Making of a dual purpose Cruzer. STOL and Speed in one aircraft (but not at the same time) - Zenith Aircraft Builders and Flyers2024-03-29T13:47:04Zhttps://zenith.aero/forum/topics/making-of-a-dual-purpose-cruzer-stol-and-speed-in-one-aircraft?commentId=2606393%3AComment%3A694838&feed=yes&xn_auth=nohi Jonathan, what's the diame…tag:zenith.aero,2023-08-04:2606393:Comment:9100992023-08-04T02:55:32.213ZRonald Fullerhttps://zenith.aero/profile/RonaldFuller
<p>hi Jonathan, what's the diameter of the nose tire? I found that it's an Aero Classic 8.00-6, but no info on outside diameter...</p>
<p>hi Jonathan, what's the diameter of the nose tire? I found that it's an Aero Classic 8.00-6, but no info on outside diameter...</p> Now that I have had a chance…tag:zenith.aero,2020-04-24:2606393:Comment:7188282020-04-24T17:54:48.569ZJonathan Fayhttps://zenith.aero/profile/JonathanFay
<p>Now that I have had a chance to fly in this setup for a while and play with the prop pitch. I have a setup that works reasonably well to balance out between cruise and climb. At Normal cruiser gross weight (1440) I get better than 1000FPM climb from 600' airport elevation, and cruising long distance at 6500-10500ft altitude I average 100 KTAS with fuel burn ranging from 5 - 5.9 GPH depending on altitude. I lose power higher up, but TAS stays about the same. Once I have managed 104KTAS on…</p>
<p>Now that I have had a chance to fly in this setup for a while and play with the prop pitch. I have a setup that works reasonably well to balance out between cruise and climb. At Normal cruiser gross weight (1440) I get better than 1000FPM climb from 600' airport elevation, and cruising long distance at 6500-10500ft altitude I average 100 KTAS with fuel burn ranging from 5 - 5.9 GPH depending on altitude. I lose power higher up, but TAS stays about the same. Once I have managed 104KTAS on 5.7GPH burn for a 3+ hour flight. </p>
<p>I have not had a chance to try it out in hot weather in this configuration, so that might change things. In the end I think with a constant speed prop this would be the perfect compromise for me of range, efficiency, fun and back-country capability.</p>
<p></p> I don't have that information…tag:zenith.aero,2019-12-02:2606393:Comment:7019742019-12-02T16:32:03.376ZJonathan Fayhttps://zenith.aero/profile/JonathanFay
<p>I don't have that information off-hand. You might call Roger and check. I will have to visit the hangar and measure.</p>
<p></p>
<p>I don't have that information off-hand. You might call Roger and check. I will have to visit the hangar and measure.</p>
<p></p> Jonathan,
i have a question…tag:zenith.aero,2019-12-01:2606393:Comment:7018812019-12-01T15:41:27.766Zgeo. keyes, jr.https://zenith.aero/profile/georgeekeyesjr
<p>Jonathan,</p>
<p></p>
<p>i have a question regarding your choice of front tire. what is the inside face-to-face dimension of the superduty nose fork?</p>
<p></p>
<p>i am curious because my older generation CH750 STOL fork is a 2-piece 'square' shape and is getting tired, i.e. yielding slightly. since the superduty is still flat topped, i am hoping to gain clearance to run a larger (and wider?) tire. Initially, i would run the existing Carlisle Turf-Glides.</p>
<p></p>
<p>i want to…</p>
<p>Jonathan,</p>
<p></p>
<p>i have a question regarding your choice of front tire. what is the inside face-to-face dimension of the superduty nose fork?</p>
<p></p>
<p>i am curious because my older generation CH750 STOL fork is a 2-piece 'square' shape and is getting tired, i.e. yielding slightly. since the superduty is still flat topped, i am hoping to gain clearance to run a larger (and wider?) tire. Initially, i would run the existing Carlisle Turf-Glides.</p>
<p></p>
<p>i want to congratulate you on your idaho adventure. sounds like your new set-up is taking you where you want to go - and fast!!</p>
<p></p>
<p>geo.</p> Another update. Now that the…tag:zenith.aero,2019-10-28:2606393:Comment:6979772019-10-28T14:52:07.526ZJonathan Fayhttps://zenith.aero/profile/JonathanFay
<p>Another update. Now that the weather is cooler in Seattle I have had seen 6.5GPH burn in level flight get me between 98-100kts TAS with the big tires! Not bad at all! <a href="https://storage.ning.com/topology/rest/1.0/file/get/3684325440?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/3684325440?profile=RESIZE_710x" class="align-full"/></a></p>
<p>Another update. Now that the weather is cooler in Seattle I have had seen 6.5GPH burn in level flight get me between 98-100kts TAS with the big tires! Not bad at all! <a href="https://storage.ning.com/topology/rest/1.0/file/get/3684325440?profile=original" target="_blank" rel="noopener"><img src="https://storage.ning.com/topology/rest/1.0/file/get/3684325440?profile=RESIZE_710x" class="align-full"/></a></p> Look forward to hearing at wh…tag:zenith.aero,2019-10-14:2606393:Comment:6957412019-10-14T21:54:26.335ZBuddy Sessomshttps://zenith.aero/profile/BuddySessoms
Look forward to hearing at what airspeed you can lift the nose wheel, with the elevator controls held full aft, during the takeoff roll.
