December 1984 -- NavComp Version 2.0 for at special price of only $34.95 for CompuServe members! Dear Customers, It has only been eight months, but already, The Preble NavComp is a big success. (See May 1984 review in PCM). We have had orders from all over the world. Many have sent glowing complimentary letters. Naturally, we are always happy to receive letters of compliment but we listen even more to suggestions to make our products better! It is with this in mind, that we set out to improve NavComp Version 1.0. We proudly announce NavComp Version 2.0. Both subpackages have been rewritten, enhanced and optimized for low memory requirements. The instruction manual has been improved as well. New features include: - More compact code leaving you more room for stored flight plans! - Faster execution times! - More compact flight plans! NavComp now generates navigation logs in a tabular format! That means you can have a large flight plan with more than a dozen check points all on one sheet of paper! No more cockpit confusion! That also means you can store up to 500% more flight plans in the computer's memory! - New error correcting features! While entering flight data, you can back up to several previous entries to correct a mistake. There is no longer any need to restart the whole program! - New instruction manual You could expect that all these improvements would mean a higher base price for our product--Not at all! NavComp Version 2.0 still sells for only $49.95. But here is the best part. If you are a CompuServe User and mention this message, you are entitled to purchase the updated version 2.0 for only $34.95 until February 28, 1985! This low price covers an entirely new package including new program cassette and new instruction manual! Remember, all of our products are unconditionally guaranteed. Return undamaged for full refund within 30 days if not completely satisfied. The Preble NavComp V2.0 and the Radio Shack Model 100 have a marriage made FOR the heavens! Order From: Dr. Preble's Programs; 6540 Outer Loop; Louisville, KY 40228 (502) 966-8281 Visa & MasterCard accepted. Include $1.50 for shipping and handling. Best Wishes, Dr. L. D. Preble ======================================= = Overview The Preble NavComp is the most powerful Model 100 software tool available for the general aviation pilot. The package consists of two programs. The first, NavPln, is used during flight planning. The second, NavCom, travels with you providing a constant interactive update on position and vital statistics. A Radio Shack Model 100 (TM) with at least 16K of RAM is required. The Preble NavComp package was developed by a Certificated Flight Instructor with a background in psychology and computer science. Literally hundreds of hours were spent making these programs both useful and "User Friendly. " The Preble NavComp is the most exciting Flight tool developed for the premier of portable computers. NavPln Features. NavPln generates a complete Navigation Log and can dump the Navigation Log to any device the Model 100 supports, including Cassette and RAM Files. NavPln can also save the entire route of flight in a separate file for repeat usage; only new weather, altitude and performance data need be reentered. NavPln handles all the standard navigation data, computing the effects of Density Altitude, Wind Drift and Magnetic Variation on True Airspeed, Ground Speed, Headings, ETA's and ETE's. NavPln lets you input additional VOR data to be used with NavAid in computing precise distances and ground speeds. NavPln can calculate the appropriate point to begin descent and mark it with a VOR intersection. NavPln intelligently compensates for changes in velocity due to climbs and descents. NavPln is self-prompting and easy to use even though the program code itself is extremely complex. Many aids to error free input are included. NavAid Features. Other home computers may have "Flight Planning Programs" but none until now have been able to take advantage of the unique portability and features of the Radio Shack Model 100. NavAid keeps track of your Flight Progress in Real Time. NavAid lets you modify Flight Data at will to account for unforseen variables. NavAid uses the Model 100's unique graphics capabilities to provide an incredible real time analog display of: Position, Fuel Burn and more! Even the most expensive specialty "Flight Computers" can not offer features like these. NavAid can be "put to sleep" in midflight to conserve battery power but never miss a beat! The internal clock keeps ticking to restore current flight data when the Model 100 is again turned on. It is even possible to temporarily exit NavAid to BASIC for some quick calculations in direct mode. NavAid audibly and visually gives warning if a flight is extended into the last remaining hour of fuel. NavAid makes extensive use of the interrupt driven Function Keys to provide functions like Check Point Passage, Approaching Intersection Display, Incremental Position Modification, Ground Speed Update and Position Modification by VOR Reference. NavAid alternatively provides a cursor selected menu of flight functions and data. NavAid answers the perinneal passenger questions: "How much farther do we have to go and how long before we get there?" Even a DME can only navigate to the next checkpoint. NavAid continually fine tunes the Ground Speed and position to give accurate information on time and distance to final destination as well as the "next checkpoint. " NavAid is smart enough to keep you from punching the wrong buttons. Intelligent coding prevents you from misinforming the computer that you passed a checkpoint in 5 seconds at Mach 10. (Hmm, that could have been interesting. ) Order From: Dr. Preble's Programs; 6540 Outer Loop; Louisville, KY 40228 ( 502) 966-8281 Visa & MasterCard accepted. Include $1.50 for shipping and handling. Best Wishes, Dr. L. D. Preble