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Overhaul (OH) Releases are subject to stock on hand. Call to confirm availability.
G 88 Series
The Europa G 88 safety release is installed at the center of gravity of gliders and motor gliders. The release is approved by the German aviation authority (LBA) under TCDS 60.230/2 to the airworthiness regulations for tow releases: for cable loads up to 14.1 kN, for maximum all-up weight of 900 kg; automatic release at a cable angle of 83° ± 7°, maximum manual release force is 140 N. The release also conforms to JAR 22 regulations.
G 88 With Lever
Standard version, with 4-position release lever.
G 88 Without Lever
Allows a release lever to be fitted by the aircraft manufacturer, or the release cable can be attached directly to one of the segment holes.
For the cramped conditions in some gliders: the segment is shortened by three holes and the segment bolt is extended for fitting a special release lever at the side of the release body.
||G 88 with lever
||G 88 without lever
||G 88/1-83, bushing 33x10x2, for lever left hand
||G 88/1-83, bushing 34.5x8x1, for lever left hand
||G 88/1-83, bushing 34.5x8x1, for lever right hand
Do not change the glider manufacturer's original positioning of the release
Before removing the release, make a sketch, or take a photo, as a record for installing it again.
Tools needed: You need only some basic tools to install or remove the release in one piece.
A No. 5 Allan key, a 10 mm closed-end wrench, or two 10 mm open-end wrenches.
To install a release use DIN 931-10. 9, or DIN 912-12.9 M6 bolts and DIN
985-M6-6 hexagon nuts.
New bolts must have the same shaft length as the original ones. It is especially important that the thread is not subjected to load, and that the shaft does not protrude more than the thickness of a washer beyond the mounting, as the nut cannot then be tightened properly.
Torque: MA = 8.75 Nm (77.5 lb-in) The release must be installed so that it is not under stress. When a release has been removed, new nuts and bolts should be used when it is reinstalled.
After installing a release, and as part of the periodic aircraft inspections,
these checks must be carried out:
• You must be able to open the unloaded release completely by applying a force of 7.5 ± 1.5 daN (16.5 ± 3.3 lbs.) - measured on a spring balance - on the manual release lever in the cockpit over the full travel of the release actuation arm.
• When the release hook is under a load of approx. 150 daN (330 lbs.), you should still be able to operate the manual release lever in the cockpit with the same force, i.e., 7.5 ± 1.5 daN (16.5 ± 3.3 lbs.).
• If both a nose and a center-of-gravity release are connected to the same release cable, the manual force required to operate them from the cockpit may not exceed 17 daN (37 lbs.), even if one of the releases is under a load of 150 daN (330 lbs.).
Care and Cleaning
The release is largely protected against corrosion. But certain components like the hook cannot get surface protection due to strength reasons. Therefore regular cleaning and servicing is imperative for maintaining the required security level.
During operation and especially when landing away from paved runways, your release is exposed to dirt and pollution. So it is important to check the release before and at the end of every flight operation and to clean it if necessary. This point is indispensable especially if not used daily.