Look forward to hearing at what airspeed you can lift the nose wheel, with the elevator controls held full aft, during the takeoff roll. Yesterday afternoon I got a c…tag:zenith.aero,2019-10-10:2606393:Comment:6955482019-10-10T15:37:18.254ZJonathan Fayhttps://zenith.aero/profile/JonathanFay
<p>Yesterday afternoon I got a chance to give the setup a try and I was getting 92kts at 75% power, compared to 100kts with the small wheels and wheel pants.</p>
<p>The other thing is that at both airports I went to I got off on the first exit. Both were almost always used for landings on the other direction. This beast stops super quick now.</p>
<p>Yesterday afternoon I got a chance to give the setup a try and I was getting 92kts at 75% power, compared to 100kts with the small wheels and wheel pants.</p>
<p>The other thing is that at both airports I went to I got off on the first exit. Both were almost always used for landings on the other direction. This beast stops super quick now.</p> Hi Jonathan -
Thank you for s…tag:zenith.aero,2019-10-06:2606393:Comment:6948382019-10-06T15:09:45.007ZTim Joneshttps://zenith.aero/profile/TimJones532
<p>Hi Jonathan -</p>
<p>Thank you for sharing the nice work. You also have an excellent blog with detailed information sharing that I really appreciate. Once you have had more time to characterize it, it would be very interesting to know your "speed penalty" from these gargantuan wheels. </p>
<p>Tim</p>
<p>Hi Jonathan -</p>
<p>Thank you for sharing the nice work. You also have an excellent blog with detailed information sharing that I really appreciate. Once you have had more time to characterize it, it would be very interesting to know your "speed penalty" from these gargantuan wheels. </p>
<p>Tim</p> The nose was custom ordered e…tag:zenith.aero,2019-10-04:2606393:Comment:6947752019-10-04T15:34:49.610ZJonathan Fayhttps://zenith.aero/profile/JonathanFay
<p>The nose was custom ordered earlier on when I realized that with flat tire and full stop compression I had 1.5 inches of clearance before prop strike. I wanted much more so I got a +4" tube made by Zenith.</p>
<p></p>
<p>Zenair Canada makes a extra tall tundra gear spring that is also about 4" taller. It is a special order from Zenith as well, but I was luck that they had some in stock.</p>
<p></p>
<p>The front fork and main wheels/tires are what are "stock" for the 750 Super…</p>
<p>The nose was custom ordered earlier on when I realized that with flat tire and full stop compression I had 1.5 inches of clearance before prop strike. I wanted much more so I got a +4" tube made by Zenith.</p>
<p></p>
<p>Zenair Canada makes a extra tall tundra gear spring that is also about 4" taller. It is a special order from Zenith as well, but I was luck that they had some in stock.</p>
<p></p>
<p>The front fork and main wheels/tires are what are "stock" for the 750 Super Duty.</p>
<p></p>
<p>The Super Duty tires are 27.5" tall. Not quite as big as the Alaska Bushwheel 31" but less than half the price, last longer and use 8" rims so they clear the brakes without having to buy new axels/hubs.</p> Love every bit of this. Well…tag:zenith.aero,2019-10-03:2606393:Comment:6946172019-10-03T21:01:19.130ZDon Morriseyhttps://zenith.aero/profile/DonaldMorrisey
<p>Love every bit of this. Well done</p>
<p>Love every bit of this. Well done</p>