Jack E Martin
  • Male
  • Bushnell, FL
  • United States
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Jack E Martin's Discussions

912ULS Cowling Seals

Started this discussion. Last reply by Jack E Martin Apr 5. 2 Replies

Should the radiator and oil cooler be sealed against the cowling, or should there be a gap between the radiator and the cowling?Continue

High CHT

Started this discussion. Last reply by Jerry Griego May 14. 4 Replies

 I have the Zenith supplied FWF, a Rotax 912 ULS, with Zenith provided cowling, radiator, oil cooler, etc.Today while waiting for takeoff my CHT was rising. Has anyone devised additional vents or…Continue

Rotax CHT Sensor replacement

Started this discussion. Last reply by Michael Hage Oct 4, 2022. 4 Replies

I find that Rotax 912ULS CHT Sensors, part 965531, cost $195 each. Has anyone found a more economical replacement?Continue

 

Jack E Martin's Page

Latest Activity

Jack E Martin posted a discussion

912ULS Cowling Seals

Should the radiator and oil cooler be sealed against the cowling, or should there be a gap between the radiator and the cowling?See More
Apr 2
Jack E Martin posted a discussion

High CHT

 I have the Zenith supplied FWF, a Rotax 912 ULS, with Zenith provided cowling, radiator, oil cooler, etc.Today while waiting for takeoff my CHT was rising. Has anyone devised additional vents or baffling to keep the cylinders cooler?See More
Mar 30
Jack E Martin posted a discussion

Rotax CHT Sensor replacement

I find that Rotax 912ULS CHT Sensors, part 965531, cost $195 each. Has anyone found a more economical replacement?See More
Aug 6, 2022

Profile Information

Aircraft Model
STOL CH 750
Project Status
Flying
Building From
Kit
Engine installed (or plan to install)
Rotax 912
Building Experience
Have already built an airplane
Flying Experience
Commercial / CFI
Home Airport (ie. KMYJ)
9FL1

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Comment Wall (8 comments)

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At 9:33am on February 2, 2015, Thomas Palmer said…

Jack,

Flies great!  empty weight 890.  

I also have a 1000 ft strip on my farm.

What did you do with your longeze?

Thomas Palmer

At 10:09am on September 24, 2014, Michael J. Baker said…

Flight home had a 25 mph tale wind it was great flying, Also good talking to you also!!

At 12:04am on August 20, 2014, Dave (Rocky) M Brown said…

I have the 0290 Lycoming and it seems to be working out just fine. Hope yours does as well! Dave (Rocky)

At 1:36pm on August 11, 2014, Ken Koster said…

Not yet up and running.  Engine installation went well, however, the motormount that Zenith provides seems to me to have an excess "P" factor offset.  That makes the cowling difficult to fit.  Also the cowling they provided is requiring a lot of work on the bottom half of the cowling.  Have so far taken a good 2 1/2 inch  wedge cut from the rear to the carb air intake to bring it in to match the firewall.  Will see how that works out. 

 

The 320 E2D dimensions are the same as the 235 except for about a 1/2 " greater width due to larger cylinders.  I have replaced the Lyc starter and generator with SkyTec and that reduced about 15 pounds.  Using a Catto wood three blade prop so am below the 300 pound firewall forward weight that Zenith uses for a limit.

 

Will have more thoughts on the engine installation when all is said and done.  Have been away from the project for over two months due to bilateral knee replacements.

 

Good luck with yours.

 

Ken  

At 8:00pm on July 4, 2014, dan glaze said…

how is it going jack, I need to take a ride on the Goldwing and come and check out your project, im still pounding away when I can find a minute here or there I go out to shop and work a little, slow progress, life keeps getting in the way, take care, Dan-o

At 7:22pm on April 17, 2014, dan glaze said…

jack, e-mail me at    dglaze1958@aol.com , dan

At 7:20pm on April 17, 2014, dan glaze said…

jack how are you ? i just used these peal and stick cable tie blocks to hold my wireing to the front side of the spar leaving slak where the wiring went through the holes in the nose ribs, will try to send you a picture, Dan,   p.s. you can get these tie blocks at NAPA

At 7:00pm on December 16, 2013, dan glaze said…

how are doing Jack, are you making any progress on your 750?  I have both wings done and starting on the control surfaces, life keeps getting in the way and slowing me down, keep in touch, im only about 25 minutes from Howard and just finished a rehab job there a short while back on a older house right there in town,  Dan

 
 
 

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