lee-wave Posted January 30, 2021 Share Posted January 30, 2021 About 4- 5 inches of snow fell last weekend in Surrey. The following day I went for a walk to check out the Jab. Poor old thing has not flown since Sept 2020. With the thingy going on we all wonder when will we get airborne again.... no one seems to know. 2 Link to comment Share on other sites More sharing options...
old man emu Posted January 30, 2021 Share Posted January 30, 2021 Oh to be in England, Now that Summertime is HERE! Link to comment Share on other sites More sharing options...
onetrack Posted January 31, 2021 Share Posted January 31, 2021 I hope you've got some kind of permanent warmth being applied to that engine, to prevent corrosion buildup. Oil largely drains off surfaces over a few months, and those surfaces lose any protective oil coating, thus allowing corrosion to start. Even just a couple of permanently-lit 100W incandescent globes situated in the enclosed engine bay, will produce enough heat to reduce corrosion-inducing, wide temperature ranges, and moisture/condensation levels. 1 Link to comment Share on other sites More sharing options...
Bruce Tuncks Posted January 31, 2021 Share Posted January 31, 2021 That poor little jabby! I dunno how fiberglass reacts to that cos I've never seen it before, but I sure would prefer to see it in a hangar. Link to comment Share on other sites More sharing options...
spacesailor Posted January 31, 2021 Share Posted January 31, 2021 The one at Bundaberge didn,t look very good after being left in our sun for a period of time. I wonder what became of it !. spacesailor Link to comment Share on other sites More sharing options...
facthunter Posted January 31, 2021 Share Posted January 31, 2021 Moisture and freezing cracks rocks. ICE expands . Otherwise Icebergs would to the bottom and not float. And that would change a few things.Nev Link to comment Share on other sites More sharing options...
old man emu Posted January 31, 2021 Share Posted January 31, 2021 1 hour ago, facthunter said: And that would change a few things. I reckon there would be Titanic changes. 1 Link to comment Share on other sites More sharing options...
Bruce Tuncks Posted February 1, 2021 Share Posted February 1, 2021 Yep, ice would be bad and sun is too. I reckon its a downside of fiberglass, that and the poor crushing strength. Not to mention the sanding dust killing you. A Jab shouldn't be kept outside, says me. It's bad enough at fly-ins, but that is not for too many days a year. Link to comment Share on other sites More sharing options...
kgwilson Posted February 1, 2021 Share Posted February 1, 2021 One of the benefits of Aluminium is it doesn't mind hot dry sun but give it a damp environment and airborne pollutants along with connection to other metals especially ferrous based ones and you have problems. That's why all the aircraft boneyards are in the desert. Fibreglass doesn't like either. Both need protective coatings. 2 Link to comment Share on other sites More sharing options...
planedriver Posted February 4, 2021 Share Posted February 4, 2021 You are probably at Redhill. I know it well. Just keep the Jabby away from my nephew who flys his models not far away. 1 Link to comment Share on other sites More sharing options...
lee-wave Posted February 14, 2021 Author Share Posted February 14, 2021 On 04/02/2021 at 11:07 AM, planedriver said: You are probably at Redhill. I know it well. Just keep the Jabby away from my nephew who flys his models not far away. Not at Redhill. Parked on a private strip near Effingham. There is a Jab powered Easyraider in the background. Link to comment Share on other sites More sharing options...
Jerry_Atrick Posted February 14, 2021 Share Posted February 14, 2021 (edited) In Somerset, we haven't had the snow other parts of the country have had... In fact, we have had bone-dry gin clear days hovering between -3 and 1 degree. We have had mornings that, although cold, of almost no frost. Perfect flying weather (with the appropriate attire). Pity I am back to renting aircraft, as we are in lockdown, and I can't rent one. Edited February 14, 2021 by Jerry_Atrick 1 Link to comment Share on other sites More sharing options...
old man emu Posted February 14, 2021 Share Posted February 14, 2021 5 hours ago, lee-wave said: Effingham Lee-wave, This is a family-friendly forum. Please avoid using obscenities when describing foodstuffs. 1 1 Link to comment Share on other sites More sharing options...
lee-wave Posted February 16, 2021 Author Share Posted February 16, 2021 On 14/02/2021 at 10:12 PM, old man emu said: Lee-wave, This is a family-friendly forum. Please avoid using obscenities when describing foodstuffs. Nice one 😁....it happens to be the village where Barnes Wallis hung out. He is buried nearby... 1 Link to comment Share on other sites More sharing options...
planedriver Posted February 16, 2021 Share Posted February 16, 2021 (edited) So do you know what happened to "Little Nellie" out of curiosity? It's probably worth a lot more than it's build cost these days, if it's still around somewhere. Edited February 16, 2021 by planedriver Link to comment Share on other sites More sharing options...
lee-wave Posted February 16, 2021 Author Share Posted February 16, 2021 7 minutes ago, planedriver said: So do you know what happened to "Little Nellie" out of curiosity? It's probably worth a lot more than it's build cost these days, if it's still around somewhere. Your thinking of Ken Wallis of autogyro fame ..... Barnes Wallis was the Wellington bomber (geodetic), bouncing bomb (dambusters), tallboy bomb (Tirpitz) designer. 2 Link to comment Share on other sites More sharing options...
