Speed,Combat,Scale,Racing > Carrier
True Nostalgia Carrier Engines
john vlna:
I believe you are right Paul. I did not fly carrier back then, but when I got into nostalgia I built a Mottin XPC-1 (1969 model ). I used the ST35C. Great combination, good flying model and good engine when set up right.
Dave Rolley:
I played with the Fox PC engine during that period.
Gerry Deneau purchased one of those engine directly from the trunk of Duke’s car at the ‘75 Nats. We went back to the dorm and he promptly took it apart to examine the innards and workmanship. He used it on one of his next models but the overall handling and performance left a lot to be desired.
A ST Mark 4 carb helped the handling a lot. The Fox carb was workable but inferior to the ST carb. Several years later I discovered the OS 4B and 7B carbs. They were great. But by then the the Fox PC engines had been relegated to a box on a shelf somewhere in the basement. Being the pack rat I am, they are probably still there.
During the time when plain bearing engines were required but you could modify the engine, I tried stuffing the ABC P/L from a K&B 5.8 in the Fox case. That didn’t go well. The case was too thin for the larger OD sleeve. I ended up making press in plain bearing slugs to replace the ball bearing in the 5.8. That worked very well but the small bearing surface area only lasted a few runs.
bdt-m:
--- Quote from: Paul Smith on June 21, 2023, 10:03:51 AM ---Hummmm,,
I flew in the 1975 Nats and it looked like ALL ST 35CRC to me. At that time the law of the land was "stock plain bearing throttled engines".
I assembled a Mongoose with one of those Fox Carrier Specials for the local hobby dealer and it just didn't work. That's not to say the others didn't work. Spotty quality was a Fox standard, at least until the Mark III Combat & beyond.
--- End quote ---
Actual results, scores & engines used from 1975 Nat's:
Jr. 1st place 378.15 STC35
Sr. 1st place 394.20 Fox .36PC, and Sr. 2nd place 361.90 McCoy-Testor .35
Op. 1st Place 394.12 STC35, 2nd place 392.60 STC35
All plain bearing engines, NO modifications allowed, and all winning entries in all PC classes got torn down and fully inspected for any modifications.
Note the Jr. & Sr. scores exceed the 3rd place Op. scores and beyond. ACTUALLY....the Sr. score of 394.20 with a Fox.36PC was the highest score of all combined; Jr, Sr, and Op. <=
This was when entries numbered into the high 60 or more count (some years +90), and Jr. & Sr. flights outscored Op. scores. Will never see this occurrence again... y1
C.T. Schaefer:
This whole thread is Nostalgic! I started with an LS tuned 36x made with plain bearing. Worked good enough to compete but fiddly carb. Tried testors .35. Dog. Tuned up a ST .35 and never looked back. Great motor. Used 62%. TS
bdt-m:
--- Quote from: C.T. Schaefer on June 22, 2023, 07:53:17 AM ---This whole thread is Nostalgic! I started with an LS tuned 36x made with plain bearing. Worked good enough to compete but fiddly carb. Tried testors .35. Dog. Tuned up a ST .35 and never looked back. Great motor. Used 62%. TS
--- End quote ---
Yup.... the STC35 was the 'King' of PC in the 70's. The Testor-McCoy .35 was popular in SoCal for many years, yet the STC35 clearly dominated SoCal & National carrier.
Attached pictures of Doug Browns original engine he used at the 75 National's in Sr. PC, Doug got 2nd place in Sr., however; his score would have placed him in 3rd place in Op.; Testors-McCoy .35.
Point; the Fox.36 & McCoy-Testors .35 could be very competitive, however; it took a lot more propeller & setup work than the STC35.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version