can be controlled with signals sent up the wires. 
  • Whichever way you control everything, the secret is to make everything work and work when you want it to.
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