planedriver Posted February 16, 2021 Share Posted February 16, 2021 Thanks lee-wave, of course you are correct. Just goes to show that great Aussie wine can confuss your fuzzle box late at night. Wing Cdr. Ken Wallis lived up on the east coast in Norfolk I think. Link to comment Share on other sites More sharing options...
lee-wave Posted March 12, 2021 Author Share Posted March 12, 2021 The latest government guidelines to the resumption of GA. With luck should be back in the air by early April.... https://www.gov.uk/government/publications/coronavirus-covid-19-general-aviation/coronavirus-covid-19-general-aviation Link to comment Share on other sites More sharing options...
jmal Posted April 23, 2021 Share Posted April 23, 2021 Managed to coax the old girl into the air again last weekend...and it was wonderful. Engine sweet as....flew for a half hour at almost full throttle staying close to the strip in case of any problems, but there were none. Will be heading over to Dunsfold (Top Gear) for circuits tomorrow Sat. Airfield is earmarked for development but for the next few years its available for GA with PPI. Pubs are also open....so life is all good again.... 3 1 Link to comment Share on other sites More sharing options...
F10 Posted May 10, 2021 Share Posted May 10, 2021 Seeing that Jab with all that snow on it.....wonder how many negative “g’s” it was pulling! Snow can be pretty heavy! I remember reading an article the Brit CAA wanted a builder to test to destruction, one complete built wing of a Fisher Flying Products Horison II, because despite Barnes Wallis and the brilliant Wellington, they didn’t believe the geodetic construction was acceptable. So, poor guy, he had to build a complete wing, mounted it inverted on a wall, and they started loading sandbags on it. When they got over 7g, it suffered a partial failure of the rear spar. The aircraft would never be able to fly fast enough, to get close to that kind of g loading. 1 Link to comment Share on other sites More sharing options...
facthunter Posted May 10, 2021 Share Posted May 10, 2021 Bit of a co-incidence you mention the Fisher Horizon 11... I owned the only one HE (Michael Fisher) personally built just before He sold the Company which became Fisher Flying Products subsequently. I think it was initially Fisher Aero Corp.. I can check it up if you need to confirm any details. Yes the wings are geodetic and of wood (spruce) and very light and stiff. and CLEVER. I checked the load carrying aspects of the airframe and reinforced the carry through on the rear spar as the location of the strut behind the doors applies extra compressive load there. Nev Link to comment Share on other sites More sharing options...
lee-wave Posted May 10, 2021 Author Share Posted May 10, 2021 10 hours ago, F10 said: Seeing that Jab with all that snow on it.....wonder how many negative “g’s” it was pulling! Snow can be pretty heavy! I remember reading an article the Brit CAA wanted a builder to test to destruction, one complete built wing of a Fisher Flying Products Horison II, because despite Barnes Wallis and the brilliant Wellington, they didn’t believe the geodetic construction was acceptable. So, poor guy, he had to build a complete wing, mounted it inverted on a wall, and they started loading sandbags on it. When they got over 7g, it suffered a partial failure of the rear spar. The aircraft would never be able to fly fast enough, to get close to that kind of g loading. The factory built ULD is rated at +8 -3.5 g. I reckon the weight of snow would have applied < - 1.5g maybe 2 g max. Question.. why, in most aircraft, is the positive g limits greater then the negative g limits ? Link to comment Share on other sites More sharing options...
Marty_d Posted May 10, 2021 Share Posted May 10, 2021 16 minutes ago, lee-wave said: The factory built ULD is rated at +8 -3.5 g. I reckon the weight of snow would have applied < - 1.5g maybe 2 g max. Question.. why, in most aircraft, is the positive g limits greater then the negative g limits ? I guess you're always far more likely to pull excess positive than negative. Reefing it too hard into a turn or pulling out of a dive will load up positive g, whereas not many people do a severe bunt or outside loop. At -3.5g I'd be pushing around 350kg upwards against the seatbelt. Fairly unlikely unless you're in a Pitts Special or similar. Link to comment Share on other sites More sharing options...
lee-wave Posted May 10, 2021 Author Share Posted May 10, 2021 I have to qualify my previous comment.....every object on the surface of our planet is subject to 1 g so my estimation of a max of 2 g that the weight of the snow produced is inclusive of the gravitational acceleration constant. Link to comment Share on other sites More sharing options...
facthunter Posted May 11, 2021 Share Posted May 11, 2021 Negative "G" is particularly unpleasant to most people and the force having to be transmitted by the limited area of the seat belt is much more obvious than being forced into a fairly comfortable seat that has a large area. You can also burst blood vessels in your eyes and brain. Your body is not built for it. With high positive "G" the blood may drain from your brain which is only a temporary problem in most instances. A "G" suite helps there or lying prone. . Nev Link to comment Share on other sites More sharing options...
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